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Growing Watermelon

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

(Best months for growing Watermelon in USA - Zone 5a regions)

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

16 Mar 19, alastair (New Zealand - temperate climate)
I am going to try growing them in a glasshouse with heated soil . Are there any varieties more suited to this approach?
07 Mar 19, Lea (New Zealand - temperate climate)
am in north canterbury, growing watermelon in glasshouse, didnt have success outdoors, but one in glasshouse has 5 melons of different sizes on it so hopeful , one getting quite large
01 Mar 19, Lemeze Hartley (South Africa - Summer rainfall climate)
Can watermelon seeds be planted in March as its still very warm in Cape Town
13 Mar 19, Donovan (South Africa - Dry summer sub-tropical climate)
Yes you may but there's a good chance that the seeds will take longer to sprout or not sprout at all. I still think it's worth taking a chance. I'm seeding mine in Saturday and hope for the best.
06 Feb 19, Cherry (New Zealand - temperate climate)
If you pick a watermelon early and its greenish, is there any way to ripen it up without throwing out to the chickens
06 Feb 19, Mike (New Zealand - sub-tropical climate)
Read up about when to pick them.
13 Jan 19, Grahame B (Australia - tropical climate)
Water melons must have been invented for rank amateurs. I live in Coconut Grove, Darwin, NT and have zero gardening experience, but decided to plant some water melon seeds (in pots) at the end of October - build up time to our summer wet season. They germinated fast so out into the garden they went with a lot less ground preparation than there could have been. They grew, started producing flowers (male only for quite some time) so I kept watering them with the odd bit of general purpose soluble plant food. I haven't seen any diseases so they haven't been sprayed - apart from the termite man's overspray with he did my house's annual ant and spider treatment. Then, in early December, growth went up a few notches; I could see how far a vine had grown in a day. They started taking over the garden. Flowers appeared everywhere, as did tiny native bees to attend to pollination. Every few days a small watermelon appeared and quickly got bigger. At that point I sought some advice from a local garden shop on what I should be doing; they told me to keep watering and sold me some organic fertilizer pellets to feed them with. Now they've taken over the garden, have started climbing fences and keep on producing new melons. I'd never have imagined it could be that easy.
13 Jan 19, Mike (Australia - sub-tropical climate)
I have never been able to grow them. I really don't have the ground to do it. Watermelons like virgin soil. There is a lot of difference between a plant growing well and producing a good end crop. I have rock melons growing - huge - some would weigh 3-4 kg. First one I picked, tasteless - probably too much watering. Have cut back the watering. Over watering when the fruit has grown it's full size can make the melons split. Hope it keeps going well for you.
15 Jan 19, Mike (Australia - sub-tropical climate)
Rock melon weighed 4.55 kgs
15 Jan 19, Grahame B (Australia - temperate climate)
Climate must be a big factor with water melons, Mike. We'll never get an overnight low of less than 24C in summer, and rarely get one under 18C in what we call winter, so I'm going to try growing them all year round. Evidently Darwin soils are very poor because nutrients get leached from them by the heavy rain during the wet season so I'm learning how to counter that. Having never been a gardener, the water melon experience has spurred me into action and today I'll be planting some papaya and guavas. I don't think the traditional favourites like plums and peaches can be grown up here but I'm looking into it. I do remember a particular plum from my childhood (50+ years ago!) called a greengage; they were green when ripe, and sweet. Has anyone on here ever grown them?
Showing 1 - 10 of 211 comments

when should i plant watermelon in zone 8b apple valley California 92308

- DANIEL Etheridge

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