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Growing Radish

(Raphanus stivas)

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
    P P P     P        

(Best months for planting Radish in USA - Zone 5a regions)

P = Plant direct in garden where they are to grow.


  • 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 46°F and 86°F. (Show °C/cm)
  • Space plants: 1 - 2 inches apart
  • Harvest in 5-7 weeks.
  • Compatible with: Chervil, cress,lettuce, leeks, spinach, strawberries, tomatoes
  • Avoid growing with: Hyssop, gherkins
  • Cherry radish
  • French Breakfast radishes

Your comments and tips

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01 Dec 12, Ruth (New Zealand - sub-tropical climate)
The most likely reason is that you have left them in the ground too long.
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18 Sep 08, Michelle (Australia - temperate climate)
Make sure radishes have enough water and don't let them become too enormous. If they are water deprived or get too big, they can become bitter. From sowing to harvesting, they are one of the quickest growers (if happy...6-8 weeks). They also love a dose of potash.
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07 Aug 08, sal (Australia - cool/mountain climate)
how long will it take for the radish seeds to be visible??
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07 Aug 08, amy maloney (New Zealand - cool/mountain climate)
tips for growing radishes?
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11 Jun 08, Chris (Unknown climate)
Christine, you can probably eat them without harm (they're a brassica), but the leaves are usually covered in prickly hairs, so why you'd want to is the main question - I would rather just eat the radish. You can certainly eat turnip and beetroot leaves, so radish leaves might be ok cooked? Perhaps you can let us know how you go with them?
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10 Jun 08, christine (Unknown climate)
Can you eat the leaves of radish e.g. in salad or cooked
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30 May 08, Chris (Unknown climate)
Rex, I've found lack of water at any stage during growth will make radish turn bitter. It's also a dreadful problem with cucumbers - one day of wilting makes them completely inedible!
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30 May 08, Rex (Unknown climate)
Could I please know why my radishes are so bitter? Last year tasted nice!
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10 Apr 08, Sophie (Unknown climate)
Long Scarlet radishes are good in a stirfry. All radishes make a great pickle.
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Does anyone know why some of my radishes are splitting? Only some came out perfect.

- Eugenia


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