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Brassica oleracea Alboglabra Group (Kai-lan)

Advanced
skill rating
4 hours care
per year
0.4m
Max height
0.2m
Max spread
1-2 years
To maturity

Plant details

Botanical name

Brassica oleracea Alboglabra Group

Other names

Kai-lan, Gai laan, Kailaan, Chinese broccoli, Chinese sprouting broccoli, Brassica oleracea var. alboglabra , Chinese kale

Genus

Brassica Brassica

Variety or Cultivar

Alboglabra Group _ Alboglabra Group are cultivated vegetable plants with thick, erect stems bearing flat, glossy, blue-green leaves and small, compact flowerheads.


Brassica oleracea Alboglabra Group is: Deciduous

Habit

Erect

Flower

Insignificant or absent in Summer

Foliage

Blue-green in Summer; Blue-green in Autumn

How to care

Watch out for

Specific pests

Birds , Cabbage caterpillars , Cabbage gall weevil , Cabbage root fly , Cabbage stem flea beetle , Cabbage whitefly , Chafer grubs in lawns , Cutworms , Diamond-back moth , Flea beetles , Mealy cabbage aphid , Slugs , Snails , Swede midge Birds , Cabbage caterpillars , Cabbage gall weevil , Cabbage root fly , Cabbage stem flea beetle , Cabbage whitefly , Chafer grubs in lawns , Cutworms , Diamond-back moth , Flea beetles , Mealy cabbage aphid , Slugs , Snails , Swede midge

Black rot , Clubroot , Downy mildew , Foot and root rot , Grey mould , Leaf spot , White blister Black rot , Clubroot , Downy mildew , Foot and root rot , Grey mould , Leaf spot , White blister

General care

Pruning

Harvest when main stalks are approx. 25cm tall and 2-3 flowers appear.

Propagation methods

Seed


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Where to grow

Brassica oleracea Alboglabra Group (Kai-lan) will reach a height of 0.4m and a spread of 0.2m after 1-2 years.

Suggested uses

Add to salads, Beds and borders, Flavouring food and drinks

Cultivation

Plant in neutral to alkaline, fertile, well-drained soil in full sun. Sow seeds outdoors in spring 4-6 weeks before last average frost date. Can be planted in late summer for autumn harves. Ready for harvest approx. 14 weeks after sowing.

Soil type

Loamy, Sandy

Soil drainage

Well-drained

Soil pH

Alkaline, Neutral

Light

Full Sun

Aspect

South, West

Exposure

Sheltered

UK hardiness Note: We are working to update our ratings. Thanks for your patience.

Hardy (H4), Tender in frost (H3)

Companion plants

We do not currently have companion plants added for this plant.

Botanical name

Brassica oleracea Alboglabra Group

Other names

Kai-lan, Gai laan, Kailaan, Chinese broccoli, Chinese sprouting broccoli, Brassica oleracea var. alboglabra , Chinese kale

Genus

Brassica Brassica

Variety or Cultivar

Alboglabra Group _ Alboglabra Group are cultivated vegetable plants with thick, erect stems bearing flat, glossy, blue-green leaves and small, compact flowerheads.

Foliage

Deciduous

Habit

Erect


Colour

Flower

Insignificant or absent in Summer

Foliage

Blue-green in Summer; Blue-green in Autumn


How to care

Watch out for

Specific pests

Birds , Cabbage caterpillars , Cabbage gall weevil , Cabbage root fly , Cabbage stem flea beetle , Cabbage whitefly , Chafer grubs in lawns , Cutworms , Diamond-back moth , Flea beetles , Mealy cabbage aphid , Slugs , Snails , Swede midge

Specific diseases

Black rot , Clubroot , Downy mildew , Foot and root rot , Grey mould , Leaf spot , White blister

General care

Pruning

Harvest when main stalks are approx. 25cm tall and 2-3 flowers appear.

Propagation methods

Seed


Monthly care advice


Where to grow

Brassica oleracea Alboglabra Group (Kai-lan) will reach a height of 0.4m and a spread of 0.2m after 1-2 years.

Suggested uses

Add to salads, Beds and borders, Flavouring food and drinks

Cultivation

Plant in neutral to alkaline, fertile, well-drained soil in full sun. Sow seeds outdoors in spring 4-6 weeks before last average frost date. Can be planted in late summer for autumn harves. Ready for harvest approx. 14 weeks after sowing.

Soil type

Loamy, Sandy

Soil drainage

Well-drained

Soil pH

Alkaline, Neutral

Light

Full Sun

Aspect

South, West

Exposure

Sheltered

UK hardiness Note: We are working to update our ratings. Thanks for your patience.

Hardy (H4), Tender in frost (H3)

Defra's Risk register #1

Plant name

Brassica oleracea Alboglabra Group (Kai-lan)

Common pest name

Cassava whitefly; Cotton whitefly; Sweet potato whitefly; Tobacco whitefly

Scientific pest name

Bemisia tabaci non-European populations

Type

Insect

Current status in UK

Absent

Likelihood to spread to UK (1 is very low - 5 is very high)

2

Impact (1 is very low - 5 is very high)

5

General biosecurity comments

Non-European populations of Bemisia tabaci pose an additional risk to European populations due to the potential for introducing non-European viruses.

Defra's Risk register #2

Plant name

Brassica oleracea Alboglabra Group (Kai-lan)

Common pest name

Leaf spot: ginseng; Leaf spot: ornamentals

Scientific pest name

Alternaria panax

Type

Fungus

Current status in UK

Absent

Likelihood to spread to UK (1 is very low - 5 is very high)

3

Impact (1 is very low - 5 is very high)

4

General biosecurity comments

A leaf spot disease; some commonly grown pot plants are hosts but main damage is to ginseng.

Defra's Risk register #3

Plant name

Brassica oleracea Alboglabra Group (Kai-lan)

Common pest name

Apple root knot nematode

Scientific pest name

Meloidogyne mali

Type

Nematode

Current status in UK

Unknown

Likelihood to spread to UK (1 is very low - 5 is very high)

3

Impact (1 is very low - 5 is very high)

4

General biosecurity comments

UK (along with certain other European countries) received potentially infested trees in 1992; but these were destroyed at the end of the trial period and targeted surveillance has failed to find any trace of the nematode. Main impacts are on elm; apple and mulberry and industry should source such material carefully.

About this section

Our plants are under greater threat than ever before. There is increasing movement of plants and other material traded from an increasing variety of sources. This increases the chances of exotic pests arriving with imported goods and travellers, as well as by natural means. Shoot is working with Defra to help members to do their part in preventing the introduction and spread of invasive risks.

Traveling or importing plants? Please read "Don't risk it" advice here

Suspected outbreak? Click here for contact details to report to the relevant authority.

Date updated: 7th March 2019 For more information visit: https://planthealthportal.defra.gov.uk/

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This plant likes... Garden match
Soil types: Loamy, Sandy Tell us...
Soil drainage: Well-drained Tell us...
Soil pH: Alkaline, Neutral Tell us...
Light: Full Sun Tell us...
Aspect: South, West Tell us...
Exposure: Sheltered Tell us...
Hardiness: Hardy (H4), Tender in frost (H3) Tell us...

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