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 P P P P P

(Best months for growing Radish in Australia - sub-tropical 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 46°F and 86°F. (Show °C/cm)
  • Space plants: 1 - 2 inches 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

23 Oct 18, Mike (Australia - temperate climate)
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.
28 Jan 18, Alice (Australia - temperate climate)
You mentioned that Radishes are best planted at three times the seed's diameter. Could you suggest a specific depth for a variety such as a Cherry Radish?
02 Feb 18, Mike (Australia - sub-tropical climate)
I received some cherry radish in the mail yesterday and it says 10mm deep.
30 Jan 18, Mike (Australia - cool/mountain climate)
Just run the rake handle in the soil to make a small furrow 4-6mm deep. Shake a few seeds into one hand and then pick up a few with the other hand and drop along the furrow. When finished cover the seeds with 4-6mm of soil. Water them morning and night. You could put a piece of shade cloth over the top of them until they germinate.
01 Aug 17, Corinne Young (Australia - temperate climate)
Can I grow Radishes in pots . Deep pots. I live in Capel , Western Australia.
03 Aug 17, Bev (Australia - cool/mountain climate)
Your pot size must be relative to the size of the radish. Radishes come in sizes ranging from 2cm to 30cm & larger !
02 Aug 17, Mike (Australia - sub-tropical climate)
A better suggestion is a Styrofoam box used for corn or zucchini - if you can find bigger boxes the better - you can grow more at a time. Go to Foodworks, IGA or any supermarket and ask if they have any. Put newspaper, shade cloth or bubble wrap on the bottom - then about 25 mm of small pebble (the beach) - then another layer of paper, shade cloth or bubble wrap with some holes in it. Mix up some soil, sand, compost/manure and potting mix/seed raising mix. Put that in the box and give a good watering. Plant the radish and sprinkle some soil/ potting mix/seed raising mix over the radish. Keep out of the sun until they germinate or put some shade cloth or something similar over them until they germinate. With this free draining soil and shallow soil depth they will need watering each day and plenty of sun. Have 2-3-4 boxes and have a succession of plantings. This method can be also used to grow lettuce and baby spinach - plant very densely and cut the young leaves about 25-50 mm up the plant and they will reshoot - multiply cuttings. You can buy seeds on the internet 100-200 seeds for $1.
15 Feb 17, Millicent (Australia - temperate climate)
Mine were red and green
04 Nov 16, lana (Australia - temperate climate)
why did my radish look great when harvest,but were not nice .soft and spongy airy inside.
16 Jan 17, Amy (Australia - temperate climate)
I have read that that can happen if you leave them in too long, could that have been the case?
Showing 31 - 40 of 98 comments

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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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