calabrese 'Ironman'

Brassica oleracea (Italica Group) 'Ironman'

★ RHS AGM

Genus: Brassica
Family: Brassicaceae

About this plant

A hardy biennial grown as an annual. A top performing calabrese, popular for use by commercial growers because of its long cropping period between May-October, producing uniform blue-green edible, domed heads. This variety crops quickly, ready to harvest 75 days from transplanting. It shows good tolerance to hollow stem and resistance to bolting

Growing Information

Spread

0.5-1 Metres

Hardiness

Foliage

Deciduous

Growing Conditions

Sunlight

Full Sun

Soil

LoamSandy

AlkalineNeutral

Not Currently Available

This plant is not currently stocked at any garden centres on our platform.

Moisture

Well DrainedPoorly Drained

Aspect

East FacingWest Facing

Exposure

Exposed

Care Guide

Cultivation

Grow in fertile, well-compacted, non-acid soil in full sun. Sow between March and June at a depth of 1cm and spaced 30cm apart. See Vegetable Cultivation

Pruning

No pruning required

Propagation

Propagate by seed

Pests

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

Diseases

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

Garden Uses

Season of Interest

SpringSummerAutumn

Size & Characteristics

Spread

0.5-1 Metres

Habit

Clump Forming

Time to Full Height

One To Two Years