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

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26 Jul 20, Jaime (Australia - sub-tropical climate)
Hi, I'm on the Central Coast of NSW. Is there any way of growing pumpkins so they're ready for Halloween?
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27 Jul 20, Anon (Australia - sub-tropical climate)
It says 15-20 weeks so you are outside of that timeframe. The seeds need warm weather to germinate. and grow. You could try, the pumpkin grows pretty quickly then takes about 3-4 weeks to mature to eat. Need full sun.
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17 Jul 20, Neil (Australia - tropical climate)
How do I germinate by hand? Are there male and female flowers?
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19 Jul 20, Liz (Australia - tropical climate)
There are male and female flowers. The female ones have a tiny pumpkin behind the flower. When you can see the yellow pollen in the male flowers, either pick one and gently rub inside the female flowers or use a cottonbud to collect pollen from the male flower and then rub in the female flower.
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27 May 20, Pumpkin Pete (Australia - temperate climate)
What is the best prep after drying seeds to grow ? Thanks
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28 May 20, (Australia - sub-tropical climate)
Give them a couple of weeks to dry out, put them in a little sealing bag, then put them in a sealable jar and into the fridge. When you take them out of the fridge leave for 20-30 mins before you open the jar. Stops condensation.
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25 May 20, Holly (Australia - sub-tropical climate)
Hi, I'm wondering if pumpkins can be planted now on a hot western slope in nth new? Yes it's late! Just wondering!
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26 May 20, Anonymous (Australia - sub-tropical climate)
Read the article here and get as much info as possible to make a decision. We are about 5 weeks away from the coldest period of the year July August, most plants do not grow much during these months. Generally give the hottest and coldest months a miss. Advice here is they need 20-30 temp to germinate, my soil is currently 18, Bundaberg. It says plant from August. I suggest you wait until then and find a warm area to be able to germinate the seeds or buy seedlings. There is a reason why you plant at the correct time, you have a better chance of a successful crop. Start preparing your ground if it needs it.
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14 May 20, Sid Clancy (Australia - temperate climate)
I live in Central West NSW, when should i be planting my pumpkins?
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18 May 20, Paul Lehmann (Australia - arid climate)
No frosts, no problem! Get them going as early as you like! I have to wait till last frost is gone, early November but this year I'm going to get some frost covers and start them a bit earlier.
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Showing 81 - 90 of 679 comments
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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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