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
  • Mature watermelon
  • 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

09 May 24, (USA - Zone 7a climate)
7
19 Sep 23, Amanda (USA - Zone 8b climate)
I thought my watermelons had died off but in the beginning of this month (September) they decided to start growing again any chance they will actually survive or am I wasting my time?
20 Sep 23, Anonymous (USA - Zone 8b climate)
It does say plant Feb March.
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)
Ground.
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
26 May 24, Lee (USA - Zone 10b climate)
I am in zone 10a & 10b. Last year I started my watermelons on memorial day, not intentionally, and they grew really well. Today is memorial weekend and I'm planting mine now. I wouldn't say wait on purpose, I just moved so I had to wait, it never hurts to try. Because it was so late in the year, last year, I only planted 6 watermelon seeds in the ground and 5 produced. 4 of them had 4 watermelons and 1 of them had 3. I feel like these areas are capable of growing things almost year round regardless of the suggested planting time.
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.
08 Aug 22, Catherine E Villarreal (USA - Zone 10b climate)
When can I plant seedless watermelon seeds in zone 10b
04 Sep 22, (USA - Zone 10b climate)
March or Aug Sept
Showing 1 - 10 of 44 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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