Growing Radish

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 127 comments

As a commercial grower of radish (primex), I always remember the advice given to me many years ago, that being to never fertilise radish. As radish is one of the fastest growing vegetables, too much fertiliser causes the leaves to outgrow the root. Long leaves have no shelf life, just look in your local supermarket. I actually apply a VERY light application of Nitrophoska Blue which gives the leaves a beautiful velvety texture. I pick the radish when they are the size of a ten cent piece and leaves about four inches long. One of the great pleasures of my life is washing the bunches of radish and packing them in boxes of thirty for sale knowing that some-one is going to enjoy eating them as much as I enjoy growing them.

- Robert

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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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