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Annual Biennial

Brassica oleracea (Italica Group) 'Green Magic'
  • RHS AGM

calabrese 'Green Magic'

A hardy biennial grown as an annual vegetable. A reliable cultivar grown for its edible rich green heads with superior performance and a sweet flavour. It shows good resistance to white rust

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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
Moisture
Moist but well–drained, Well–drained
pH
Neutral, Alkaline
Colour & scent
StemFlowerFoliageFruit
Spring Green
Summer Green Green
Autumn Green 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 fertile, well compacted, non-acid soil in full sun. Sow between March-June at a depth of 1cm and 30cm apart. See calabrese cultivation for more detailed advice

Propagation

Propagate by seed. See sowing vegetable seeds or sowing seeds indoors for further advice

Suggested planting locations and garden types
Pruning

No pruning required

Pests

May be susceptible to birds, cabbage caterpillar, cabbage whitefly, cabbage root fly, cutworms, flea beetle, mealy cabbage aphid, slugs and snails, swede midge

Diseases

May be susceptible to black rot, club root, downy mildew, grey mould, leaf spot, white blister

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