Growing Pumpkin

Cucurbita sp. : Cucurbitaceae / the gourd family

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

(Best months for growing Pumpkin in USA - Zone 5a regions)

  • S = Plant undercover in seed trays
  • T = Plant out (transplant) seedlings
  • 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

04 Nov 15, Joseph (Australia - temperate climate)
How do u combat mould?
03 Nov 15, larretta (Australia - temperate climate)
what is them seedling time for Pumpkin Sweet Grama?
01 Nov 15, Barry J Hewitrt (Australia - temperate climate)
Last year 2014 I planted some Queensland blue Pumpkins at the end of the harvest I picked 22 pumpkins, but much to my dismay a lot of them were very woody why would this be can any one give me an answer as they weren't very good for pumpkin soup. Cheers Bazza
15 Nov 15, Ricki (Australia - cool/mountain climate)
Hi Barry, as I understand it pumpkins can be woody if they've been cross-pollinated with other types of pumpkins. Do you have others planted nearby? Perhaps a neighbour does? Hope this helps, cheers, Ricki.
19 Sep 15, Laurie Thompson (Australia - temperate climate)
Jane Did you have any luck with Windsor Black Pumpkin seeds . Are they still on ebay Laurie
19 Sep 15, Laurie Thompson (Australia - temperate climate)
Syvia Allen Did you ever find any Windsor Black Pumpkin seeds . I have tried everywhere . Laurie Mount Waverley
02 Sep 15, Mary (Australia - temperate climate)
l live in Calista WA just south of Perth. Is October the best time to sow Butternut Pumpkin seeds for best results?
09 Aug 15, (Australia - temperate climate)
the first lot of female flowers need to be pollinated.. then the fruit grows in the next flower lot
13 Jul 15, Colin Turner (Australia - temperate climate)
I would like to know every thing I need to know to grow Jap Nut Pumpkins,
07 Jun 15, kierian (Australia - temperate climate)
Any tips on growing, looking after and getting turks turban pumpkins to pollenate? Any tips or help very much appreciated.
Showing 391 - 400 of 679 comments

Just found this - commercial production. For efficient pollination and fruit set, there must be: both male and female flowers and bees to move pollen from male to female flowers. A number of factors can influence pollination, Cold and overcast days limit pollination activity of bees. Hot dry conditions desiccate pollen making it unviable. Rapid growth promotes earlier flowering. However, high temperatures, long days and high rates of nitrogen can result in: vigorous vegetative growth and few flowers and a higher proportion of male to female flowers. It is important to check the sex of the flowers. A ratio of 1 female to 7 male flowers is usually considered adequate. Flowers open early in the day and for one day only, and they close by mid afternoon. These periods are shorter under high temperatures. Flowers are most receptive to pollination in the morning when bee activity is usually the highest. Bees are necessary for pollination and must be active in the crop. Flowers require at least 12 bee visits for good pollination. If bees are not plentiful, introduce at least two hives per ha after female flowers appear and male flowers start producing pollen. Spread hives around the field outside the crop, preferably so that bees have to fly over the crop to get to another food source. Destroy flowering weeds around the crop.

- Mike

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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. Gardenate 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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