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Last edited on 2 Nov 2026. View history

Whanganui giant carrot Whanganui Giant Carrot

Daucus carota

A variety of carrot

How to sow Whanganui giant carrot: Direct Seed, thin to 3cm apart when seedlings are 8cm high

Sun requirement for Whanganui giant carrot: Plant in Full Sun

A New Zealand heirloom carrot from Whanganui, thought to have been lost here until the grower found it again in an Australian seed curators' catalogue. The roots are large, long, tapered and orange, and excellent cooked.

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Whanganui giant carrot facts

Lifespan

Annual living and reproducing in a single year or less

Growing Whanganui giant carrots

  1. Dig the bed fine and stone free 1 week before sowing
  2. Keep the seed bed moist at sowing every week
  3. Thin the seedlings 3 weeks after sowing
  4. Weed between the rows 4 weeks after sowing every 2 weeks
  5. Start pulling young carrots at first harvest
  6. Lift the rest of the crop 8 weeks after first harvest

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Ecological requirements

Data from the FAO EcoCrop database for Daucus carota L.

Family / Taxonomy Magnoliopsida
Rosidae
Apiales
Umbelliferae
Optimal temperature 15 - 24 °C
Absolute temperature 3 - 30 °C
Killing temperature growth: 0 °C, rest: -1 °C
Optimal rainfall 600 - 1200 mm/year
Absolute rainfall 400 - 4000 mm/year
Optimal soil pH 5.8 - 6.8
Absolute soil pH 4.2 - 8.7
Crop cycle 40 - 150 days
Max altitude 2600 m
Life form herb
Life span biennial
Habit erect
Optimal soil depth medium (50-150 cm)
Optimal soil texture medium, organic
Optimal soil fertility moderate
Optimal soil drainage well (dry spells)
Optimal soil salinity low (<4 dS/m)
Photoperiod long day (>14 hours)
Optimal light clear skies to cloudy skies

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