Daucus carota 'Primo'

RHS Plant Profile
carrot 'Primo'

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A fast-growing, early cropping variety producing reliable crops of smooth richly coloured roots with a good resistance to bolting. Good flavour and small core. Can also be harvested early as baby carrots and sown in containers and small spaces. Sow March to July, harvest May to November.

Position

Full sun

Soil Types

Clay, Loam, Sand

Max Height

0.1-0.5 metres

Max Spread

0.1-0.5 metres

Size

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

Growing Conditions

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

Position

Full sun
Aspect
South–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)
H4

Colour & Scent

Season Stem Flower Foliage Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family
Apiaceae
Native to GB/Ireland
No
Foliage
Deciduous
Habit
Clump forming
Genus
Daucus are more commonly known as wild carrot, a group of herbaceous, biennial (although not always) plants which can reach a height of between 30 to 60cm. The triangular shaped leaves are tripinnate, divided and lacy and flowers begin in pink buds, opening into small and white clustered together in dense umbels. The fruit is small, hairy and lumpy.
Name Status
Accepted

How to Grow

Cultivation

Grow in an open, sunny position with deeply cultivated, well-drained soil; heavy clay or stony soils may cause carrots to fork so it is best to make sure you have removed as many stones as possible and for clay soils add plenty of organic matter, such as well rotted manure. To reduce chances of harvesting forked carrots in clay soil choose a short-rooted cultivar. Keep seeds well-watered until your seedlings have emerged. You can also sow seeds in containers, especially if you select a cultivar with a shorter root. Harvest carrots from May until November. For more advice, see carrots cultivation.

Propagation

Propagate by seed. See sowing vegetable seeds

Suggested planting locations and garden types

  • Cottage and informal garden
  • Wildlife gardens

Pruning

No pruning required

Pests

Roots may be susceptible to carrot fly larvae, wireworm, slugs and rodents; foliage may be susceptible to aphids. A barrier of fine insect mesh at least 60cm high around the beds can help prevent carrot fly laying eggs.

Diseases

Generally disease-free although may be susceptible to carrot leaf blight in wet conditions during the growing season.