Plant Profile

Napa cabbageBrassica rapa subsp. pekinensis

Napa cabbage is a favorite for the late summer garden. With an extremely short cultivation period of often just 60 to 80 days, it efficiently fills the gaps left by summer vegetables. Its mild flavor and tender leaf structure make it one of the most digestible members of the brassica family. Unlike head cabbage, however, it requires a very consistent water supply and a precise sowing time starting in late June to prevent the dreaded premature bolting (flowering).

Napa cabbage (Brassica rapa subsp. pekinensis): plant portrait - Leafy vegetables, Mustard family, Harvest September
Napa cabbage: plant portrait. harvest: September - November.

Quick profile

Key data

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

Good neighbors

PeasSpinachtomato

Avoid

Other brassicasOnion

Indoor & direct sowing

Napa cabbage: Sowing and germination

Indoor sowing

Indoor starting possible for late harvests, but direct sowing is preferred.

Direct sowing outdoors

Main sowing window for autumn harvest; risk of bolting if sown too early.

Seed depth1 - 2 cm
Germination temp15 - 25 °C
Germination time5 - 12 days
Light germinatorNo
Dark germinatorYes
Cold germinatorNo
Stratification neededNo
Pre-soaking recommendedNo

Planting & site

Napa cabbage: Planting and spacing

Planting outdoors

Transplant seedlings carefully to avoid root stress.

Plant spacing30 - 40 cm
Row spacing40 - 50 cm
Plants per m²6 - 9 per m²
Bed widthfrom 100 cm

Site & practical notes

Topic: bolting_prevention, Title: Preventing Bolting, Content: Never sow napa cabbage before the summer solstice (June 21st). Decreasing day length signals the plant to form heads instead of flowers.

Temperature & frost

Napa cabbage: Temperature and site

Growing temperaturefrom 12 °C
Optimal temperature16 - 22 °C
Max. heatup to 28 °C
Soil temperature15 - 20 °C
Frost sensitiveYes
Late frost sensitiveYes
Heat tolerancelow
Cold tolerancemedium

Water & nutrients

Napa cabbage: Water, nutrients and care

Waterhigh
Critical water phasesHead formation
Watering methodSoak from below
Droughthigh
Waterlogging sensitiveYes
Mulching recommendedYes
Nutrient needheavy feeder
Compost recommendedYes
Fertilizer sensitivitymedium

Container & growth

Napa cabbage: Container, support and growth

Container suitableYes
Pot sizeVolume: from 10 l; Recommended: from 15 l; Diameter: from 30 cm; Depth: from 25 cm
SupportNo
Height30 - 50 cm
Width20 - 35 cm
Root depth20 - 40 cm
Root spread15 - 30 cm
Yield1 - 3 kg

Year plan

Napa cabbage Calendar

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

Recurring tasks

Crop maintenance and bolting controlJuly - September
Regularly check for bolting to direct energy into head formation.

Relevant now

June

  • SowingDo not sow before late June to prevent bolting.

Next up

July

  • No additional single task

Monthly tasks

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

Direct sowingHarvest

January

Quiet month

February

Quiet month

March

Quiet month

April

Quiet month

May

Quiet month

June

Sowing

Direct sowing

  • SowingDo not sow before late June to prevent bolting.

July

No additional single task

August

No additional single task

September

No additional single task

October

Harvest

Harvest

  • HarvestHarvest heads during dry weather for better shelf life.

November

No additional single task

December

Quiet month

Flowering & pollination

Napa cabbage Flowering & pollination

Flowering period

May to June (in the second year or if premature bolting occurs)

Flower color

Yellow

Self-fertility

self-incompatible

Pollinator needed

yes

Overview

Cross-pollination by insects (bees, hoverflies); isolation required for seed saving.

Notes

Usually grown as an annual for vegetable harvest without flowering; seed plants are strictly cross-pollinating.

Pruning & care

Napa cabbage Pruning & care

Pruning type

herbaceous_annual

Pruning timing

Growth period

Crop maintenance and bolting control Regularly check for bolting to direct energy into head formation.

Remove

Preserve

Avoid

Tools and hygiene

Use sharp, clean knives to avoid crushing the stalk.

Companion guide

Napa cabbage Companion guide

Companion guide

Good neighbors

PeasSpinachtomato

Avoid

Other brassicasOnion

Use & storage

Napa cabbage Use & storage

Harvest

Harvest before hard frosts; only tolerates light frost.

Storage

Short to medium-term storage

Storage life

4 weeks (refrigerator) up to 3 months (optimal storage cellar)

Primary use

Fresh consumption and fermentation

Flavor

Mild, subtle cabbage flavor, slightly sweet

Harvest

Harvest before hard frosts; only tolerates light frost.

Processing

After harvest

Do not wash if storage is intended; leave outer leaves on for protection.

Edibility & safety

Napa cabbage Edibility & safety

For people

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

Edible parts:Leaves, Leaf ribs, Heart
Caution parts:Roots
Raw consumption:Excellent for raw consumption.

Safety notes

Non-toxic; very easily digestible, causes less bloating than other brassicas.

Animal safety

For many animals, this plant is generally low-risk: 13 animal types are rated suitable or mostly suitable. Quantity, plant part, and individual tolerance still matter.

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

Leaves, Leaf ribs

No risk parts listed

Risk factors

Overconsumption may cause gas or bloating

usually no action needed

Napa cabbage is considered safe for dogs in normal amounts. It is easily digestible and causes less bloating than other brassicas. However, it should only be fed as a supplement, not as a main food. If signs of intolerance such as gas or diarrhea appear, reduce or discontinue feeding.

Open animal page
Cat icon for animal safety ratingCat

Leaves, Leaf ribs

No risk parts listed

Risk factors

Overconsumption may cause gastrointestinal upset

observe

Napa cabbage is suitable for cats in small amounts as a treat. The leaves are non-toxic, but overconsumption may cause mild gastrointestinal upset. Roots should be avoided.

Open animal page
Rabbit icon for animal safety ratingRabbit

Leaves, Leaf ribs

No risk parts listed

Risk factors

Overfeeding may cause bloating

usually no action needed

Napa cabbage is suitable for rabbits and is commonly fed as part of a balanced diet. It causes less bloating than other brassicas and is well tolerated. As with all fresh feeds, a gradual introduction is recommended to avoid digestive upset.

Open animal page
Guinea pig icon for animal safety ratingGuinea pig

Leaves, Leaf ribs

No risk parts listed

usually no action needed

Napa cabbage is safe for guinea pigs and can be fed as part of a balanced diet. It causes less bloating than other brassicas and is very easily digestible.

Open animal page
Hamster icon for animal safety ratingHamster

Leaves, Leaf ribs

No risk parts listed

usually no action needed

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

Open animal page
Budgie icon for animal safety ratingBudgie

Leaves, Leaf ribs

No risk parts listed

usually no action needed

Napa cabbage is safe for budgies and can be fed as part of a balanced diet. The leaves, leaf ribs, and heart are edible and well tolerated. Roots should be avoided as they are not typically consumed and may contain soil or contaminants. No poisoning symptoms are expected with normal feeding.

Open animal page

Farm animals

Horse icon for animal safety ratingHorse

Leaves, Leaf ribs

No risk parts listed

usually no action needed

Napa cabbage (Chinese cabbage) is safe for horses and valued as a nutritious, easily digestible feed. It causes less bloating than other brassicas and can be fed regularly. Roots should be avoided as they are not suitable for consumption.

Open animal page
Chicken icon for animal safety ratingChicken

Leaves, Leaf ribs

No risk parts listed

usually no action needed

Napa cabbage is safe for chickens and valued as nutritious green feed. The leaves are easily digestible and cause less bloating compared to other brassicas. As part of a balanced diet, it can be fed regularly.

Open animal page
Duck icon for animal safety ratingDuck

Leaves, Leaf ribs

No risk parts listed

usually no action needed

Napa cabbage is safe for ducks and valued as nutritious green feed. The leaves are easily digestible and cause less bloating compared to other brassicas. As part of a balanced diet, it can be fed regularly.

Open animal page
Goose icon for animal safety ratingGoose

Leaves, Leaf ribs

No risk parts listed

usually no action needed

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

Open animal page
Sheep icon for animal safety ratingSheep

Leaves, Leaf ribs

No risk parts listed

usually no action needed

Napa cabbage (Chinakohl) is suitable as feed for sheep and is considered non-toxic. It causes less bloating than other brassicas and is very easily digestible. Leaves, leaf ribs, and the heart can be fed regularly as part of a balanced diet. Roots should be avoided as they are not typically consumed and may be harder to digest. Overconsumption may lead to mild bloating, but serious poisoning symptoms are not…

Open animal page
Goat icon for animal safety ratingGoat

Leaves, Leaf ribs

No risk parts listed

Risk factors

Overfeeding may cause bloat

usually no action needed

Napa cabbage is safe for goats and valued as nutritious feed. All above-ground parts are edible and well-tolerated. Roots should be avoided as they are not part of typical forage and may be difficult to digest. No known risks with normal feeding. Overconsumption may cause bloat, as with many brassicas.

Open animal page
Cattle icon for animal safety ratingCattle

Leaves, Leaf ribs

Roots

Risk factors

Overfeeding may cause bloat

observe

Napa cabbage is safe for cattle in moderation, particularly the leaves and heart. Roots should be avoided as they may be difficult to digest. Overfeeding poses a bloat risk.

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

Napa cabbage Saving seed

Seed viability

3 - 5 years

Practical tips

Napa cabbage Practical tips

Common beginner mistakes

Sowing in May almost always leads to flowering plants without heads.

Success pattern

Sowing in mid-July, regular watering, and fleece covering against flea beetle infestation.

High-impact tips

Apply crop protection netting immediately after planting.

Grower observations

In dry summers, a mulch layer of grass clippings is worth its weight in gold.

Plant Profile

Additional plant images

Napa cabbage (Brassica rapa subsp. pekinensis): whole plant for plant portrait - Leafy vegetables, Mustard family, Harvest
Napa cabbage: plant portrait. harvest: September - November.

Health

Pests, Diseases

Diagnosis help

Napa cabbage Diagnosis help

Pest groups

Disease groups

Prevention

Diagnosis

Always check the roots of wilting plants for clubroot.

Cultural prevention

Monitoring

First response

Diagnostic rules

Head does not form, plant shoots upwards.

Possible causes: Bolting, Excessive day length

  • Check sowing date
  • Check for temperature extremes

FAQ

Why isn't my napa cabbage forming a head?

This is usually due to early sowing (before July) or extreme heat. The plant then 'bolts' directly into flower.

Is Napa cabbage safe for Dog?

Napa cabbage is classified as suitable for Dog. Risk: unknown. Urgency: usually no action needed. Napa cabbage is considered safe for dogs in normal amounts. It is easily digestible and causes less bloating than other brassicas. However, it should only be fed as a supplement, not as a main food. If signs of intolerance such as gas or diarrhea appear, reduce or discontinue feeding.

Is Napa cabbage safe for Cat?

Napa cabbage is classified as moderation only for Cat. Risk: unknown. Urgency: observe. Napa cabbage is suitable for cats in small amounts as a treat. The leaves are non-toxic, but overconsumption may cause mild gastrointestinal upset. Roots should be avoided.

Is Napa cabbage safe for Rabbit?

Napa cabbage is classified as suitable for Rabbit. Risk: unknown. Urgency: usually no action needed. Napa cabbage is suitable for rabbits and is commonly fed as part of a balanced diet. It causes less bloating than other brassicas and is well tolerated. As with all fresh feeds, a gradual introduction is recommended to avoid digestive upset.

Is Napa cabbage safe for Guinea pig?

Napa cabbage is classified as suitable for Guinea pig. Risk: unknown. Urgency: usually no action needed. Napa cabbage is safe for guinea pigs and can be fed as part of a balanced diet. It causes less bloating than other brassicas and is very easily digestible.

Sources

Public sources

  1. Wikidata entity

    Wikidata · 2026-05-12

  2. GBIF species match

    GBIF · 2026-05-12

  3. Deutschsprachige Wikipedia: Chinakohl

    Wikipedia · 2026-05-12

  4. English Wikipedia: Napa cabbage

    Wikipedia · 2026-05-12

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