Brassica oleracea (Acephala Group) 'Yurok'

RHS Plant Profile

curly kale 'Yurok'

Annual Biennial

A leafy biennial usually grown for its edible leaves. This curly kale cultivar produces short, uniform plants with rosettes of very dark green leaves with small blisters. Leaves can be harvested from September right through to February

Position

Full sun, Partial shade

Soil Types

Chalk, Clay, Loam, Sand

Max Height

0.5-1 metres

Max Spread

0.5-1 metres

Size

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

Growing Conditions

Chalk Clay Loam Sand

Moisture: Moist but well–drained
pH: Alkaline or Neutral

Position

Full sun Partial shade

Aspect: East–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): H5

Colour & Scent

Season	Stem	Flower	Foliage	Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family: Brassicaceae
Native to GB/Ireland: No
Foliage: Evergreen
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: Unresolved

How to Grow

Cultivation

Prefers well drained, alkaline soil. Water regularly in dry periods and add a mulch. See the RHS A-Z guides to vegetable cultivation for more detailed advice

Propagation

Propagate by seed. See sowing vegetable seeds

Pruning

Remove young leaves from the main crown from mid-autumn onwards. Side shoots can be harvested from mid-winter until late spring

Pests

May be susceptible to cabbage caterpillars, cabbage root fly, cabbage whitefly, mealy cabbage aphids, flea beetles and slugs and snails

Diseases

May be susceptible to black rot, downy mildew, foot and root rot, grey moulds, leaf spot and white blister