Animal safety

Guinea pig: safe and risky garden plants

Guinea pigs are herbivores with sensitive digestion. They eat large amounts of plant food every day and should only have access to suitable plants. New forage plants should always be introduced gradually.

Guinea pig icon

Quick help

Has your guinea pig eaten a plant?

Search for the plant first. The exact plant part, amount eaten, time of ingestion, possible symptoms, and the animal's weight are important for the next step.

Do not induce vomiting or give home remedies unless a veterinary professional specifically tells you to do so.

  1. Prevent further access to the plant.
  2. Keep remaining plant material or take a clear photo of the plant.
  3. Note the plant part, approximate amount, time, symptoms, and animal weight.
  4. Check the urgency level and contact a veterinarian or emergency clinic if unsure.

Practical guidance

How to assess garden plants for guinea pig

This animal page helps you assess garden plants by urgency, plant part, and evidence level. For possible exposure, start with the action guidance. For garden planning, focus on critical plant parts and access control.

After possible ingestion

The rating helps with initial orientation, but it cannot replace an individual assessment. Amount, plant part, spoiled material, chemical residues, age, weight, and existing health conditions may all matter.

  • Do not wait for symptoms when immediate contact is recommended.
  • Do not give milk, oil, salt, or home remedies.
  • Contact an emergency veterinarian immediately if severe restlessness, breathing problems, seizures, or rapid deterioration occur.

Plan the garden or enclosure

Guinea pigs commonly sample any plant they can reach. Limit access to known forage plants and remove wilted, dirty, or chemically treated material.

  • Keep critical plants and plant parts out of reach.
  • Remove cuttings, windfall fruit, wilted leaves, and compost regularly.
  • Check new plants before placing them in accessible areas.

As feed or a treat

The list shows which plants and plant parts are more suitable, restricted, or critical for guinea pig. It is not a feeding plan and does not replace individual ration advice.

  • Offer only explicitly suitable plant parts.
  • Introduce new foods slowly and in small amounts.
  • Do not trial-feed entries with unclear evidence.

Guinea pig

Search and compare plants

Cards start with the practical decision. Expand symptoms, reasoning, and evidence when needed.

All animals
Suitable 104Restricted 32Critical 24Unclear 20
More filters

180 plants visible

How to read the assessment: Status describes general suitability, urgency describes the recommended response after possible ingestion, and evidence describes confidence in the assessment. Low evidence is not the same as low risk.

Guinea pig

Critical / do not feed

These plants or plant parts should not be fed. Depending on the animal, access control in the garden may also be advisable.

24 Plants

Allium ursinum plant card: Herbs, Amaryllis family, Harvest March - May

Herbs

Allium ursinum

Allium ursinum

toxic

Suitable: No clearly suitable parts listed

Critical: All parts of the plant

Contact an emergency veterinarian immediately. Do not wait for symptoms to appear.

Symptoms, assessment, and evidence

Possible symptoms: Hemolytic anemia, Weakness, Lethargy, Pale mucous membranes, Jaundice, Dark urine

Especially relevant: Consumption of large quantities, Regular consumption

No direct species-specific source was found for guinea pigs. This is a cautious inference from the rabbits profile and the known plant-part risks.

low evidenceinferred or general evidencereviewed 2026-06-01

Full animal assessment · Public plant sources

Onion plant card: Alliums, Amaryllis family, Harvest July - September

Alliums

Onion

Allium cepa

toxic

Suitable: No clearly suitable parts listed

Critical: Bulb, Green shoots (leaves), Flowers

Contact a veterinarian or emergency clinic immediately after ingestion, even if no symptoms are visible yet.

Symptoms, assessment, and evidence

Possible symptoms: Vomiting, Blood in urine, Weakness, Elevated heart rate, Heinz body anemia

Especially relevant: Even small amounts can be harmful, Effect is cumulative with repeated exposure

Onions contain N-propyl disulfide, which can cause oxidative damage to red blood cells in guinea pigs. While direct studies in guinea pigs are lacking, the effect is well-documented in...

low evidenceinferred or general evidencedirect veterinary source1 sourcereviewed 2026-06-02

Full animal assessment · Public plant sources

Welsh onion plant card: Alliums, Amaryllis family, Harvest January - December

Alliums

Welsh onion

Allium fistulosum

toxic

Suitable: No clearly suitable parts listed

Critical: Leaves, Stems, Bulb base

Monitor the animal closely. Seek veterinary advice if vomiting, diarrhea, breathing difficulties, neurological signs, or other symptoms occur.

Symptoms, assessment, and evidence

Possible symptoms: Gastrointestinal irritation, Vomiting, Diarrhea, Anorexia, Lethargy

Especially relevant: All parts contain sulfur compounds toxic to guinea pigs., Small animals are particularly sensitive to Allium compounds.

All parts of Welsh onion (Allium fistulosum) contain sulfur compounds such as disulfides and thiosulfates that are toxic to guinea pigs and can cause gastrointestinal irritation. While...

low evidenceinferred or general evidencedirect veterinary source1 sourcereviewed 2026-06-01

Full animal assessment · Public plant sources

Mint plant card: Herbs, Mint family, Harvest May - October

Herbs

Mint

Mentha

do not feed

Suitable: No clearly suitable parts listed

Critical: All parts, especially Pennyroyal mint (Mentha pulegium), concentrated essential oils

Monitor the animal closely. Seek veterinary advice if vomiting, diarrhea, breathing difficulties, neurological signs, or other symptoms occur.

Symptoms, assessment, and evidence

Possible symptoms: Diarrhea, Gastrointestinal upset

Especially relevant: Large quantities, Pennyroyal mint (Mentha pulegium)

Mint is generally safe for guinea pigs in normal amounts, but large quantities may cause gastrointestinal upset. Pennyroyal mint is toxic and should be avoided. Essential oil should not be...

low evidenceinferred or general evidencedirect veterinary source2 sourcesreviewed 2026-06-02

Full animal assessment · Public plant sources

Allium plant card: Alliums, Amaryllis family, Sunny to partial shade

Alliums

Allium

Allium

do not feed

Suitable: Shaft (white and light green), Leaves (tender, green parts), Flowers (as edible garnish)

Critical: Roots, Very tough, outer leaves, Woody flower stalk after bolting

Monitor the animal closely. Seek veterinary advice if vomiting, diarrhea, breathing difficulties, neurological signs, or other symptoms occur.

Symptoms, assessment, and evidence

Possible symptoms: Gastrointestinal upset, Vomiting, Diarrhea

Especially relevant: Large quantities, Frequent feeding

The edible parts of leek (shaft, tender leaves, flowers) can be offered in small amounts as a treat for guinea pigs, but contain compounds that may cause gastrointestinal upset if overfed...

low evidenceinferred or general evidencedirect veterinary source1 sourcereviewed 2026-06-01

Full animal assessment · Public plant sources

Almond plant card: Nuts, Rose family, Harvest August - October

Nuts

Almond

Prunus dulcis

do not feed

Suitable: Sweet almond kernels (shelled, in very small amounts as a treat)

Critical: Bitter almonds, Leaves, Stems, Bark

Contact an emergency veterinarian immediately. Do not wait for symptoms to appear.

Symptoms, assessment, and evidence

Possible symptoms: Difficulty breathing, Tremors, Weakness, Seizures, Coma, Death (with high doses of hydrogen cyanide)

Especially relevant: Confusion with bitter almonds, Ingestion of leaves, stems, or unripe fruits

Sweet almond kernels can be offered in very small amounts as an occasional treat. Bitter almonds and all other plant parts contain amygdalin, which releases hydrogen cyanide and is toxic...

low evidenceinferred or general evidencereviewed 2026-06-02

Full animal assessment · Public plant sources

Blackthorn plant card: Wild plants, Rose family, Harvest October - December

Wild plants

Blackthorn

Prunus spinosa

do not feed

Suitable: Fruit (processed or after frost)

Critical: No critical parts listed

Based on the available information, no action is usually required. If symptoms occur, veterinary advice is still recommended.

Symptoms, assessment, and evidence

No reliable species-specific assessment is available. Fruits might be considered in very small amounts as a treat after frost or processing, but leaves and seeds should be avoided due to...

insufficientinferred or general evidencereviewed 2026-06-02

Full animal assessment · Public plant sources

broad bean plant card: Legumes, legumes, Harvest May - August

Legumes

broad bean

Vicia faba

do not feed

Suitable: No clearly suitable parts listed

Critical: All plant parts

Monitor the animal closely. Seek veterinary advice if vomiting, diarrhea, breathing difficulties, neurological signs, or other symptoms occur.

Symptoms, assessment, and evidence

Possible symptoms: Vomiting, Diarrhea, Abdominal pain, Lethargy

Especially relevant: Raw consumption, Consumption of large quantities

Edible parts (seeds, young pods, shoot tips) are suitable for guinea pigs after cooking, but only in small amounts as treats. Mature pods and roots contain lectins and are toxic. Favism is...

low evidenceinferred or general evidencedirect veterinary source1 sourcereviewed 2026-06-01

Full animal assessment · Public plant sources

chili pepper plant card: Fruit vegetables, Nightshade family, full sun, warm, sheltered

Fruit vegetables

chili pepper

Capsicum annuum

do not feed

Suitable: No clearly suitable parts listed

Critical: fruits, leaves, stems

Observe the animal over the next few hours. Seek veterinary advice if unusual behavior or symptoms develop.

Symptoms, assessment, and evidence

Possible symptoms: gastrointestinal irritation, diarrhea, vomiting

Especially relevant: cultivar heat level, amount ingested

No direct species-specific source was found for guinea pigs. This is a cautious inference from the rabbits profile and the known plant-part risks.

low evidenceinferred or general evidencereviewed 2026-06-01

Full animal assessment · Public plant sources

Chives plant card: Herbs, Amaryllis family, Harvest April - November

Herbs

Chives

Allium schoenoprasum

do not feed

Suitable: No clearly suitable parts listed

Critical: Leaves, Flowers

Monitor the animal closely. Seek veterinary advice if vomiting, diarrhea, breathing difficulties, neurological signs, or other symptoms occur.

Symptoms, assessment, and evidence

Possible symptoms: Vomiting, Diarrhea, Gastrointestinal upset

Especially relevant: Consuming large quantities

Chives contain N-propyl disulfide, which can cause gastrointestinal upset in guinea pigs. Although no species-specific studies are available, a conservative assessment is made based on...

low evidenceinferred or general evidencedirect veterinary source1 sourcereviewed 2026-06-02

Full animal assessment · Public plant sources

Common bean plant card: Legumes, Pea family, Harvest July - September

Legumes

Common bean

Phaseolus vulgaris

do not feed

Suitable: cooked pods, cooked seeds

Critical: raw pods, raw seeds

Monitor the animal closely. Seek veterinary advice if vomiting, diarrhea, breathing difficulties, neurological signs, or other symptoms occur.

Symptoms, assessment, and evidence

Possible symptoms: vomiting, diarrhea, abdominal pain

Especially relevant: raw consumption, immature pods

Common bean (Phaseolus vulgaris) contains the lectin phasin in its raw state, which can cause gastrointestinal irritation in guinea pigs. Thorough cooking destroys the toxin, allowing...

low evidenceinferred or general evidencedirect veterinary source1 sourcereviewed 2026-06-01

Full animal assessment · Public plant sources

Common Walnut plant card: Nuts, Walnut family, full sun

Nuts

Common Walnut

Juglans regia

do not feed

Suitable: Fruit (nut kernel)

Critical: Green fruit husks, Leaves, Roots

Observe the animal over the next few hours. Seek veterinary advice if unusual behavior or symptoms develop.

Symptoms, assessment, and evidence

Possible symptoms: Gastrointestinal upset

Especially relevant: Consumption of non-edible parts, Unripe or moldy nuts

No direct species-specific source was found for guinea pigs. This is a cautious inference from the rabbits profile and the known plant-part risks.

low evidenceinferred or general evidencereviewed 2026-06-02

Full animal assessment · Public plant sources

Ground Ivy plant card: Herbs, Mint family, Harvest March - October

Herbs

Ground Ivy

Glechoma hederacea

do not feed

Suitable: No clearly suitable parts listed

Critical: Leaves, Flowers, Young shoots

Monitor the animal closely. Seek veterinary advice if vomiting, diarrhea, breathing difficulties, neurological signs, or other symptoms occur.

Symptoms, assessment, and evidence

Possible symptoms: Gastrointestinal upset, Vomiting, Diarrhea

Especially relevant: Nagetiere sind besonders empfindlich gegenüber den ätherischen Ölen und Gerbstoffen in Gundelrebe. Selbst kleine Mengen können bei Meerschweinchen zu Verdauungsstörungen führen., Rodents are particularly sensitive to the essential oils and tannins in ground ivy. Even small amounts can cause digestive disturbances in guinea pigs.

Ground ivy contains essential oils, tannins, and saponins that can be irritating to rodents like guinea pigs. While safe for humans in moderation, small mammals face an increased risk of...

low evidenceinferred or general evidencedirect veterinary source1 sourcereviewed 2026-06-01

Full animal assessment · Public plant sources

Lemon verbena plant card: Herbs, Verbena family, Harvest May - October

Herbs

Lemon verbena

Aloysia citrodora

do not feed

Suitable: Leaves

Critical: Stems (very woody), Roots

Observe the animal over the next few hours. Seek veterinary advice if unusual behavior or symptoms develop.

Symptoms, assessment, and evidence

Possible symptoms: Gastrointestinal irritation, Colic

Especially relevant: Large amounts, Woody stems

Leaves can be given as an occasional treat in small amounts. Stems and roots are not recommended due to high woody content and potential irritation from essential oils. Excessive...

low evidenceinferred or general evidencedirect veterinary source1 sourcereviewed 2026-06-02

Full animal assessment · Public plant sources

peanut plant card: Legumes, Legumes, Harvest September - October

Legumes

peanut

Arachis hypogaea

do not feed

Suitable: Seeds (kernels)

Critical: Shell, Foliage

Monitor the animal closely. Seek veterinary advice if vomiting, diarrhea, breathing difficulties, neurological signs, or other symptoms occur.

Symptoms, assessment, and evidence

Possible symptoms: Gastrointestinal upset, Allergic reactions

Especially relevant: Mold contamination, Overfeeding

Peanut kernels can be fed as an occasional treat in small amounts, but there is a high allergy risk and danger of aflatoxin poisoning from moldy kernels. Shell and foliage are not suitable...

low evidenceinferred or general evidencedirect veterinary source1 sourcereviewed 2026-06-01

Full animal assessment · Public plant sources

Rhubarb plant card: Stalk vegetables, Buckwheat family, Harvest April - June

Stalk vegetables

Rhubarb

Rheum

do not feed

Suitable: Leaf stalks (petioles)

Critical: Leaf blades, Rhizome/Rootstock

Monitor the animal closely. Seek veterinary advice if vomiting, diarrhea, breathing difficulties, neurological signs, or other symptoms occur.

Symptoms, assessment, and evidence

Possible symptoms: Salivation, Tremors, Kidney failure

Especially relevant: Leaves and rhizome contain high oxalic acid concentration, Oxalic acid levels in stalks increase significantly after late June

Only leaf stalks (petioles) in very small amounts as an occasional treat suitable. Leaf blades and rhizome are toxic due to soluble calcium oxalates. Oxalic acid content increases after St...

low evidenceinferred or general evidencedirect veterinary source1 sourcereviewed 2026-06-02

Full animal assessment · Public plant sources

Guinea pig

Restricted use

Plant part, amount, maturity, and the animal's individual situation can all matter here.

32 Plants

Apricot plant card: Stone fruit, Rose family, Harvest July - August

Stone fruit

Apricot

Prunus armeniaca

selected parts only

Suitable: Fruit flesh (without stone)

Critical: Leaves, Stems, Stones, Seeds

Contact a veterinarian or emergency clinic immediately after ingestion, even if no symptoms are visible yet.

Symptoms, assessment, and evidence

Possible symptoms: Cyanide poisoning: Brick red mucous membranes, Dilated pupils, Difficulty breathing, Panting, Shock

Especially relevant: Access to the plant (leaves, stems), Ingestion of stones or seeds

Apricot fruit flesh can be offered in very small quantities as an occasional treat. Leaves, stems, and especially the stones contain cyanogenic glycosides and are toxic. Wilting plant...

low evidenceinferred or general evidencedirect veterinary source1 sourcereviewed 2026-06-01

Full animal assessment · Public plant sources

Acorn Squash plant card: Cucurbits, Gourd family, Harvest September - November

Cucurbits

Acorn Squash

Cucurbita pepo

selected parts only

Suitable: Flesh

Critical: Leaves, Stems, Seeds (raw)

Observe the animal over the next few hours. Seek veterinary advice if unusual behavior or symptoms develop.

Symptoms, assessment, and evidence

Possible symptoms: Gastrointestinal upset, Diarrhea, Vomiting

Especially relevant: Excessive consumption of leaves or stems, Consumption of raw seeds

No direct species-specific source was found for guinea pigs. This is a cautious inference from the rabbits profile and the known plant-part risks.

low evidenceinferred or general evidencereviewed 2026-06-01

Full animal assessment · Public plant sources

Apple plant card: Pome fruit, Rose family, full sun

Pome fruit

Apple

Malus domestica

selected parts only

Suitable: Fruit flesh (without seeds), Peel (from untreated fruit, in moderation)

Critical: Seeds, Leaves, Stems, Branches

Contact an emergency veterinarian immediately. Do not wait for symptoms to appear.

Symptoms, assessment, and evidence

Possible symptoms: Difficulty breathing, Panting, Shock, Dilated pupils, Brick red mucous membranes

Especially relevant: Consumption of large quantities of seeds, leaves, or stems, Consumption of wilted plant parts

Apple flesh without seeds can be offered in very small quantities as an occasional treat. Seeds, leaves, and stems contain cyanogenic glycosides and are toxic. Wilted plant parts are...

low evidenceinferred or general evidencedirect veterinary source1 sourcereviewed 2026-05-29

Full animal assessment · Public plant sources

Aronia plant card: Berries, Rose family, Harvest August - October

Berries

Aronia

Aronia

selected parts only

Suitable: Ripe fruits (in very small quantities as a treat)

Critical: Leaves, Stems, Seeds

Monitor the animal closely. Seek veterinary advice if vomiting, diarrhea, breathing difficulties, neurological signs, or other symptoms occur.

Symptoms, assessment, and evidence

Possible symptoms: Gastrointestinal upset, Diarrhea, Abdominal pain

Especially relevant: Overconsumption, Consumption of non-fruit plant parts

Aronia fruits can be offered in very small quantities as an occasional treat. Leaves, stems, and seeds should be avoided due to potential toxins (cyanogenic glycosides) and tannins. No...

low evidenceinferred or general evidencedirect veterinary source1 sourcereviewed 2026-06-01

Full animal assessment · Public plant sources

Asimina triloba plant card: Tree fruit, Annonaceae, Sunny to partial shade

Tree fruit

Asimina triloba

Asimina triloba

selected parts only

Suitable: Flesh (fully ripe)

Critical: Seeds, Unripe fruits

Observe the animal over the next few hours. Seek veterinary advice if unusual behavior or symptoms develop.

Symptoms, assessment, and evidence

Possible symptoms: Nausea, Vomiting, Stomach upset

Especially relevant: Consumption of seeds, Consumption of unripe fruit

The flesh of fully ripe Asimina triloba can be fed in small amounts as a treat. Seeds and unripe fruits are toxic due to alkaloids and can cause gastrointestinal upset.

low evidenceinferred or general evidencedirect veterinary source1 sourcereviewed 2026-06-01

Full animal assessment · Public plant sources

Common Fig plant card: Fruit, Mulberry family, Harvest August - November

Fruit

Common Fig

Ficus carica

selected parts only

Suitable: ripe fruit (syconium)

Critical: No critical parts listed

The urgency cannot be assessed reliably. When in doubt, seek veterinary advice.

Symptoms, assessment, and evidence

No reliable species-specific assessment is available.

insufficientinferred or general evidencereviewed 2026-06-01

Full animal assessment · Public plant sources

Cornelian cherry plant card: Stone fruit, Dogwood family, Harvest August - September

Stone fruit

Cornelian cherry

Cornus mas

selected parts only

Suitable: Fruit pulp

Critical: Seeds, Leaves

Observe the animal over the next few hours. Seek veterinary advice if unusual behavior or symptoms develop.

Symptoms, assessment, and evidence

Possible symptoms: Gastrointestinal upset, Vomiting

Especially relevant: Overconsumption, Consumption of unripe fruit

The fruit pulp of Cornelian cherry is suitable for guinea pigs in small amounts as a treat. Seeds are indigestible and can cause digestive issues. Leaves contain fine hairs that may cause...

low evidenceinferred or general evidencereviewed 2026-06-01

Full animal assessment · Public plant sources

Eggplant plant card: Fruit vegetables, Nightshade family, Harvest July - October

Fruit vegetables

Eggplant

Solanum melongena

selected parts only

Suitable: Ripe flesh

Critical: Leaves, Stems, Unripe fruits, Green plant parts

Observe the animal over the next few hours. Seek veterinary advice if unusual behavior or symptoms develop.

Symptoms, assessment, and evidence

Possible symptoms: Gastrointestinal upset (if green plant parts or unripe fruits are consumed)

Especially relevant: Consumption of green plant parts or unripe fruits, Excessive consumption of ripe fruits

Ripe flesh can be given in small amounts as a treat. Green plant parts and unripe fruits are toxic due to solanine content. Quantity should be limited to avoid digestive upset.

low evidenceinferred or general evidencedirect veterinary source1 sourcereviewed 2026-06-01

Full animal assessment · Public plant sources

European Plum plant card: Stone fruit, Rose family, Harvest July - October

Stone fruit

European Plum

Prunus domestica

selected parts only

Suitable: Fruit flesh, Skin

Critical: Seeds (pit), Leaves, Bark

Monitor the animal closely. Seek veterinary advice if vomiting, diarrhea, breathing difficulties, neurological signs, or other symptoms occur.

Symptoms, assessment, and evidence

Possible symptoms: Vomiting, Diarrhea, Breathing difficulties

Especially relevant: Consumption of seeds or leaves, Excessive fruit consumption

The fruit flesh and skin of plums are suitable for guinea pigs in small amounts as a treat. The seeds contain amygdalin, which can release hydrogen cyanide and is toxic. Leaves and bark...

low evidenceinferred or general evidencereviewed 2026-06-02

Full animal assessment · Public plant sources

Goji Berry plant card: Berries, Nightshades, Harvest August - October

Berries

Goji Berry

Lycium barbarum

selected parts only

Suitable: fully ripe fruits

Critical: green unripe fruits, leaves, stems, roots

Observe the animal over the next few hours. Seek veterinary advice if unusual behavior or symptoms develop.

Symptoms, assessment, and evidence

Possible symptoms: gastrointestinal upset, vomiting, diarrhea

Especially relevant: consumption of unripe parts, excessive consumption of ripe fruits

Fully ripe goji berries are suitable for guinea pigs in small amounts as an occasional treat. Unripe fruits and other plant parts contain toxic compounds such as solanine and should be...

low evidenceinferred or general evidencereviewed 2026-06-01

Full animal assessment · Public plant sources

Greengage plant card: Stone fruit, Rose family, Harvest August - September

Stone fruit

Greengage

Prunus domestica subsp. italica

selected parts only

Suitable: Fruit flesh, Fruit skin

Critical: Seeds (pit), Leaves, Bark

Monitor the animal closely. Seek veterinary advice if vomiting, diarrhea, breathing difficulties, neurological signs, or other symptoms occur.

Symptoms, assessment, and evidence

Possible symptoms: Vomiting, Diarrhea, Breathing difficulties, Weakness

Especially relevant: Consumption of seeds or pits, Excessive fruit flesh consumption

The fruit flesh of greengage is suitable for guinea pigs in small amounts as a treat. Pits, leaves, and bark contain cyanogenic glycosides and are toxic. If toxic parts are ingested, seek...

low evidenceinferred or general evidencereviewed 2026-06-02

Full animal assessment · Public plant sources

Kiwi plant card: Fruit, Kiwifruit family, Harvest October - November

Fruit

Kiwi

Actinidia chinensis

selected parts only

Suitable: Fruit flesh

Critical: Skin, Leaves

Observe the animal over the next few hours. Seek veterinary advice if unusual behavior or symptoms develop.

Symptoms, assessment, and evidence

Possible symptoms: Gastrointestinal upset, Diarrhea

Especially relevant: Overconsumption, Sensitivity to actinidin

Kiwi fruit flesh is suitable for guinea pigs in small amounts as an occasional treat. Skin and leaves should be avoided due to potential irritation and mild toxicity. Due to high water and...

low evidenceinferred or general evidencereviewed 2026-06-01

Full animal assessment · Public plant sources

Guinea pig

Likely suitable

These plants or plant parts are generally considered suitable based on the reviewed data. They are not a substitute for a balanced diet.

104 Plants

parsley plant card: Herbs, celery family, Harvest May - November

Herbs

parsley

Petroselinum crispum

moderation only

Suitable: Leaves, Stems

Critical: Plants in the flowering stage (increased apiol content), Seeds (high furanocoumarin content)

Observe the animal over the next few hours. Seek veterinary advice if unusual behavior or symptoms develop.

Symptoms, assessment, and evidence

Possible symptoms: Photosensitization (sunburn, dermatitis) with ingestion of large amounts

Especially relevant: Ingestion of large quantities, Ingestion of plants in the flowering stage

Parsley is safe in moderation for guinea pigs, particularly the leaves and stems. Large quantities or plants in the flowering stage should be avoided due to apiol and furanocoumarins, which...

low evidenceinferred or general evidencedirect veterinary source1 sourcereviewed 2026-06-02

Full animal assessment · Public plant sources

Dill plant card: Herbs, Celery family, Harvest May - October

Herbs

Dill

Anethum graveolens

moderation only

Suitable: Leaves, Seeds, Flowers, Tender stems

Critical: No critical parts listed

Based on the available information, no action is usually required. If symptoms occur, veterinary advice is still recommended.

Symptoms, assessment, and evidence

Especially relevant: Phototoxicity possible with sap contact and UV light

Dill is generally suitable for guinea pigs as a treat in small amounts. Leaves, seeds, flowers, and tender stems can be fed. Contact with plant sap and UV light poses a low risk of...

low evidenceinferred or general evidencedirect veterinary source1 sourcereviewed 2026-06-01

Full animal assessment · Public plant sources

Wild Strawberry plant card: Berries, Rose family, Full sun to partial shade

Berries

Wild Strawberry

Fragaria vesca

moderation only

Suitable: Fruits, Leaves

Critical: No critical parts listed

Based on the available information, no action is usually required. If symptoms occur, veterinary advice is still recommended.

Symptoms, assessment, and evidence

Possible symptoms: Gastrointestinal upset (with overconsumption)

Especially relevant: Overconsumption may cause gastrointestinal upset

No direct species-specific source was found for guinea pigs. This is a cautious inference from the rabbits profile and the known plant-part risks.

low evidenceinferred or general evidencedirect veterinary source1 sourcereviewed 2026-06-02

Full animal assessment · Public plant sources

Allium ramosum plant card: Herbs, Amaryllis family, Harvest April - October

Herbs

Allium ramosum

Allium ramosum

moderation only

Suitable: Leaves, Flowers

Critical: Bulbs

Monitor the animal closely. Seek veterinary advice if vomiting, diarrhea, breathing difficulties, neurological signs, or other symptoms occur.

Symptoms, assessment, and evidence

Possible symptoms: Gastrointestinal upset, Diarrhea

Especially relevant: Sensitivity to Allium compounds, Excessive consumption

Leaves and flowers of Schnittknoblauch may be suitable as an occasional treat for guinea pigs in small amounts, but there is a risk of gastrointestinal upset due to disulfide and...

low evidenceinferred or general evidencereviewed 2026-06-02

Full animal assessment · Public plant sources

Asparagus plant card: Vegetables, Asparagus family, Harvest April - June

Vegetables

Asparagus

Asparagus

moderation only

Suitable: Young shoots (asparagus spears)

Critical: Berries, Woody ends of spears, Mature fronds

Observe the animal over the next few hours. Seek veterinary advice if unusual behavior or symptoms develop.

Symptoms, assessment, and evidence

Possible symptoms: Gastrointestinal upset, Vomiting, Diarrhea

Especially relevant: Consumption of berries or mature plant parts, Overconsumption of young shoots

The young shoots (asparagus spears) are suitable for guinea pigs in small amounts as a treat. The red berries as well as woody ends and mature fronds contain saponins and are toxic or...

low evidenceinferred or general evidencereviewed 2026-06-02

Full animal assessment · Public plant sources

Barbarea vulgaris plant card: Leafy vegetables, Brassicaceae, sun to partial shade

Leafy vegetables

Barbarea vulgaris

Barbarea vulgaris

moderation only

Suitable: young leaves, flower buds

Critical: very pungent or old leaves

Based on the available information, no action is usually required. If symptoms occur, veterinary advice is still recommended.

Symptoms, assessment, and evidence

Possible symptoms: gastrointestinal upset if consumed in excess

Especially relevant: excessive consumption, old or very pungent leaves

Barbarea vulgaris is palatable for guinea pigs in moderation, especially young leaves and flower buds. Older or very pungent leaves should be fed sparingly or not at all, as they can cause...

low evidenceinferred or general evidencereviewed 2026-06-01

Full animal assessment · Public plant sources

basil plant card: Herbs, Lamiaceae, warm, sunny, sheltered

Herbs

basil

Ocimum basilicum

moderation only

Suitable: leaves, young shoots, flowers

Critical: No critical parts listed

Observe the animal over the next few hours. Seek veterinary advice if unusual behavior or symptoms develop.

Symptoms, assessment, and evidence

Possible symptoms: Gastrointestinal upset (e.g., diarrhea, gas) if consumed in excess

Especially relevant: Excessive consumption, Sensitive animals

No direct species-specific source was found for guinea pigs. This is a cautious inference from the rabbits profile and the known plant-part risks.

low evidenceinferred or general evidencedirect veterinary source1 sourcereviewed 2026-06-01

Full animal assessment · Public plant sources

beet plant card: Root vegetables, Amaranthaceae, Harvest June - November

Root vegetables

beet

Beta vulgaris subsp. vulgaris Conditiva Group

moderation only

Suitable: Root (taproot) (in moderation), Leaves (in moderation)

Critical: No critical parts listed

Observe the animal over the next few hours. Seek veterinary advice if unusual behavior or symptoms develop.

Symptoms, assessment, and evidence

Possible symptoms: Gastrointestinal upset (with excessive consumption), Harmless discoloration of urine and feces (beeturia)

Especially relevant: Excessive consumption, Sensitivity to oxalic acid

Beetroot can be fed in moderation. The leaves contain oxalic acid, so they should only be offered in small amounts. The red discoloration of urine and feces is harmless.

low evidenceinferred or general evidencereviewed 2026-06-02

Full animal assessment · Public plant sources

Bilberry plant card: Berries, Heathers, Harvest July - September

Berries

Bilberry

Vaccinium myrtillus

moderation only

Suitable: Fruits

Critical: No critical parts listed

Based on the available information, no action is usually required. If symptoms occur, veterinary advice is still recommended.

Symptoms, assessment, and evidence

Possible symptoms: Diarrhea with excessive consumption

Especially relevant: Overconsumption may cause diarrhea due to high fiber and tannin content., Wild-collected berries may carry parasites such as fox tapeworm eggs – wash thoroughly before feeding.

Bilberry fruits are suitable for guinea pigs in small amounts as an occasional treat. They contain vitamin C and antioxidants, but should only be fed occasionally due to sugar content and...

low evidenceinferred or general evidence1 sourcereviewed 2026-06-01

Full animal assessment · Public plant sources

broccoli plant card: Brassicas, mustard family, Sunny to partial shade

Brassicas

broccoli

Brassica oleracea var. italica

moderation only

Suitable: flower buds, tender stems, young leaves

Critical: No critical parts listed

Observe the animal over the next few hours. Seek veterinary advice if unusual behavior or symptoms develop.

Symptoms, assessment, and evidence

Especially relevant: Excessive consumption may cause gas or digestive discomfort

Broccoli is suitable for guinea pigs in moderation and is commonly fed as part of a balanced diet. The flower buds, tender stems, and young leaves are safe. Excessive amounts may cause gas...

low evidenceinferred or general evidence1 sourcereviewed 2026-06-01

Full animal assessment · Public plant sources

Brussels sprouts plant card: Cabbages, Mustard family, Sunny to partial shade

Cabbages

Brussels sprouts

Brassica oleracea var. gemmifera

moderation only

Suitable: Buds (sprouts), Young leaves

Critical: No critical parts listed

Observe the animal over the next few hours. Seek veterinary advice if unusual behavior or symptoms develop.

Symptoms, assessment, and evidence

Possible symptoms: Gas, Gastrointestinal discomfort

Especially relevant: Overconsumption may cause gas or gastrointestinal discomfort.

Brussels sprouts are edible and non-toxic for guinea pigs but should only be fed as an occasional treat in small amounts due to gas risk. Young sprouts and leaves are preferred.

low evidenceinferred or general evidencereviewed 2026-06-02

Full animal assessment · Public plant sources

cardoon plant card: Stalk vegetables, daisy family, Harvest July - October

Stalk vegetables

cardoon

Cynara cardunculus

moderation only

Suitable: Young leaf stalks, Young leaves, Flower buds

Critical: Older, fibrous leaf stalks, Thorns on leaves and stalks

Observe the animal over the next few hours. Seek veterinary advice if unusual behavior or symptoms develop.

Symptoms, assessment, and evidence

Possible symptoms: Gastrointestinal upset (with excessive consumption or consumption of older, fibrous parts)

Especially relevant: Excessive consumption, Consumption of older, fibrous leaf stalks

No direct species-specific source was found for guinea pigs. This is a cautious inference from the rabbits profile and the known plant-part risks.

low evidenceinferred or general evidencereviewed 2026-06-01

Full animal assessment · Public plant sources

Guinea pig

Not sufficiently known

The available evidence for this plant-animal combination is currently insufficient.

20 Plants

Asian pear plant card: Pome fruit, Rose family, Harvest August - October

Pome fruit

Asian pear

Pyrus pyrifolia

not established

Suitable: No clearly suitable parts listed

Critical: No critical parts listed

The urgency cannot be assessed reliably. When in doubt, seek veterinary advice.

Symptoms, assessment, and evidence

No reliable species-specific assessment is available.

insufficientinferred or general evidencereviewed 2026-06-02

Full animal assessment · Public plant sources

Bok choy plant card: Brassicas, Cabbage family, Harvest May - July, September - November

Brassicas

Bok choy

Brassica rapa subsp. chinensis

not established

Suitable: No clearly suitable parts listed

Critical: No critical parts listed

The urgency cannot be assessed reliably. When in doubt, seek veterinary advice.

Symptoms, assessment, and evidence

No reliable species-specific assessment is available.

insufficientinferred or general evidencereviewed 2026-06-02

Full animal assessment · Public plant sources

borage plant card: Herbs, borage family, Harvest May - September

Herbs

borage

Borago officinalis

not established

Suitable: No clearly suitable parts listed

Critical: No critical parts listed

The urgency cannot be assessed reliably. When in doubt, seek veterinary advice.

Symptoms, assessment, and evidence

Young leaves and flowers of borage may be suitable as an occasional treat for guinea pigs in small amounts, but contain pyrrolizidine alkaloids that can be hepatotoxic with excessive...

insufficientinferred or general evidencedirect veterinary source1 sourcereviewed 2026-06-01

Full animal assessment · Public plant sources

butternut squash plant card: Cucurbits, Gourd family, Sunny to partially shaded

Cucurbits

butternut squash

Cucurbita moschata

not established

Suitable: No clearly suitable parts listed

Critical: No critical parts listed

The urgency cannot be assessed reliably. When in doubt, seek veterinary advice.

Symptoms, assessment, and evidence

No reliable species-specific assessment is available.

insufficientinferred or general evidencereviewed 2026-06-01

Full animal assessment · Public plant sources

celery plant card: Stalk vegetables, Carrot family, Harvest July - October

Stalk vegetables

celery

Apium graveolens var. dulce

not established

Suitable: No clearly suitable parts listed

Critical: No critical parts listed

The urgency cannot be assessed reliably. When in doubt, seek veterinary advice.

Symptoms, assessment, and evidence

Celery (stalks and leaves) is suitable for guinea pigs in moderation and is commonly fed as a treat. Seeds contain higher concentrations of essential oils and psoralens and should be...

insufficientinferred or general evidencereviewed 2026-06-02

Full animal assessment · Public plant sources

Cherry plum plant card: Stone fruit, Rose family, Harvest June - August

Stone fruit

Cherry plum

Prunus cerasifera

not established

Suitable: No clearly suitable parts listed

Critical: No critical parts listed

The urgency cannot be assessed reliably. When in doubt, seek veterinary advice.

Symptoms, assessment, and evidence

No reliable species-specific assessment is available.

insufficientinferred or general evidencereviewed 2026-06-01

Full animal assessment · Public plant sources

Chickpea plant card: Legumes, Legume family, Harvest July - September

Legumes

Chickpea

Cicer arietinum

not established

Suitable: No clearly suitable parts listed

Critical: No critical parts listed

The urgency cannot be assessed reliably. When in doubt, seek veterinary advice.

Symptoms, assessment, and evidence

No reliable species-specific assessment is available.

insufficientinferred or general evidencereviewed 2026-06-01

Full animal assessment · Public plant sources

Damson plum plant card: Stone fruit, Rose family, Harvest July - October

Stone fruit

Damson plum

Prunus domestica

not established

Suitable: No clearly suitable parts listed

Critical: No critical parts listed

The urgency cannot be assessed reliably. When in doubt, seek veterinary advice.

Symptoms, assessment, and evidence

No reliable species-specific assessment is available.

insufficientinferred or general evidencereviewed 2026-06-02

Full animal assessment · Public plant sources

FAQ

Common questions about garden plants and guinea pig

Which garden plants are suitable for guinea pig?

The overview shows which plants are rated as suitable, restricted, critical, or unclear for guinea pig. Always check the specific plant part, such as fruit, leaves, stems, seeds, or tubers.

What does restricted mean for guinea pig?

Restricted means that the plant or certain plant parts are not automatically unsafe, but may only be suitable for guinea pig in appropriate amounts, under control, or with extra caution.

What does critical mean for guinea pig?

Critical means the plant or certain plant parts should not be fed. Depending on the plant, access control in the garden may also be useful.

Does this list replace veterinary advice?

No. The information helps with garden safety decisions, but it does not replace veterinary advice. If risky plant parts were ingested, symptoms appear, or behavior changes, contact a veterinarian.

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