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 20°C and 32°C. (Show °F/in)
  • Space plants: 90 - 120 cm apart
  • Harvest in 15-20 weeks.
  • Compatible with (can grow beside): Sweet Corn
  • Avoid growing close to: Potatoes

Your comments and tips

03 Sep 18, Jeff (New Zealand - temperate climate)
I have saved seed from a pumpkin we like and allowed to dry. I am soaking some in water and some in a damp paper towel and left some dry. None are showing any sign of striking. Do I just wait longer or will they strike if I plant some out?
03 Sep 18, Liz (New Zealand - temperate climate)
Pumpkin seeds will take about 7-10 days to show any activity. Your best bet is damp paper towel or seed raising mix. As they are frost tender, pumpkin seeds need some warmth to start germinating.
11 Sep 18, Mike (New Zealand - temperate climate)
Take a plastic tray you buy your meat or chicken in from supermarkets - 2-3
03 Oct 18, Jess (New Zealand - cool/mountain climate)
I see that I should avoid planting pumpkins with potatoes. But how far apart do they need to be? Is opposite ends of the same garden bed ok? Thanks.
08 Oct 18, Mike (New Zealand - temperate climate)
Depends how far apart you planted them - ends of a bed doesn't tell me much. Take into consideration how far the pumpkin plant will spread - could be 5-6-7m. Do you want them running through your potatoes. I would suggest planting any vine crop away from smaller crops.
04 Dec 18, Robyn (New Zealand - cool/mountain climate)
I live in Te Anau and wonder what is a faster maturing pumpkin variety?? We had a good crop of pumpkins growing last year, but a rogue frost in mid March killed off the plant and the pumpkin crop did not ripen, and the weather is only coming good now (early Dec) to plant.
05 Dec 18, Mike (Australia - sub-tropical climate)
Look around some seed selling companies - email or phone them. Most times I see like 15-20 weeks to grow but which is early I don't know. Another way is to start the seeds early indoors or somewhere protected from the weather. You could start growing them in Oct say under lights. Sometimes nature throws us a big curve ball and stuffs it all up.
09 Dec 18, (New Zealand - cool/mountain climate)
thanks
22 Jan 19, Sal (New Zealand - sub-tropical climate)
I have 3 healthy pumpkins growing on the vine but the new baby ones are going yellow and dying. What causes this?
22 Jan 19, Liz (New Zealand - temperate climate)
They are going yellow and dying because they have not been pollinated. Try using a soft small paint brush, or something similar, to transfer some pollen from a 'male' flower (one without a tiny pumpkin behind it) to a 'female' flower - one with a tiny pumkin behind it.
Showing 51 - 60 of 85 comments

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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