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Growing Rockmelon, also Canteloupe

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

(Best months for growing Rockmelon in New Zealand - cool/mountain regions)

S = Plant undercover in seed trays T = Plant out (transplant) seedlings

  • 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 68°F and 90°F. (Show °C/cm)
  • Space plants: 16 - 24 inches apart
  • Harvest in 10-16 weeks.
  • Compatible with (can grow beside): Sweetcorn, Sunflowers
  • Avoid growing close to: Potatoes
  • Leaves and flowers
    Leaves and flowers
  • Young melons
    Young melons

Start in small pots then transplant when no danger of frosts. Plant into a raised mound to provide good drainage and warmth. Provide plenty of water.

Ready to use when the fruit falls from the vine

In the United Kingdom start the seeds in a heated greenhouse with plenty of light.

Rockmelons may need hand pollination with a soft brush.

Culinary hints - cooking and eating Rockmelon

Cut in half and scoop out and discard the seeds.
Sprinkle with some ground ginger or serve plain.

Your comments and tips

29 Mar 17, Dianne James (Australia - cool/mountain climate)
I live near goulburn nsw and was wondering if i could grow rockmelon if so when thank you
30 Mar 17, John (Australia - temperate climate)
Rock melons like it hot so should do well in Goulburn. Start the plants early in Toilet paper cylinders ready for planting after the last frost. Plant the cylinder and all as the cylinder will rot. Seeds are generally readily available or look online at companies like - Green Harvest, Eden Seeds, Diggers, New Gippsland Seeds, etc. There are a number of shorter season varieties listed if you are worried. All the best.
10 Apr 17, Lizzy (Australia - cool/mountain climate)
I am growing the diggers rockmelon world variety in Queanbeyan on a northern bank The ones that came out were honeydew. They are small but very tasty. D'agen rockmelon also grow. Get them going early in a glasshouse or inside.
19 Mar 17, Ron (Australia - temperate climate)
Hi i am growing rock melons at work and have not had the experience of knowing when to pick them several friut are changing slightly to a lite shade of beige with slight yellow parts on the top side the stems are still green and no give where the stork joins the melon many thanks for any advice
21 Mar 17, Joanna (Australia - temperate climate)
They are ready to pick when the stem attaching them to the vine starts to die off. They sweeten further if you keep them at room temperature for a few days after pic,inf.
19 Mar 17, Ken (Australia - temperate climate)
When rock melons are ripe you will see a small crack start to appear where the stalk joins the fruit. The stalk will come away easily from the fruit when you gently attempt to pick it.
06 Mar 17, Trevor (Australia - temperate climate)
My rockmelon is rotting on the vine. The underside is being attacked by a mould on fungus. I have tried rolling the fruit over to have sunlight on all sides but it does not help. Even fruit hanging off the ground on a trellis is being attacked. Is there a spray or dust I can use to stop this problem?
08 Mar 17, John (Australia - temperate climate)
Any copper-based spray will work. As long as it is not applied excessively it is a safe spray to use. Rock melons are in the same family as pumpkins, zucchinis and cucumbers and are very susceptible to downy mildew and other fungal problems. To reduce the problem grow on trellises in a well ventilated spot. High humidity does not help the problem. Trust this helps.
09 Mar 17, Colleen (Australia - sub-tropical climate)
For a non chemical method, which I've used for many years, make up a solution of powdered milk and water the whole plant with it. For some reason the milk seems to either kill or neutralise the powdery mildew
27 Feb 17, Anthea (Australia - temperate climate)
Rockmelons are sweet, but the flesh is too hard rather than juicy. Any suggestions as to how I can grow better ones next year?
Showing 1 - 10 of 171 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. GardenGrow 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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