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

21 Apr 17, Giovanni (Australia - temperate climate)
The unseasonably warm weather would certainly have helped keep the pumpkins growing but with the cooler nights of Autumn and Winter approaching you may not get them ripened in time. If you don't, just treat them like zucchinis or make pumpkin soup with them. Disappointing but you will get something out of them. For best results pumpkins need to be planted in late October to get a good long season in temperate areas.
17 Apr 17, Valerie (Australia - temperate climate)
Hi, I have a raised bed which had beetroot and tomatoes last season. Noticed a strange plant and decided to let it grow (from curiosity) but it turned out to be pumpkin and has taken over the raised bed despite constant "culling". It has produced quite a few flowers but they just close and fall off. The foliage is very healthy and the flowers numerous (being in a composted bed). My question is - if the season is over by December is it worth letting the plant(s) continue to grow and produce flowers if there is no chance of forming fruit? I have seen only a few bees and tried self-pollinating but nothing seems to be moving. Would appreciate your comments on this.
19 Apr 17, Ken (Australia - temperate climate)
Pumpkins will not be likely to ripen in temperate areas now as Autumn is setting in. It is better to get an early start in the season, around October to ensure a good crop. Any small pumpkins on your vines could be harvested and treated like zucchinis. Sadly our bee population is declining rapidly. Providing host plants around your garden will help. These include any of the 'daisy' type flowers, a lot of herbs and lavender.
11 Apr 17, Merilyn Cook (Australia - temperate climate)
My pumpkins (like many others in this are) have only just flowered and have set a large crop of pumpkins that are only just the size of a golf ball although some are double that size. Should I persist and hope for a mature crop or bite the bullet and pull them all out?
11 Apr 17, Jack (Australia - sub-tropical climate)
There is not a lot of chance getting a crop of pumpkins now as Autumn is setting in. harvest all the small pumpkins that you can and treat them like zucchini's (they are in the same family) and start earlier next season. In a lot of areas we haven't had a lot of Summer to help development and ripening.
25 Mar 17, Rocco Zappia (Australia - temperate climate)
Good Day which month is good to plant "Halloween Pumpkin"
27 Mar 17, Jack (Australia - temperate climate)
The best time to plant pumpkins, squash, zucchinis, cucumbers, etc is when the soil temperature is 15-17 degrees. This is around the end of October in the southern states. Many people say 'after the Grand Final' or 'Melbourne Cup' time.
24 Mar 17, Peter Turner (Australia - temperate climate)
Planted Karadle Gray pumpkins late spring, they are still growing and prducing female flowers. it is now late March, when will they die of so we can pick the fruits. Peter
24 Mar 17, Jack (Australia - temperate climate)
The likelihood of them ripening is fairly slim unless you don't get any frosts until late May. The vines will normally start to die off when they are ready. If you run out of time use them to make pumpkin soup or grate them to use in place of zucchinis in cakes or savoury muffins. Next season plant your seed in toilet paper cylinders or egg cartons so they will be ready to plant out in late October. Plant cylinder or egg 'cell' as well as it will rot.
14 Mar 17, Paul Tracey (Australia - temperate climate)
I see from the Gardenate planting guide that the planting time for pumpkins is September to December. I purchased butternut pumpkin seedlings from Bunnings in February. Is the selling of such seedlings out of step with the recommended planting season unethical? The seedlings have grown and there are currently 3 pumpkins visible. I am concerned that by planting them outside the recommended period they will not mature to completion.
Showing 321 - 330 of 679 comments

Different pumpkin types take different times to grow but most take over a month to fully ripen and you often wont see any finished products until mid or late March. It is definitely not time to give up yet. Good things to those who wait :) The plants will die very rapidly after the temperature drops in April and May. However if your getting mildew on the leaves in mid Feb I would recommend that you prune or spray the affected leaves to reduce the spread. I have had years where the plant died in late Feb before the pumpkins fully matured and I was very sad.

- Richard

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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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