Growing Watermelon

Cucurbitaceae c. lanatus : Cucurbitaceae / the gourd family

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

(Best months for growing Watermelon in USA - Zone 7a 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
  • Melon flower
  • Watermelon

Large, round or oval, smooth green skinned, delicious, sweet pink fleshed melon.

Some have stripes on the skin.

Some varieties will produce fruit up to 14 Kg (31 US pounds).

Harvest when the part in contact with the ground is turning yellow and the fruit sounds hollow when tapped.

Watermelon needs plenty of room to grow as it sends out long vines

Needs a long warm season to mature.

Culinary hints - cooking and eating Watermelon

Cut up and eat in slices.
Use to make fruit drinks.
Use in fruit salads.

Your comments and tips

04 May 23, juan perez (USA - Zone 10a climate)
melons do they grow on the ground or trails
08 May 23, Anonymous (USA - Zone 3b climate)
30 Apr 23, Sam (USA - Zone 10a climate)
I’m in zone 10a Rialto ca and I’m wondering if it’s too late to start my watermelon seedling this is my first time ever planting something and I have many many many seeds of multiple vegetables and I have no idea when to start my seeds
08 May 23, Anonymous (USA - Zone 6b climate)
Each vegetable here has a planting guide for each climate zone. Find your zone in the top bar and check the planting calendar for watermelon.
02 Oct 22, Charles (South Africa - Semi-arid climate)
I want to know how best l can grow water melons in Summer under irrigation.
03 Oct 22, (South Africa - Semi-arid climate)
Irrigate regularly. 2-3 times a week. Small amounts when plant are small then increase the water as they grow.
28 Sep 22, Garry (Australia - temperate climate)
Hello there,just wondering if I can grow watermelon and rockmelon close together. Thanks Garry.
18 Oct 22, Albert (Australia - sub-tropical climate)
Plants only cross pollinate within their own species. Watermelon (citrullus lanatus) and Rockmelon (cucumis melo) will not cross. Bees can cross pollination and they can travel up to 2 km, this is the (?)
29 Sep 22, (Australia - tropical climate)
Depends how close - 5-10m away would be OK. I wouldn't do 1-2m apart - cross pollination.
26 Sep 22, Brodie O'Donnell (New Zealand - cool/mountain climate)
Can I grow watermelons in Southland.?
Showing 1 - 10 of 320 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. 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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