Last edited on 2 Nov 2026. View history

Hopi grey pumpkin Hopi Grey Pumpkin

Cucurbita maxima

A variety of pumpkin

How to sow Hopi grey pumpkin: Direct seed indoors (and transplant outside after seedlings are hardened off) or outdoors

Sun requirement for Hopi grey pumpkin: Plant in Full Sun

A winter squash brought to New Zealand by Mark Christiensen for its food-security potential. The Hopi selected it to last two years if grown and stored well. It has orange flesh with excellent flavour and very fat seeds that are good to eat.

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Hopi grey pumpkin facts

Lifespan

Annual living and reproducing in a single year or less

Growing Hopi grey pumpkins

  1. Sow seeds in pots 4 weeks before planting out
  2. Dig a pit and fill it with compost 2 weeks before planting out
  3. Harden off the seedlings 1 week before planting out
  4. Set or refill beer traps for slugs and snails at planting out every week
  5. Water deeply at the base 1 week after planting out every week
  6. Mulch around the plants 3 weeks after planting out
  7. Hand pollinate the female flowers 6 weeks after planting out
  8. Pinch out the vine tips 10 weeks after planting out
  9. Lift fruit onto a tile or board 6 weeks before first harvest
  10. Check leaves for powdery mildew 8 weeks after planting out every 2 weeks
  11. Cut pumpkins with a long stalk at first harvest
  12. Cure the pumpkins in the sun 1 week after first harvest

Plant Hopi grey pumpkins with

chives chives

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Ecological requirements

Data from the FAO EcoCrop database for Cucurbita maxima Duchesne

Family / Taxonomy Magnoliopsida
Dilleniidae
Violales
Cucurbitaceae
Optimal temperature 20 - 30 °C
Absolute temperature 9 - 38 °C
Optimal rainfall 600 - 1000 mm/year
Absolute rainfall 450 - 2700 mm/year
Optimal soil pH 5.5 - 7.5
Absolute soil pH 5.0 - 8.5
Crop cycle 80 - 140 days
Max altitude 2000 m
Life form vine
Life span annual
Habit climber/scrambler/scadent
Optimal soil depth deep (>>150 cm)
Optimal soil texture heavy, medium, light, organic
Optimal soil fertility high
Optimal soil drainage well (dry spells)
Optimal soil salinity low (<4 dS/m)
Photoperiod short day (<12 hours), neutral day (12-14 hours), long day (>14 hours)
Optimal light very bright

Licensed under CC-BY-4.0 .

Food and Agriculture Organization of the United Nations (2025) ECOCROP, the crop ecological requirements database. Version 1. https://data.apps.fao.org/catalog/dataset/ecocrop. Accessed through the CGIAR Climate Action Data Hub, https://cgiar-climate-data-hub.github.io/catalog/ecocrop_1/.

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