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        

(Best months for growing Radish in USA - Zone 5a 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

04 Oct 22, ELIZABETH (USA - Zone 7b climate)
I had no idea you could actually eat the green end of a radish until i started gardening myself this past year. doing research on the when and hows has taught me so much and the green end of the radish was actually really good! Great flavor! thank you for gardeners and gardening! So much peace in my life now!!
12 Dec 22, (USA - Zone 9a climate)
what radishes grow best in zone 9A?
18 Dec 22, (Australia - sub-tropical climate)
It is about picking the variety you like.
23 Dec 22, Andres S Del Villar (USA - Zone 8b climate)
Hello, I have been growing vegetables here in Manteo, NC for the last 10 years, zone 8b. I believe your planting times are at least 30 days too early . I plant most of it by seed outdoors maybe and that may be the reason.
05 Jan 23, (Australia - temperate climate)
Read the paragraph at the bottom of the page. It is general advice, There could be many different sub climates within the same climate. Generally it is about soil temperature required for germination.
06 Jan 23, Andres S Del Villar (USA - Zone 8b climate)
You may want to do a soil test so you know what you have and what you don't. Using all that potting soil you may need some lime mix in there. If your organic is right out of the bag and not aged you just have to wait several yeas before it's broken down well.
Showing 11 - 16 of 16 comments

I have grown them for 40+ years and I think it has to do with watering and weather. Better grown into/in the winter - a more even growing conditions - smaller variation of temp and water in the soil. If grown in the hotter weather they can dry out a bit and I think this makes them hotter. Try and grow quickly. Pick as soon as they reach the required size. They will keep in the fridge for weeks.

- Mike

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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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