Growing Watermelon

Cucurbitaceae c. lanatus : Cucurbitaceae / the gourd family

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

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

16 Feb 18, david harris (Australia - sub-tropical climate)
had any one have black water melon seeds for sale -
19 Feb 18, Mike (Australia - sub-tropical climate)
Internet seed selling companies - Boondie is one. $1 for a few.
06 Jan 18, khalil (USA - Zone 12a climate)
hi, please i need best F1 watermelon, tomato, cucumber & squash seeds growing well in USDA Zones 11b - 12a ( very hot climates and dry ) thanks
10 Dec 17, mahlatsi j mokone (South Africa - Summer rainfall climate)
I plant my carolinacross watermelon on 20nvember 2017 it ryte time or wat?
09 Dec 17, Sarah Gumede (South Africa - Summer rainfall climate)
I am in Nkomazi around Nelspruit and I want to plant watermelon. Today is the 10 of December. Where can I get them meaning the seeds. I would like to have the seedless type. Can I still plant them
29 Nov 17, Toni (New Zealand - temperate climate)
Has anyone growen watermelons in Wellington?
28 Dec 17, Uta (New Zealand - temperate climate)
I'm growing them for the first time, in Manawatu. So far with the heat and sun we've been having they're doing well. But they'll need a long season, so fingers crossed. My first transplant died in the wind, so shelter is important, in Wellington too :-)
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
Showing 181 - 190 of 350 comments

Is July too late to plant or transplant? Or should I wait for August. Wanted to get a plant or seeds as a late Father's day gift but thought I should ask. It can always get a birthday present in August

- NSyed

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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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