Plant Profile
MizunaBrassica rapa subsp. nipposinica
A fast-growing, peppery leafy vegetable from the mustard family, ideal for salads and quick cooking.
Quick profile
Key data
Suitable growing locations:
Good neighbors
StrawberryCucumberCarrotLettuce
Indoor & direct sowing
Mizuna: Sowing and germination
For an early spring or late autumn harvest.
Direct sowing is possible from the last frost. Spring and autumn sowings are most productive.
Planting & site
Mizuna: Planting and spacing
Seedlings can be transplanted after the last frosts. Ensure adequate watering.
Site & practical notes
General: Mizuna is a fast-growing, easy-care leafy vegetable well-suited for garden beds, balconies, or even indoors. It prefers cooler weather but can be grown in summer with adequate watering., Sowing: Sow from March indoors or in a greenhouse, and directly outdoors from April. For continuous harvest, sow again every 2-3 weeks., Cultivation: Requires a sunny to partial shade location with loose, nutrient-rich soil. Consistent moisture is important to prevent bolting and bitterness., Harvest: Harvest outer leaves to encourage inner leaf growth, or cut the entire plant. Harvesting is possible from about 4-6 weeks after sowing., Pest disease prevention: Watch out for flea beetles, slugs, and aphids. Good crop rotation and hygiene are important for preventing diseases like clubroot., Container growing: Well-suited for window boxes and pots. Ensure adequate watering and fertilization if necessary.
Temperature & frost
Mizuna: Temperature and site
Water & nutrients
Mizuna: Water, nutrients and care
Container & growth
Mizuna: Container, support and growth
Year plan
Mizuna Calendar
Ideal for spring and autumn harvests, as Mizuna prefers cooler temperatures.
Relevant now
June
- Continue sowing for continuous harvest.outdoors: Every 2-3 weeks.
- Harvest outer leaves.harvest: Regular harvesting keeps the plant productive.
- Check for aphids.outdoors: Remove them manually or with a jet of water.
- Ensure adequate watering during heat.outdoors: Heat can lead to premature bolting.
Next up
July
- Continue sowing for continuous harvest.outdoors: In very hot weather, sow in the late afternoon or in a shadier spot.
- Harvest outer leaves.harvest: Quality may decline in extreme heat.
- Shade if necessary during prolonged heat.outdoors: Prevents premature bolting and leaf scorch.
- Monitor for pests and diseases.outdoors: Good air circulation and avoiding waterlogged soil help prevent diseases.
Monthly tasks
Single tasks from monthly data; repeated seasonal windows are shown in the overview above.
January
Quiet month
February
Direct sowing
- Prepare seed trays and soil.indoors: Ensure containers are clean and soil is well-draining.
Harvest
- Sow indoors/in greenhouse for early harvest.indoors: Start sowing in seed trays or small pots.
March
Direct sowing
- Continue sowing indoors/in greenhouse.indoors: For staggered harvesting.
- First direct sowing outdoors as soon as soil is workable.outdoors: Choose a sunny location.
Growing
- Prepare soil: incorporate compost, remove weeds.outdoors: Improves soil structure and nutrient supply.
April
Direct sowing
- Continue sowing outdoors.outdoors: For continuous harvest.
Planting
- Plant out pre-grown seedlings outdoors.outdoors: After the risk of night frost has passed.
Harvest
- First harvest of young leaves possible.harvest: Harvest outer leaves to encourage inner leaf growth.
Growing
- Water regularly, especially during dry spells.outdoors: Consistent moisture is important for rapid growth.
May
Planting
- Plant out seedlings.outdoors: If not already done.
Harvest
- Continue sowing for continuous harvest.outdoors: Sow every 2-3 weeks.
- Harvest outer leaves.harvest: Continuous harvesting promotes growth.
Plant health
- Watch for pests (e.g., cabbage root fly, slugs) and take action if necessary.outdoors: Cultural practices like mulching or using nets can help.
June
Harvest
- Continue sowing for continuous harvest.outdoors: Every 2-3 weeks.
- Harvest outer leaves.harvest: Regular harvesting keeps the plant productive.
Growing
- Check for aphids.outdoors: Remove them manually or with a jet of water.
- Ensure adequate watering during heat.outdoors: Heat can lead to premature bolting.
August
Planting
- Fertilize if necessary, especially for older plants.outdoors: A light feeding with organic fertilizer can boost growth.
Harvest
- Harvest outer leaves.harvest: Continuous harvesting.
- Sow for autumn harvest.outdoors: This sowing benefits from cooler temperatures.
September
Harvest
- Harvest outer leaves.harvest: Harvesting can continue until frost.
- Sow for late autumn harvest or overwintering (in mild regions).outdoors: This sowing should germinate before the first hard frost.
Growing
- Consider protection against heavy rain and cold.outdoors: A fleece or cover can help protect the plants.
October
Planting
- Young plants can be protected from light frost with fleece if necessary.outdoors: This extends the harvest period.
Harvest
- Continue harvesting as long as temperatures are mild.harvest: Leaves may become sweeter in cooler weather.
- Final harvest before the first hard frost.harvest: Remove any remaining plants to prepare the soil for next year.
November
Planting
- In mild climates, plants can overwinter under protection (e.g., fleece, cold frame).outdoors: This allows for an early harvest next spring.
Harvest
- Continue harvesting as long as possible.harvest: In mild regions, harvesting can continue into winter.
Growing
- Prepare soil for next year.outdoors: Remove plant debris and incorporate compost.
December
Quiet month
Flowering & pollination
Mizuna Flowering & pollination
Self-fertility
partial
Pollinator needed
yes
Overview
Pollination is primarily carried out by insects such as bees and hoverflies, but wind can also play a role. For good seed set, maintaining distance from other Brassica species is advisable to prevent unwanted cross-pollination.
Notes
Although self-pollination is possible, the presence of pollinators increases seed set and quality.
Companion guide
Mizuna Companion guide
Good neighbors
StrawberryCucumberCarrotLettuceSpinachBeanPeaCorianderMintRosmarinus tomentosusThymusMarigold
Avoid
Cabbage (all types)RadishMustardbroccolikohlrabicauliflower
Use & storage
Mizuna Use & storage
Harvest from the outside in, or cut whole plants. Regular harvesting encourages new growth.
Storage
Fresh vegetable, short-term storage
Storage life
In the refrigerator for 2-4 days. Can last up to a week if stored cool (around 0°C) with high humidity.
Harvest
Harvest from the outside in, or cut whole plants. Regular harvesting encourages new growth.
Processing
After harvest
Harvested leaves and stems should be stored cool and consumed soon to maintain freshness and flavor.
Edibility & safety
Mizuna Edibility & safety
For people
In brief: which parts are edible, which parts remain risky, and whether raw consumption makes sense.
Safety notes
Mizuna is non-toxic and safe for consumption.
Animal safety
For many animals, this plant is generally low-risk: 14 animal types are rated suitable or mostly suitable. Quantity, plant part, and individual tolerance still matter.
Each row shows which parts are more suitable and which parts are critical.
Companion animals
DogLeaves, Young stems
No risk parts listed
Leaves, Young stems
No risk parts listed
Overconsumption may cause gastrointestinal upset
Gastrointestinal upset (e.g., bloating, mild diarrhea) with overconsumption
observe
Mizuna is edible for dogs in moderation and used as a leafy vegetable. Young leaves and stems are tender and mild. No known toxic compounds that are harmful in normal amounts. As part of the Brassica family, it contains glucosinolates which are harmless in normal amounts. Excessive consumption may cause mild gastrointestinal upset due to fiber content. Feed fresh and washed, introduced in small amounts for…
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CatLeaves, Young stems
No risk parts listed
Leaves, Young stems
No risk parts listed
Overconsumption may cause gastrointestinal upset
Gastrointestinal upset (e.g., vomiting, diarrhea) with overconsumption
observe
Mizuna is suitable for cats in small amounts as a treat. Young leaves and stems are preferred. Overconsumption may cause gastrointestinal upset. No known toxic compounds in edible parts.
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RabbitLeaves, Young stems
No risk parts listed
Leaves, Young stems
No risk parts listed
Overconsumption may cause gastrointestinal upset
Gastrointestinal upset (e.g., bloating, mild diarrhea) with overconsumption
observe
Mizuna is suitable for rabbits in moderation and can be fed as part of their regular diet. Young leaves and stems are particularly suitable. As with all fresh feeds, a gradual introduction is recommended to avoid digestive upset.
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Guinea pigLeaves, Young stems
No risk parts listed
Leaves, Young stems
No risk parts listed
Overconsumption may cause gastrointestinal upset
Gastrointestinal upset (e.g., bloating, mild diarrhea) with overconsumption
observe
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. Mizuna is suitable in moderation.
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HamsterLeaves, Young stems
No risk parts listed
Leaves, Young stems
No risk parts listed
Excessive consumption may cause gas or diarrhea
Gastrointestinal upset (e.g., bloating, mild diarrhea) with overconsumption
observe
Mizuna leaves and young stems are suitable for hamsters in small amounts as a treat. No known toxic compounds. Part of the Brassica family, generally considered safe for small rodents when fed fresh and thoroughly washed. Introduce gradually to avoid digestive issues. Not suitable as a main food.
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BudgieLeaves, Young stems
No risk parts listed
Leaves, Young stems
No risk parts listed
Overconsumption may cause gastrointestinal upset
Gastrointestinal upset (e.g., mild diarrhea) with overconsumption
observe
Mizuna is suitable for budgies in moderation as fresh green feed and is readily eaten due to its mild taste and nutritional value. Young leaves and stems are particularly preferred. No known harmful compounds or poisoning cases documented in birds. As with any green feed, it should be fresh, pesticide-free, and offered in variety with other safe plants. Overconsumption of any single plant can unbalance the diet…
Open animal pageFarm animals
HorseLeaves, Young stems
No risk parts listed
Leaves, Young stems
No risk parts listed
Overconsumption may cause bloat or gastrointestinal upset
Gastrointestinal upset (e.g., bloating, mild diarrhea) with overconsumption
observe
Mizuna is suitable for horses in moderation as a forage plant. Young leaves and stems are nutrient-rich and well-tolerated. No known toxic effects under normal feeding. Excessive consumption may cause mild gastrointestinal upset.
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ChickenLeaves, Young stems
No risk parts listed
Leaves, Young stems
No risk parts listed
Overfeeding may cause digestive upset
Gastrointestinal upset (e.g., mild diarrhea) with overconsumption
observe
Mizuna leaves and young stems are suitable for chickens in moderation as a treat. No known toxic compounds. Overfeeding may pose a risk of digestive upset due to high fiber content.
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DuckLeaves, Young stems
No risk parts listed
Leaves, Young stems
No risk parts listed
Overfeeding may cause digestive upset
Gastrointestinal upset (e.g., mild diarrhea) with overconsumption
observe
Mizuna is suitable for ducks in moderation as a treat. Young leaves and stems are preferred. No known toxic compounds. Overconsumption may cause mild gastrointestinal upset. Not suitable as a main food.
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GooseLeaves, Young stems
No risk parts listed
Leaves, Young stems
No risk parts listed
Overconsumption may cause gastrointestinal upset
Gastrointestinal upset (e.g., mild diarrhea) with overconsumption
observe
Mizuna is suitable for geese in moderation as feed. Young leaves and stems are readily consumed and nutritious. No known harmful compounds or species-specific poisoning cases documented. As with any feed, gradual introduction is advised to avoid digestive upset.
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SheepLeaves, Young stems
No risk parts listed
Leaves, Young stems
No risk parts listed
Overconsumption may cause bloat or gastrointestinal upset
Gastrointestinal upset (e.g., bloating, mild diarrhea) with overconsumption
observe
Mizuna is safe for sheep in moderation. Young leaves and stems are edible and well-tolerated. Due to high water and fiber content, it should only be given as supplemental feed to avoid digestive issues. No known toxic compounds in edible parts.
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GoatLeaves, Young stems
No risk parts listed
Leaves, Young stems
No risk parts listed
Overconsumption may cause bloat or gastrointestinal upset
Gastrointestinal upset (e.g., bloating, mild diarrhea) with overconsumption
observe
No direct species-specific source was found for goats. This is a cautious inference from the sheep profile and the known plant-part risks. Mizuna is suitable in moderation.
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CattleLeaves, Young stems
No risk parts listed
Leaves, Young stems
No risk parts listed
Overconsumption may cause bloat or digestive upset due to high water and fiber content.
Gastrointestinal upset (e.g., bloating, mild diarrhea) with overconsumption
observe
Mizuna leaves and young stems are suitable for cattle in moderation as supplemental feed. No known toxic compounds. Overconsumption may cause digestive upset due to high water and fiber content. Not suitable as primary feed.
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PigLeaves, Young stems
No risk parts listed
Leaves, Young stems
No risk parts listed
Overconsumption may cause bloating or gastrointestinal discomfort due to high fiber and glucosinolate content.
Gastrointestinal upset (e.g., bloating, mild diarrhea) with overconsumption
observe
Mizuna is edible for pigs in moderation and valued as nutritious green fodder. Young leaves and stems are preferred. As with all Brassicas, feeding should be moderate to avoid bloating. No known toxic compounds in normal feeding amounts.
Open animal pageThese guidelines are for general information only and do not replace veterinary diagnosis. If critical plant parts were ingested or the animal shows unusual behaviour or symptoms, seek veterinary advice.
Max risk
unknown
Highest status
moderation only
Urgency
observe
Saving seed
Mizuna Saving seed
Seed viability
2 - 4 years
Practical tips
Mizuna Practical tips
Common beginner mistakes
Success pattern
High-impact tips
Grower observations
Plant Profile
Additional plant images
Health
Pests, Diseases
Plant health
Diagnosis help
Mizuna Diagnosis help
Pest groups
Disease groups
Prevention
Diagnosis
Symptoms like yellowing leaves, holes, wilting, or stunted growth can indicate various problems. Accurate identification is crucial for correct treatment.
Cultural prevention
Monitoring
First response
Diagnostic rules
Swollen, gall-like roots or root lumps
Possible causes: Clubroot
- Check soil for acidic reaction.
- Examine plant roots.
Yellowish spots on leaf tops, whitish-grey mold on leaf undersides
Possible causes: Downy mildew
- Check humidity within the crop.
- Inspect leaves for signs of fungal growth.
Sticky leaves, stunted growth, small green or black insects on young shoots
Possible causes: Aphids
- Check young shoots and leaf undersides for insect infestation.
- Look for honeydew and ants.
FAQ
When is the best time to sow Mizuna?
The best time to sow Mizuna is in spring (March/April) and late summer/autumn (August/September). It prefers cooler temperatures and can bolt quickly in heat.
How often does Mizuna need to be watered?
Mizuna requires consistent moisture. Keep the soil constantly moist but not waterlogged, especially during dry spells and heat, to prevent bolting and bitterness.
Can Mizuna grow in shade?
Mizuna prefers full sun in spring and autumn. However, in hot summer, it can benefit from partial shade to prevent premature bolting and leaf scorch. Deep shade can slow growth.
What pests most commonly affect Mizuna?
Common pests include flea beetles (causing small holes in leaves), slugs (eating holes and entire leaves), and aphids (sucking plant sap and potentially transmitting viruses).
Is Mizuna safe for Dog?
Mizuna is classified as moderation only for Dog. Risk: unknown. Urgency: observe. Mizuna is edible for dogs in moderation and used as a leafy vegetable. Young leaves and stems are tender and mild. No known toxic compounds that are harmful in normal amounts. As part of the Brassica family, it contains glucosinolates which are harmless in normal amounts. Excessive consumption may cause mild gastrointestinal upset due to fiber content. Feed fresh and washed, introduced in small amounts for…
Is Mizuna safe for Cat?
Mizuna is classified as moderation only for Cat. Risk: unknown. Urgency: observe. Mizuna is suitable for cats in small amounts as a treat. Young leaves and stems are preferred. Overconsumption may cause gastrointestinal upset. No known toxic compounds in edible parts.
Is Mizuna safe for Rabbit?
Mizuna is classified as moderation only for Rabbit. Risk: unknown. Urgency: observe. Mizuna is suitable for rabbits in moderation and can be fed as part of their regular diet. Young leaves and stems are particularly suitable. As with all fresh feeds, a gradual introduction is recommended to avoid digestive upset.
Is Mizuna safe for Guinea pig?
Mizuna is classified as moderation only for Guinea pig. Risk: unknown. Urgency: observe. 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. Mizuna is suitable in moderation.
Guides
Related guides
Guide
Rabbits in the Garden: Herbs and Vegetables
Learn how to choose suitable herbs and vegetables for rabbits, grow feeding plants, and plan a rabbit-friendly garden.
Guide
Chickens in the Garden: Safe Plants and Zones
Learn how to design a chicken-friendly garden with suitable plants, protected beds, and well-planned activity areas.
Guide
Dogs in the Garden: Windfall Fruit and Risks
Keep your garden dog-safe by managing windfall fruit, seeds, stored crops, and potentially problematic plant parts.
Guide
Horse Pastures and Garden Plants: Safety Checks
Learn how to identify risks near horse pastures, fences, turnout areas, fruit trees, and garden planting zones.
Internal links
Related plants
Cabbage
Both belong to the Brassicaceae family.
Shares the Brassicaceae family and many pests/diseases.
Radish
Both belong to the Brassicaceae family.
Shares the Brassicaceae family and many pests/diseases.
Asian Leafy Greens
Mizuna is a typical Asian leafy green.
Clubroot
Mizuna is susceptible to clubroot, as are other brassicas.
Spinach
Both are medium feeders and benefit from organic fertilization.
Often used raw in salads and has similar growing conditions.
Lettuce
Both require consistent moisture for tender leaves and to prevent bolting.
Bok choy
Belongs to the same family (Brassicaceae) and is cultivated similarly.
Tatsoi
Another Asian leafy green from the Brassicaceae family.
Arugula
Peppery flavor, used raw in salads.
Sources
Public sources
- Wikidata entity
Wikidata · 2026-05-14
- GBIF species match
GBIF · 2026-05-14
- English Wikipedia: Mizuna
Wikipedia · 2026-05-14