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Growing Watermelon

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

(Best months for growing Watermelon in New Zealand - cool/mountain regions)

S = Plant undercover in seed trays T = Plant out (transplant) seedlings

  • 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 21°C and 35°C. (Show °F/in)
  • Space plants: 60 - 75 cm apart
  • Harvest in 12-17 weeks.
  • Compatible with (can grow beside): Sweetcorn, Sunflowers
  • Avoid growing close to: Potatoes

Your comments and tips

13 Nov 19, anon (South Africa - Summer rainfall climate)
Usually have to plant seeds.
13 Oct 19, Mokone j mahlatsi (South Africa - Summer rainfall climate)
Hi can you assist with black diamond watermelon and citrulus lanatus Carolina cross How must I plant and grow ? Thank you
14 Nov 19, (South Africa - Summer rainfall climate)
search on-line for 'how to grow watermelon from seed'
23 Sep 19, jamie clodial (Australia - tropical climate)
what are the harvesting conditions to grow watermelon
30 Sep 19, Anon (Australia - sub-tropical climate)
Are you growing them or harvesting them?
07 Sep 19, Midda (South Africa - Dry summer sub-tropical climate)
Afternoon, please i need advice about the watermelon, how to produce the sweetest watermelon. At what time of the year. Thank you
13 Nov 19, anon (South Africa - Summer rainfall climate)
Read the information here about growing them. Asking how to produce the sweetest WM is an impossible question. It is like asking which is the sweetest in a bin of 50 of them.
10 Jul 19, Khathutshelo (South Africa - Summer rainfall climate)
How many watermelons can I keep per plant and still retain good size and quality?
24 Jun 19, Mike (South Africa - Summer rainfall climate)
Is 8th July fine for planting in Bochum?
04 May 19, Patrck (South Africa - Summer rainfall climate)
I am in Limpopp can I plant watermelom in May lts hot during the day and cold during the night
Showing 11 - 20 of 236 comments

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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. 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.
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