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

Your comments and tips

05 Jan 19, Mike Logan (Australia - sub-tropical climate)
Try some Epsom Salts - buy it in the supermarket or nursery.
18 Nov 18, Lorraine Johnstone (Australia - temperate climate)
We have been advised to grow and eat yellow watermelons. This actually means blending the entire melon, skin, etc as well, and drink/eat. It's apparently very good for you. Plan to take out the pips and dry them. Has anyone done this, or can anyone please advise how to go about growing? I am awaiting receipt of the seeds. Thanks in advance.
18 Nov 18, Mike (Australia - sub-tropical climate)
Difference between red and yellow - yellow is sweeter and red has heaps of antioxidants - yellow has little or none. Melons are grown in the spring - in sub tropical and temperate you would be picking them now to mid Jan. You can also grow them late summer into autumn - don't taste as good I reckon. The skin can be used for pickling and relish. If you really need whatever is in the yellow you may need to source it from somewhere else as you would only have melons for a few months of the year. Read up about growing them.
04 Apr 18, Sandy saunders (Australia - tropical climate)
Bought watermelon in bunbury recently will these plant still grow in bunbury climate
14 Apr 18, (Canada - Zone 3b Temperate Warm Summer climate)
I wanted to start greenhouse & I am following www.agricultureguruji.com blog for greenhouse please help me which crop suitable for me in greenhouse
05 Apr 18, (Australia - sub-tropical climate)
Give it a go. Probably too late now. Plant next Sept/Oct.
09 Mar 18, Justin .C (Australia - temperate climate)
I have planted 2 watermelons in early summer & they produced 3 good sized fruits, 2 are still on the vine & now the vine is sending out lots of runners with numerous fruits which I have pollinated, it's now early Autumn. Will these fruits mature or does the vine die off once the cooler weather starts?
11 Mar 18, Mike (Australia - sub-tropical climate)
Let them grow they probably will produce fruit but probably not as good as the first 3. Yes the plants will die back some time.
18 Feb 18, Lynn (Australia - sub-tropical climate)
I have tomatoes growing with a watermelon vine. The watermelon is doing well, but the tomatoes’ leaves are growing distorted. Does anyone know about interplanting these two crops? Should I pull the tomatoes out?
20 Feb 18, Mike (Australia - sub-tropical climate)
Tomato yellow leaf curl virus went through southern Qld back in 2009 or so. It has probably spread far wider by now. The leaf is like your hand with the fingers still curled in. The leaf doesn't open out and grow. The plant becomes stunted. Caused by the silver winged fly. Look it up on the internet. It can be stopped with a soap spray. If no success pull it out and put in rubbish bin. It wiped out the tomato growing industry in Bundaberg.
Showing 51 - 60 of 171 comments

Difference between red and yellow - yellow is sweeter and red has heaps of antioxidants - yellow has little or none. Melons are grown in the spring - in sub tropical and temperate you would be picking them now to mid Jan. You can also grow them late summer into autumn - don't taste as good I reckon. The skin can be used for pickling and relish. If you really need whatever is in the yellow you may need to source it from somewhere else as you would only have melons for a few months of the year. Read up about growing them.

- Mike

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