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Annual Biennial

Brassica oleracea (Italica Group) 'Tyrian'

purple sprouting broccoli 'Tyrian'

A summer sprouting broccoli which has purple stems as well as purple flowers. Sow early Feb to late May for harvesting from late April to late October, depending on sowing time. Excellent flavour and texture whether eaten raw or cooked

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Ultimate height

0.5–1 metres

Time to ultimate height

1–2 years

Ultimate spread

0.5–1 metres

Chalk

Clay

Loam

Sand

Moisture

Moist but well–drained

pH

Alkaline, Neutral

	Stem	Flower	Foliage	Fruit
Spring
Summer
Autumn
Winter

Full sun

Aspect

East–facing or North–facing or South–facing or West–facing

Exposure

Exposed or Sheltered

Hardiness
Hardiness ratings
All ratings refer to the UK growing conditions unless otherwise stated. Minimum temperature ranges (in degrees C) are shown in brackets
H1a: under glass all year (>15C)
H1b: can be grown outside in the summer (10 - 15)
H1c: can be grown outside in the summer (5 - 10)
H2: tolerant of low temperatures, but not surviving being frozen (1 to 5)
H3: hardy in coastal and relatively mild parts of the UK (-5 to 1)
H4: hardy through most of the UK (-10 to -5)
H5: hardy in most places throughout the UK even in severe winters (-15 to -10)
H6: hardy in all of UK and northern Europe (-20 to -15)
H7: hardy in the severest European continental climates (< -20)

Botanical details

Family: Brassicaceae
Native to GB / Ireland: No
Foliage: Evergreen or Semi 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 or very light shade. Where possible, avoid growing brassicas in the same soil year on year, to prevent the build up of soil-borne diseases. See broccoli cultivation for more detailed advice

Propagation

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

Pruning

No pruning required

Pests

May be susceptible to flea beetle, cabbage root fly, caterpillars, pigeons and snails, although once plants are established, this damage isn't usually severe. Heavy infestations of mealy cabbage aphid may also spoil the harvest

Diseases

May be susceptible to brassica downy mildew and brassica white blister. In areas where brassicas have been grown before, club root can build up in the soil

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