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Annual Biennial

Brassica oleracea (Gongylodes Group) 'Korist'
  • RHS AGM

kohlrabi 'Korist'

A hardy biennial grown as an annual vegetable. A globe shaped green variety with a white flesh that is juicy and has a mild, sweet flavour. It has a long holding ability and shows excellent resistance to downy mildew

Size
Ultimate height
0.1–0.5 metres
Time to ultimate height
1 year
Ultimate spread
0.1–0.5 metres
Growing conditions
Loam
Sand
Chalk
Moisture
Well–drained
pH
Alkaline, Neutral
Colour & scent
StemFlowerFoliageFruit
Spring Green
Summer Green
Autumn Green
Winter
Position
  • Full sun
Aspect

South–facing or West–facing

Exposure
Sheltered
Hardiness
H3
Botanical details
Family
Brassicaceae
Native to the UK
No
Foliage
Deciduous
Habit
Clump forming
Genus

Brassicas can be annual, biennial or perennial plants, most are upright with alternate, often glaucous leaves, long taproots and clusters of cross-shaped, yellow or white flowers. The genus includes a number of species bred to produce food crops, such as cabbages, turnips, mustards and oilseed rape, as well as others grown for their ornamental value

Name status

Accepted

How to grow

Cultivation

Grow in light, non-acid, free draining soil in full sun. Green varieties can be sown early. Sow seed direct from March to July, 1.5cm deep in drills 30cm apart, thin out to 15cm between each plant. Or start indoors and transplant out in May-June. See Vegetable Cultivation

Propagation

Propagate by seed. See sowing vegetable seeds

Suggested planting locations and garden types
Pruning

No pruning required

Pests

May be susceptible to birds, cabbage caterpillars, cabbage whitefly, cabbage root fly, cutworms, flea beetle, slugs and snails

Diseases

May be susceptible to black rot, club root and leaf spot

Get involved

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