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Growing Rockmelon, also Canteloupe

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

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

S = Plant undercover in seed trays 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 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

Your comments and tips

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?
28 Feb 17, John (Australia - temperate climate)
I only thing I would suggest is not enough water. As melons are very high in water they need a good constant supply to fill out. Mulching the roots will help conserve water. All the best for next season.
27 Feb 17, Michael (Australia - cool/mountain climate)
The seeds scooped out of a rockmelon be used to grow seedlings. I realise they would have to be dried first, but then its too early here in NSW central plains to plant. Thank you for any assistance.
28 Feb 17, John (Australia - temperate climate)
Unless the variety is an F1 hybrid you most certainly can save the seed and it will produce true to type. The chances of it being an F1 are very slim and it would have said so on the seed packet. F1 seed is still OK but may not produce the same as its parent. Rinse them thoroughly in a sieve and lay them on paper towel or cloth to dry. When they are dry store them in a paper bag or envelope with the name and date written on it. Trust this helps.
01 Mar 17, Michael (Australia - cool/mountain climate)
Thanks John for that information. Will give them a go in Spring.
27 Feb 17, David (Australia - temperate climate)
Put the seeds in a glass of water. The ones that sink to the bottom are the good seeds...dry them out and store them to plant in Spring. They should be good to keep for 3 to 4 years. You can start them in pots 4-6 weeks before Spring, then plant the seedlings in early Spring.
01 Mar 17, Michael (Australia - cool/mountain climate)
Thanks David, will follow that advice and give them a go in spring.
Showing 11 - 20 of 175 comments

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

- Ron

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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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