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 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

05 Jan 09, Liz (New Zealand - temperate climate)
Brett, Are you using bought seeds or saving seeds from pumpkins? If you have bought seeds, it might be worth contacting the supplier and telling them about your problem. Otherwise, if you saved seeds, see the answer to Jean's query.
05 Jan 09, David (New Zealand - temperate climate)
Ray, your pumpkins are falling off early because they are not fertilised. You may need to go around with a paintbrush and transfer pollen from the male flowers to the female. Check the comment from Jaci to identify which is which.
05 Jan 09, Liz (New Zealand - temperate climate)
Jean, you may be lucky. If you had an organic pumpkin it will probably produce both male and female flowers but if it was a F1 hybrid then its seeds will produce sterile plants. Check the flowers for possible female ones (see comment from Jaci above).
05 Jan 09, Jean (Australia - temperate climate)
Hi, When preparing a Queensland Blue a couple of months ago, I took a handfull of seeds and put them in a small hole in the garden, well they've come up and I appear to have a flourishing plant, beginning to get flowers on it, Have I got a chance as I just "bunged" them in from my pumpkin, or will it turn out to be "barren", thanks Jean
05 Jan 09, Sooze (Australia - sub-tropical climate)
Gina, We too have been wondering when to harvest a Pumpkin "buttercup" as is looks large, green & with yellow in a couple of places (like its picture). We cut it and then read that the stalk needs to turn brown before harvesting. So we have taken it too early it seems. Haven't cut it open yet to see it its got any yellow flesh. We will now leave the others that are growing till stalk is brown.
03 Jan 09, Brett (Australia - temperate climate)
We are not getting any female flowers at all on our butternut pumpkin vines. Does anyone have any clues? Last year was the same - not one pumpkin! Others we spoke to in our area had the same problem last year and we put it down to excessive heat, but this year has been much cooler so that debunks that theory.
02 Jan 09, Ray (Australia - cool/mountain climate)
I am growing Butternut Pumpkins and am finding that a lot of the pumpkins are going soft and falling off when they are just starting to form , now I dont know if I am under or over watering
30 Mar 15, colin (Australia - temperate climate)
the pumpkin has not been fertilised may be lack of bees so fertilise by stripping the male flower and dabbing it into the female flower and you get very good results with this method
31 Dec 08, Dave (Spain) (United Kingdom - warm/temperate climate)
Squash/pumpkins are ready usually from november through till feb,depending on when you sowed them.You can freeze cubed,without blanching ...easy!!
28 Dec 08, Gina Pitronaci (Australia - temperate climate)
How does one know when pumkins are ready for picking? How long will a pumpkin keep, and what is the best way of storing them?
Showing 801 - 810 of 825 comments

I have grown pumpkins 2 years in a row that have hard white lumps in them, I have bought a plant both times so I am thinking it must be something to do with were they are growing. Any idea of what could be coursing this?

- Carina Powell

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 GardenGrow 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 GardenGrow and subscribe to the free GardenGrow planting reminders email newsletter.


Home | Vegetables and herbs to plant | Climate zones | About GardenGrow | 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. 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.
We cannot help if you are overrun by giant slugs.