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 Jan 12, Val (Australia - cool/mountain climate)
I cannot grow radishes, carrots or parsnips. Tops look great, but nothing below the soil. What type of soil should I concentrate on, type of fertiliser etc. I have fluid off the worm farm, is this ok to use.
12 Jan 12, kate (Australia - cool/mountain climate)
Hi! I had the same problem with just putting the radish seeds in the ground. I found it easier to germinate them first. I put the seeds into a wet tissue and then popped it into a ziplock bag until they germinated. Once they germinated (6-10 days), I put them into my soil and VOILA.... growing very well! This trick can be used for all seeds! Let me know how you find this.. Kate
02 Jul 12, Ash (Australia - temperate climate)
This was the same problem with me too last year. Then i notised that few plants with no shadow whole day grows well down under and lots of plants with shadow for even a short time in a day also remain smaller raddish. So this year i planted all under full sun and all good now.
23 Apr 12, kate (Australia - cool/mountain climate)
I have to say I have had the best month for growing Radish this year! All of them have been a success and It's amazing. Soooo happy! I would love to add photos to show everyone!
23 May 12, Monique (Australia - temperate climate)
My raddishes are not forming. They have a healthy looking stem and leaves but there are no radishes growing. They have been growing for over 2 months now. Any suggestions?
16 Oct 12, Vincent Harney (Australia - temperate climate)
Have twice planted french breakfast radishes in potting mix. Result - no radishes. Is the potting mix the problem? Should I just use soil? And perhaps a box?
14 Nov 12, Keren (Australia - temperate climate)
If you find a lack of root development in plants that are grown for their roots: radishes, carrots, etc., but great healthy leaves above, that would indicate too much nitrogen fertiliser. Go easy on the fertiliser and your roots will grow better.
20 Jan 13, Rose (Australia - temperate climate)
Another comment said if tops are great but poor roots you should lay off the fertilizer. They specifically noted nitrogen.
21 Apr 13, (Australia - tropical climate)
mix 50% river sand with a clay type soil for radishes this works well for me. no fertilizers needed.
19 May 13, Detlef (Australia - temperate climate)
The leaves are delicious in stir fries, omelettes, stews etc.
Showing 31 - 40 of 144 comments

My raddishes are not forming. They have a healthy looking stem and leaves but there are no radishes growing. They have been growing for over 2 months now. Any suggestions?

- Monique

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