Brassica oleracea (Italica Group) 'Red Arrow'

RHS Plant Profile
broccoli (purple sprouting) 'Red Arrow'
Annual Biennial

Purple-sprouting broccoli to 90cm tall with good yields of purple florets flushed red, and excellent overall spear quality, with long season cropping.

Position

Full sun

Soil Types

Chalk, Loam, Sand

Max Height

0.5-1 metres

Max Spread

0.1-0.5 metres

Size

Time to Maturity
1 year
Max Spread
0.1-0.5 metres
Max Height
0.5-1 metres

Growing Conditions

Chalk Loam Sand
Moisture
Well–drained
pH
Alkaline or Neutral

Position

Full sun
Aspect
South–facing or West–facing or East–facing
Exposure
Sheltered
Hardiness
H4

Botanical Details

Family
Brassicaceae
Native to GB/Ireland
No
Foliage
Deciduous
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 well-drained soil to avoid winter waterlogging, in full sun with shelter from winds that may rock tall stems out of the ground. Space plants 60cm (24in) apart in both directions, and support the stems with stakes once they are tall enough. Water well during dry spells to keep soil moist and help avoid bolting. See broccoli cultivation for more detailed advice

Propagation

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

Pruning

Plants produce a number of small shoots and flowerheads which should be picked regularly over a long period, not all at once, to ensure a supply of shoots; cut stems once they are 15–20cm (6–8in) long, before the flower buds open, harvesting the top 8–10cm (3–4in)

Pests

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