Raphanus sativus 'Black Spanish Round'

RHS Plant Profile
radish 'Black Spanish Round'

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radish 'Black Spanish Round' Michael John Day
Annual Biennial

A late-maturing heritage annual radish which is round with black skin and white flesh. Available to harvest in the autumn

Position

Full sun

Soil Types

Chalk, Clay, Loam, Sand

Max Height

Up to 10 cm

Max Spread

0.1-0.5 metres

Size

Time to Maturity
1 year
Max Spread
0.1-0.5 metres
Max Height
Up to 10 cm

Growing Conditions

Chalk Clay Loam Sand
Moisture
Moist but well–drained
pH
Acid or Alkaline or Neutral

Position

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)
H2

Colour & Scent

Season Stem Flower Foliage Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family
Brassicaceae
Native to GB/Ireland
No
Foliage
Deciduous
Habit
Tufted
Genus
Raphanus can be annual, biennial or perennial herbaceous plants, often with lyrate, glaucous leaves, small, four-petalled flowers and indehiscent fruits. Edible species are cultivated as annual vegetables (radish)
Name Status
Unresolved

How to Grow

Cultivation

Grow in any moisture-retentive soil as long as it isn't too acidic, in full sun. Extremely quick to harvest, so can be fitted into very short time-slots/limited spaces. For more advice see radish cultivation

Propagation

Propagate by seed. See sowing vegetable seeds

Pruning

No pruning required

Pests

May be susceptible to slugs and snails, and to flea beetles

Diseases

May be susceptible to brassica downy mildew