Brassica oleracea (Gemmifera Group) 'Igor'

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Brussels sprout 'Igor'

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Brussels sprout 'Igor' RHS
Brussels sprout 'Igor' RHS
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A mid- to late season cultivar producing smooth, dark green sprouts that are uniform in shape and size along the length of the sturdy stem that reaches up to 80cm tall

Position

Full sun

Soil Types

Loam, Sand

Max Height

0.5-1 metres

Max Spread

0.5-1 metres

Size

Time to Maturity
1–2 years
Max Spread
0.5-1 metres
Max Height
0.5-1 metres

Growing Conditions

Loam Sand
Moisture
Moist but well–drained or Well–drained
pH
Alkaline or Neutral

Position

Full sun
Aspect
South–facing or East–facing or West–facing
Exposure
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
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 a fertile, well drained soil in full sun and protected from strong winds. See Grow-your-own Brussels sprouts for further information

Propagation

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

Pruning

No pruning required

Pests

Cabbage root fly, caterpillars, cabbage whitefly and mealy cabbage aphid may cause problems

Diseases

May be susceptible to club root, downy mildews and powdery mildews