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

Post a comment or question Display Newest first | Oldest first, Show comments for USA | for all countries
03 Feb 13, LeanneMacLeod (Australia - temperate climate)
We have some Queenland Grey pumpkins growing and wonder wether we need to lift the maturing pumpkins up off the ground to avoid them rotting. We are in Emerald Victoria
Reply or Post a new comment
02 Feb 13, ashley Kitching (Australia - temperate climate)
My Pumpkin vine is growing okay, plenty of flowers and have pumpkins forming, but, when they get to the size of a snall apple they become soft and fall from vine. This is the first time I have tried growing pumpkins and would love to have some success Thanking you in advance Ashley
Reply or Post a new comment
14 Feb 13, Bill (Australia - temperate climate)
Ashley it sounds like your pumpkins are not being pollinated... Normally this is done by insects like bees... You can do this yourself, get out in the early hours (when the flowers are fresh and pollen is fertile) and take the pollen dust from a male flower (flower that is on a long stem) with a brush and liberally dust it onto the female flower (flower attached to a bulb which becomes the pumpkin) and the fruit should set.
Reply or Post a new comment
30 Jan 13, John Maddocks (New Zealand - temperate climate)
I am growing Queensland Blue pumpkins fro seed packed by Yates ,sofar all I have are healthy plants with all female flowers .so even if there bees around we would still not flowers ,advise please
Reply or Post a new comment
19 Jan 13, Judy (Australia - sub-tropical climate)
We have too many male flowers on our vines , how do you tell the difference between male & female seeds before planting. Is this possible?
Reply or Post a new comment
21 Jan 13, Rache; (Australia - temperate climate)
Plants are monecious but with unisexual flowers ie. have both male & female flowers on the same plant. Generally male flowers are produced first on the vine with the female flowers coming later. A common problem that arises is too few female flowers - sometimes you just have to be patient, they'll come - or sometimes a nutrient imbalance - too much or too little.
Reply or Post a new comment
01 Dec 12, kevin (Australia - temperate climate)
my queensland blue pumpkin vine has a female flower that i cross polinated ,ive done this a few times with much sucess but with the first female pumpkin flower the baby pumpkin was a light green and growing ,but now its turned yellow is this normal?...kev
Reply or Post a new comment
11 Dec 12, Gerry (Australia - temperate climate)
Think its dead
Reply or Post a new comment
06 Nov 12, (Australia - temperate climate)
HI My plants are also showing alot of male flowers,i have hand pollinated my Zucchinis and they are doing well,what is the go with all the male pumpkin flowers ,can anybody help!!!!!!!!!!!!!!!!!!!!! Regards Mick
Reply or Post a new comment
17 Nov 12, Jane (Australia - sub-tropical climate)
I find that sometimes I have a lot of male flowers and few females, and sometimes the oposite happens. I guess that is why we fertilize by hand. Jane
Reply or Post a new comment
Showing 511 - 520 of 679 comments
See comments for all plants

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

Please provide your email address if you are hoping for a reply


All comments are reviewed before displaying on the site, so your posting will not appear immediately

Gardenate App

Put Gardenate in your pocket. Get our app for iPhone, iPad or Android to add your own plants and record your plantings and harvests

Planting Reminders

Join 60,000+ gardeners who already use Gardenate and subscribe to the free Gardenate planting reminders email newsletter.


Home | Vegetables and herbs to plant | Climate zones | About Gardenate | Contact us | Privacy Policy

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.
We cannot help if you are overrun by giant slugs.