Growing Pumpkin

Cucurbita sp. : Cucurbitaceae / the gourd family

Jan F M A M J J A S O N Dec
                  P P P

(Best months for growing Pumpkin in New Zealand - cool/mountain regions)

  • P = Sow seed
  • Easy to grow. Sow in garden. Sow seed at a depth approximately three times the diameter of the seed. Best planted at soil temperatures between 68°F and 90°F. (Show °C/cm)
  • Space plants: 35 - 47 inches apart
  • Harvest in 15-20 weeks.
  • Compatible with (can grow beside): Sweet Corn
  • Avoid growing close to: Potatoes

Your comments and tips

Post a comment or question Display Newest first | Oldest first, Show comments for New Zealand | for all countries
19 Apr 23, (Australia - sub-tropical climate)
Spring summer.
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21 Feb 23, Debbie (New Zealand - temperate climate)
I planted 3 pumpkins in October, all different varieties. One has not produced any female flowers and the other two have any just produced two little pumpkins this month (February) . They are healthy plants with an abundance of male flowers. My qustion is will they ripen before it gets too cold?
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22 Feb 23, (New Zealand - sub-tropical climate)
Pumpkins take about 5mths.
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12 Feb 23, Ty Buchanan (Australia - sub-tropical climate)
To pollinate snap off a yellow protuberance from the male. Gently push the protuberance into the middle of the yellow female, right into the center, and leave it there. That's it!
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07 Feb 23, Lynette Baldwin (Australia - tropical climate)
Came home from holidays in January and there is a pumpkin growing in my garden it’s getting big will it grow in these months or not . I think my grandson planted it he’s only seven .
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13 Feb 23, (Australia - tropical climate)
Let it grow and see what happens - keep it well watered in the hot weather.
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29 Dec 22, Xander (Australia - sub-tropical climate)
How do l tell the difference between male and female flower
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29 Sep 23, Anonymous (Australia - temperate climate)
Have a look at the thing growing inside the flower. Does it look like a male thing or a female thing? I think this will answer your question.
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04 Jan 23, Gabriella (Australia - temperate climate)
Female flowers have a tiny pumpkin at the base of the flower, males just have stem.
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24 Dec 22, John (Australia - tropical climate)
Why do my pumpkins get to the size of a fifty cent peace and go yellow and drop off
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Showing 11 - 20 of 823 comments
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You are listed as sub-tropical but also mention Dunedin. If you live in Dunedin it may be too late for the pumpkins to ripen before winter sets in. Pumpkins need about 4-5 months of good growing weather to do really well. The best way to grow pumpkins in areas where the seasons are shorter is to plant them in toilet paper cylinders filled with mix about 3 weeks before the last frost is expected. Stand the cylinders in a container (for watering) and keep them in a sunny spot inside. As soon as the soil is warm enough, about mid November in Dunedin I would think you could plant them out (cylinder included, it will rot. Removing the growing tips when a few pumpkins have formed will definitely help the pumpkins to grow a good size. If the pumpkins don't develop enough this year grate them and use them instead of zucchini in cakes or savoury slice or muffins. Trust this helps.

- Jonno

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This planting guide is a general reference intended for home gardeners. We recommend that you take into account your local conditions in making planting decisions. GardenGrow is not a farming or commercial advisory service. For specific advice, please contact your local plant suppliers, gardening groups, or agricultural department. The information on this site is presented in good faith, but we take no responsibility as to the accuracy of the information provided.
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