Plant Profile

Swiss ChardBeta vulgaris subsp. vulgaris Cicla Group

Swiss chard is a versatile powerhouse in the vegetable garden. Whether grown as colorful stalk chard or delicate leaf beet, it provides fresh greens from spring until late autumn. Its robustness against light frosts makes it an ideal candidate for year-round self-sufficiency.

Swiss Chard (Beta vulgaris subsp. vulgaris Cicla Group): plant portrait - Leafy vegetables, Amaranth family, Harvest May
Swiss Chard: plant portrait. harvest: May - November.

Quick profile

Key data

Growing calendar
JanFebMarAprMayJunJulAugSepOctNovDec
Indoor sowing
Direct sowing outdoors
Planting outdoors
Harvest
Pruning
Indoor sowingDirect sowing outdoorsPlanting outdoorsHarvestPruning

Good neighbors

CabbageOnionBush beans

Avoid

SpinachBeetroot

Indoor & direct sowing

Swiss Chard: Sowing and germination

Indoor sowing

Pre-culture possible for early harvest starting in April.

Direct sowing outdoors

Direct sowing from mid-April; sow until August for overwintering.

Seed depth2 - 3 cm
Germination temp10 - 25 °C
Germination time10 - 14 days
Light germinatorNo
Dark germinatorYes
Cold germinatorNo
Stratification neededNo
Pre-soaking recommendedYes

Planting & site

Swiss Chard: Planting and spacing

Planting outdoors

Harden off before planting out; tolerates light frosts.

Plant spacing25 - 40 cm
Row spacing30 - 45 cm
Plants per m²6 - 9 per m²
Bed widthfrom 120 cm

Site & practical notes

Cultivation tip: Sow chard in successions every 4 weeks to ensure tender young leaves throughout the summer.

Temperature & frost

Swiss Chard: Temperature and site

Growing temperaturefrom 5 °C
Optimal temperature15 - 20 °C
Max. heatup to 30 °C
Soil temperature10 - 15 °C
Frost sensitiveNo
Late frost sensitiveNo
Heat tolerancemedium
Cold tolerancehigh

Water & nutrients

Swiss Chard: Water, nutrients and care

Waterhigh
Critical water phasesGermination phase, Main growth phase in summer
Watering methodWater only at the base
Droughthigh
Waterlogging sensitiveYes
Mulching recommendedYes
Nutrient needheavy feeder
Compost recommendedYes
Fertilizer sensitivitymedium

Container & growth

Swiss Chard: Container, support and growth

Container suitableYes
Pot sizeVolume: from 10 l; Recommended: from 15 l; Diameter: from 30 cm; Depth: from 25 cm
Height30 - 60 cm
Width30 - 50 cm
Root depth30 - 50 cm

Year plan

Swiss Chard Calendar

Plants
Year overview
JanFebMarAprMayJunJulAugSepOctNovDec
Indoor sowing
Direct sowing outdoors
Planting outdoors
Harvest
Pruning

Recurring tasks

Direct sowingApril - June
Sowing depth approx. 2-3 cm.
ThinningMay - June
Thin plants to a distance of 25-30 cm.
Continuous harvest and vitalizationMay - October
Regular picking encourages new growth from the heart.
Winter preparationOctober - November
Remove dead leaves to prevent rot during wintering.

Relevant now

June

  • No additional single task

Next up

July

  • No additional single task

Monthly tasks

Single tasks from monthly data; repeated seasonal windows are shown in the overview above.

January

Quiet month

February

No additional single task

March

No additional single task

April

No additional single task

May

No additional single task

June

No additional single task

July

No additional single task

August

No additional single task

September

No additional single task

October

No additional single task

November

No additional single task

December

Quiet month

Flowering & pollination

Swiss Chard Flowering & pollination

Flowering period

June to August (in the second year)

Flower type

Inconspicuous clustered flowers in long spikes

Flower color

Greenish to yellowish

Self-fertility

partially self-fertile

Pollinator needed

no

Overview

Primarily wind-pollinated; cross-pollination with other Beta beets is possible.

Notes

Insects visit the flowers occasionally but play a minor role in fruit set.

Pruning & care

Swiss Chard Pruning & care

Pruning type

continuous_outer_leaf_removal

Pruning timing

Growing season

Continuous harvest and vitalization Regular picking encourages new growth from the heart.

Late autumn

Winter preparation Remove dead leaves to prevent rot during wintering.

Remove

Preserve

Avoid

Tools and hygiene

Use clean knives to minimize the transmission of leaf spot diseases.

Companion guide

Swiss Chard Companion guide

Companion guide

Good neighbors

CabbageOnionBush beans

Avoid

SpinachBeetroot

Use & storage

Swiss Chard Use & storage

Harvest

Continuous harvest of outer leaves encourages new growth.

Storage

Short-term storage (fresh vegetable)

Storage life

2 to 4 days in the refrigerator

Primary use

Cooked vegetable

Harvest

Continuous harvest of outer leaves encourages new growth.

Processing

After harvest

Store leaves in a cool place after harvest or process immediately as they wilt quickly.

Edibility & safety

Swiss Chard Edibility & safety

For people

In brief: which parts are edible, which parts remain risky, and whether raw consumption makes sense.

Edible parts:Leaves, Stalks
Caution parts:Root (edible but woody), Seeds
Raw consumption:Possible in small amounts (young leaves in salads), usually consumed cooked.

Safety notes

Contains oxalic acid and nitrates; people prone to kidney stones should consume in moderation.

Animal safety

The evidence for this plant and animals is still limited. Check the detail rows before allowing access or feeding.

Animal safety by plant part

Each row shows which parts are more suitable and which parts are critical.

Companion animals

Dog icon for animal safety ratingDog

No suitable parts listed

No risk parts listed

unknown

No reliable species-specific assessment is available.

Open animal page
Cat icon for animal safety ratingCat

No suitable parts listed

No risk parts listed

unknown

No reliable species-specific assessment is available.

Open animal page
Rabbit icon for animal safety ratingRabbit

No suitable parts listed

No risk parts listed

unknown

No reliable species-specific assessment is available.

Open animal page
Guinea pig icon for animal safety ratingGuinea pig

No suitable parts listed

No risk parts listed

unknown

No reliable species-specific assessment is available.

Open animal page
Hamster icon for animal safety ratingHamster

No suitable parts listed

No risk parts listed

unknown

No reliable species-specific assessment is available.

Open animal page
Budgie icon for animal safety ratingBudgie

No suitable parts listed

No risk parts listed

unknown

No reliable species-specific assessment is available.

Open animal page

Farm animals

Horse icon for animal safety ratingHorse

No suitable parts listed

No risk parts listed

unknown

No reliable species-specific assessment is available.

Open animal page
Chicken icon for animal safety ratingChicken

No suitable parts listed

No risk parts listed

unknown

No reliable species-specific assessment is available.

Open animal page
Duck icon for animal safety ratingDuck

No suitable parts listed

No risk parts listed

unknown

No reliable species-specific assessment is available.

Open animal page
Goose icon for animal safety ratingGoose

No suitable parts listed

No risk parts listed

unknown

No reliable species-specific assessment is available.

Open animal page
Sheep icon for animal safety ratingSheep

No suitable parts listed

No risk parts listed

unknown

No reliable species-specific assessment is available.

Open animal page
Goat icon for animal safety ratingGoat

No suitable parts listed

No risk parts listed

unknown

No reliable species-specific assessment is available.

Open animal page
Cattle icon for animal safety ratingCattle

No suitable parts listed

No risk parts listed

unknown

No reliable species-specific assessment is available.

Open animal page
Pig icon for animal safety ratingPig

No suitable parts listed

No risk parts listed

unknown

No reliable species-specific assessment is available.

Open animal page

These 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

not established

Urgency

unknown

Saving seed

Swiss Chard Saving seed

Seed type

Seed ball (multiple seeds per fruit)

Seed viability

4 - 5 years

Practical tips

Swiss Chard Practical tips

Common beginner mistakes

Harvesting too deep: if the heart is damaged, the plant won't regrow.

Success pattern

Regularly picking the outer leaves leads to an almost inexhaustible harvest.

High-impact tips

A layer of mulch keeps the soil moist and suppresses weeds extremely effectively.

Grower observations

Red-stalked chard varieties tend to bolt more easily in dry summers than green varieties.

Plant Profile

Additional plant images

Swiss Chard (Beta vulgaris subsp. vulgaris Cicla Group): whole plant for plant portrait - Leafy vegetables, Amaranth family
Swiss Chard: plant portrait. harvest: May - November.
Swiss Chard (Beta vulgaris subsp. vulgaris Cicla Group): whole plant for plant portrait - Leafy vegetables, Amaranth family
Swiss Chard: plant portrait. harvest: May - November.

Health

Pests, Diseases

Diagnosis help

Swiss Chard Diagnosis help

Pest groups

Disease groups

Prevention

Diagnosis

Spots on leaves are usually fungal; galleries inside leaves indicate leaf miners.

Cultural prevention

Monitoring

Weekly aphid checks starting in May

First response

Diagnostic rules

White or brown tunnels in leaves

Possible causes: Pegomya hyoscyami

  • Check underside of leaves for egg clusters

FAQ

Can Swiss chard be left outside in winter?

Yes, chard is semi-hardy. With fleece or brushwood protection, it survives mild winters and regrows in early spring.

Why is my Swiss chard bolting so fast?

Often it's due to lack of water or heat spells. Cold stimuli shortly after germination can also trigger bolting.

Is Swiss Chard safe for Dog?

Swiss Chard is classified as not established for Dog. Risk: unknown. Urgency: unknown. No reliable species-specific assessment is available.

Is Swiss Chard safe for Cat?

Swiss Chard is classified as not established for Cat. Risk: unknown. Urgency: unknown. No reliable species-specific assessment is available.

Is Swiss Chard safe for Rabbit?

Swiss Chard is classified as not established for Rabbit. Risk: unknown. Urgency: unknown. No reliable species-specific assessment is available.

Is Swiss Chard safe for Guinea pig?

Swiss Chard is classified as not established for Guinea pig. Risk: unknown. Urgency: unknown. No reliable species-specific assessment is available.

Sources

Public sources

  1. Wikidata entity

    Wikidata · 2026-05-14

  2. GBIF species match

    GBIF · 2026-05-14

  3. Deutschsprachige Wikipedia: Mangold

    Wikipedia · 2026-05-14

  4. Wikidata entity

    Wikidata · 2026-05-14

  5. GBIF species match

    GBIF · 2026-05-14

  6. Deutschsprachige Wikipedia: Futterrübe

    Wikipedia · 2026-05-14

  7. English Wikipedia: Mangelwurzel

    Wikipedia · 2026-05-14

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