Growing Radish

Raphanus sativas : Brassicaceae / the mustard or cabbage family

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

(Best months for growing Radish in USA - Zone 10a regions)

  • P = Sow seed
  • Easy to grow. Sow in garden. Sow seed at a depth approximately three times the diameter of the seed. Best planted at soil temperatures between 8°C and 30°C. (Show °F/in)
  • Space plants: 3 - 5 cm apart
  • Harvest in 5-7 weeks.
  • Compatible with (can grow beside): Chervil, cress,lettuce, leeks, spinach, strawberries, tomatoes
  • Avoid growing close to: Hyssop, gherkins

Your comments and tips

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11 May 15, Janice (Australia - temperate climate)
Hi there, just thought I'll share this lovely winter radish citrus recipe which l discovered. Looks so delicious and some great info about radishes :) stirringchange.com/radish-citrus-salad/
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26 Mar 15, Lola Diver (Australia - cool/mountain climate)
What is the best type of fertilizer to use for my radishes?
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29 Dec 17, Mike (Australia - temperate climate)
Radishes need good soil - not overly rich. If too rich the plant will produce a lot of leaves. Good free draining soil and water every day.
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10 Mar 15, Kay Green (Australia - temperate climate)
Recent radish purchases from a variety of shops have all been like rocks. Almost break my dentures. Is it the time of year or just a weather phenomenon?
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29 Dec 17, Mike (Australia - temperate climate)
Radishes grown slow with irregular watering tend to be hard and bitter I think. Grow them quick with plenty of water.
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19 Oct 14, Sheila Graham (Australia - temperate climate)
I have raddish from seed, lots of them. And I have some from seedling. I used Seasol two weekly. The seedlings are ready to eat. I will leave the seeds for another two weeks or so.
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09 Oct 14, claire storey (Australia - temperate climate)
What type of fertilizer do you use for radishes. How do you get good root development
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11 Sep 14, suzette (Australia - temperate climate)
How much fertiliser is needed for radishes? No root development and lots of leaves makes me think too much fertiliser.
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05 Jul 14, john (Australia - temperate climate)
Why are my radishes all leaves and no bulbs
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21 Jul 14, Steve (Australia - temperate climate)
Too much nitrogen, grow some lettuce chard or cabbage there
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Showing 51 - 60 of 98 comments
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I'm sub tropical and have done many different things trying to grow radish. Temps here from now to end of winter, day generally 22 to 27, couple in the high teens maybe. Nights 6 to 16 with the odd 3 or 4. Don't plant radish in rich soil, probably best to plant after another crop. Plant thinly and in narrow rows. I would think you have planted into too rich a soil. Must say I have the same problem at the moment. I tried to plant in wide bands sparsely, it didn't work, soil was too rich. I'm trying some called white hailstone, I think they are a more reliable milder taste. I think radish are better grown here in the winter rather than summer.

- M

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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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