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

11 Mar 20, Anon (New Zealand - sub-tropical climate)
Take the time to read how to grow things, like how far between plants, between rows, then plant seeds/seedlings accordingly. There is a reason for that, it gives the plant enough soil area to draw the nutrients to grow. The best time to transplant is when the plant is at about the 4-6 new leaf stage or in some cases about 4-6 weeks after germination. The longer you leave it the bigger the transplant shock or death. You be the judge.
Showing 31 - 31 of 31 comments

I have a watermelon growing and setting teeny baby fruit but they all wither and drop off within a week of setting. Any ideas?

- Phoebe

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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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