Last edited on 2 Nov 2026. View history
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
- Dig the bed fine and stone free 1 week before sowing
- Keep the seed bed moist at sowing every week
- Thin the seedlings 3 weeks after sowing
- Weed between the rows 4 weeks after sowing every 2 weeks
- Start pulling young carrots at first harvest
- 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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