Growing Watermelon

Cucurbitaceae c. lanatus : Cucurbitaceae / the gourd family

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

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

  • S = Plant undercover in seed trays
  • T = Plant out (transplant) seedlings
  • P = Sow seed
  • Grow in seed trays, and plant out in 4-6 weeks. Sow seed at a depth approximately three times the diameter of the seed. Best planted at soil temperatures between 70°F and 95°F. (Show °C/cm)
  • Space plants: 24 - 30 inches apart
  • Harvest in 12-17 weeks.
  • Compatible with (can grow beside): Sweetcorn, Sunflowers
  • Avoid growing close to: Potatoes

Your comments and tips

26 Jan 18, Sally (New Zealand - temperate climate)
I’m in the Manawatu also and have 5 watermelons on my plant, never had success before, it’s been so hot that I’m thrilled to have fruit!! Hope yours have been a success too.
22 Feb 19, Ane (New Zealand - temperate climate)
I'm in Manawatu as well and have 2 plants growing, each have about 6-8 melons. A couple of them are almost the size of a netball and the rest are slightly larger then a tennis ball. Fingers crossed they keep growing:)
26 Nov 17, Jilly (New Zealand - temperate climate)
I would.like to know why lately a lot of supermarket watermelons are rubbery and soft in texture?? ..ugly to eat..not lovely and crisp
18 Oct 17, Micheal Ntisetsang (South Africa - Summer rainfall climate)
I've planted watermelon on 09/09/17 and it is still developing vines and they are 50 to 60 cm long but surprisingly they are flowering at the same time pls advise on what to do
14 Sep 17, william (South Africa - Summer rainfall climate)
Were can I find watermelons in limpopo
01 Sep 17, Coccinelle (Australia - temperate climate)
I have 1m square veg boxes. In one I've only planted a few pumpkin seedlings. Can i use the rest of the space to grow watermelon? Will they be compatible?
04 Sep 17, Darren (Australia - temperate climate)
In that space, you will only be able to grow 1 or 2 pumpkin or watermelon vines. Both require a lot of room.
04 Sep 17, Mike (Australia - sub-tropical climate)
A 1 square meter garden would only support about1- 2 pumpkin plants. Or only 1-2 water melons. About 3-4 cucumber plants. Just think how big the plants will grow and how much nutrient they will require.
17 Aug 17, Rodney A Dwight (Australia - sub-tropical climate)
What is the best soil condition water Mellon grow in was and best time to sow
18 Aug 17, Mike (Australia - sub-tropical climate)
Sub tropical - plant them now. If frost is a problem grow in a pot for awhile. Water melons are usually picked before Xmas. Any reasonable soil - not a heavy clay or very sandy. Read up about how to grow them - google it. Plenty of water.
Showing 191 - 200 of 353 comments

I have done watermelon seeds in September month & they have come up & r doing well so har. When is the best time to plant them in the ground they r about 1 inch high each I have 4 of them

- Tracy smith

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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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