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Annual Biennial

Brassica oleracea (Gemmifera Group) 'Clodius'
  • RHS AGM

Brussels sprout 'Clodius'

A biennial leafy vegetable, usually grown as an annual for its edible buds. Produces strong stems to 90cm high, that stand well over winter, with firm, bright green buttons with a sweet flavour. Ready to harvest from December to mid-February depending on sowing time

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

South–facing or West–facing

Exposure
Sheltered
Hardiness
H5
Botanical details
Family
Brassicaceae
Native to the UK
No
Foliage
Evergreen
Habit
Columnar upright
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-drained soil in full sun, and protect from strong winds. Where possible, avoid growing brassicas in the same soil year on year, to prevent the build up of soil-borne diseases. See the RHS A-Z Guides to vegetable cultivation for more detailed advice

Propagation

Propagate by seed. See sowing vegetable seeds or sowing seeds indoors

Suggested planting locations and garden types
Pruning

No pruning required

Pests

May be susceptible to cabbage root fly, cabbage caterpillars, cabbage whitefly and mealy cabbage aphid

Diseases

May be susceptible to downy mildews, powdery mildews, and club root particularly in acidic soil

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