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 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 Oct 18, Jo (New Zealand - temperate climate)
Planted watermelon seeds late last summer,didnt grow. Now they are sprouting but stem red colour after second leaf. Is this normal?
12 Oct 18, Mike (Australia - sub-tropical climate)
Best tasting melons are grown in the spring here. I don't know about the red stem stuff. They will start picking them here in about a months time. I LOVE EM.
03 Oct 18, Benjamin Gabokhutle (South Africa - Summer rainfall climate)
I am interested in farming and just finish cultivation of the field. I am wondering if I can plant Watermelon here, at the south Coast if Kzn, the soil is clay. Soil so I am not sure what type of soil to plant Watermelon, One other thing peanuts can I also plant them this season.
03 Oct 18, Liz (New Zealand - temperate climate)
Please note : "Gardenate is not a farming or commercial advisory service. For specific advice, please contact your local plant suppliers, gardening groups, or agricultural department. "
02 Sep 18, Murray freeman (Canada - Zone 6a Temperate Warm Summer climate)
What are sweetest watermelon that can be grown in 6a
18 Aug 18, Tammy (USA - Zone 10a climate)
What are the best garden layouts for melons tomatoes, cucumbers and peppers? Not sure what can grow next to what best
30 Apr 18, Sandy (New Zealand - sub-tropical climate)
I sowed my watermelon in mid summer and it's still growing. I'm wondering if it will actually fruit in Auckland this time of year. Should I leave it or remove and try again next summer?
17 Sep 18, Mike (New Zealand - temperate climate)
Plant earlier. If no fruit developing when it starts flowering check for bees. Should have fruit developing by 10-12 weeks. Hand pollinate if no bees.
08 May 18, Andrea (New Zealand - temperate climate)
It's frustrating, because the growth is promising, but it won't ripen any fruit that form in the cold weather. Rip it out and start again in spring : )
04 Apr 18, Sandy saunders (Australia - tropical climate)
Bought watermelon in bunbury recently will these plant still grow in bunbury climate
Showing 161 - 170 of 347 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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