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 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
  • Cherry radish
  • French Breakfast radishes

Small, spicy tasting root vegetable usually round but some longer varieties. Available in a range of colours between red and white.

Very easy to grow. Good for a child's first garden as seedlings appear in two or three days. Sow between other vegetables as they will mark the rows until the slower germinating plants appear.

Culinary hints - cooking and eating Radish

Wash well and remove leaves and roots.
Use raw in salads or on their own with bread and butter.

Your comments and tips

Post a comment or question Display Newest first | Oldest first, Show comments for USA | for all countries
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.
Reply or Post a new comment
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.
Reply or Post a new comment
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.
Reply or Post a new comment
12 Dec 22, (USA - Zone 9a climate)
what radishes grow best in zone 9A?
Reply or Post a new comment
18 Dec 22, (Australia - sub-tropical climate)
It is about picking the variety you like.
Reply or Post a new comment
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!!
Reply or Post a new comment
12 Dec 20, Vanessa (USA - Zone 10b climate)
My baby sprouts were devoured in my raised bed, despite using bird netting. No bugs visible. What could it be??? So bummed.
Reply or Post a new comment
14 Dec 20, (USA - Zone 3a climate)
You may have to go out at night to see what eats them. Could be snails or worms etc. If you can buy it, try some veggie netting.
Reply or Post a new comment
22 Sep 19, Gerty (USA - Zone 7b climate)
My radishes came out too small or not developed a full bulb/root at all. I used a peat based potting soil and compost + vermiculite also amended with fish/kelp emulsion. I am growing them in 6 inch deep flats with proper drainage holes. The variety is Cherry Belles, Rover, French Breakfast. Planted them in late summer for fall.
Reply or Post a new comment
25 Apr 20, Dr. Peeper (USA - Zone 9b climate)
Sounds like your soil is too rich, probably in nitrogen.
Reply or Post a new comment
Showing 1 - 10 of 16 comments
See comments for all plants

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?

- Alice

Please provide your email address if you are hoping for a reply


All comments are reviewed before displaying on the site, so your posting will not appear immediately

Gardenate App

Put Gardenate in your pocket. Get our app for iPhone, iPad or Android to add your own plants and record your plantings and harvests

Planting Reminders

Join 60,000+ gardeners who already use Gardenate and subscribe to the free Gardenate planting reminders email newsletter.


Home | Vegetables and herbs to plant | Climate zones | About Gardenate | Contact us | Privacy Policy

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.
We cannot help if you are overrun by giant slugs.