Growing Horseradish

Armoracia rusticana : Brassicaceae / the mustard or cabbage family

Jan F M A M J J A S O N Dec
    P P                

(Best months for growing Horseradish in USA - Zone 5a regions)

  • P = Plant crowns
  • Easy to grow. Plant root pieces. Best planted at soil temperatures between 10°C and 25°C. (Show °F/in)
  • Space plants: 50 cm apart
  • Harvest in 16-24 weeks. Some improvement in flavour if left till after frost..
  • Compatible with (can grow beside): Best kept separate

Your comments and tips

Post a comment or question Display Newest first | Oldest first, Show comments for USA | for all countries
17 Jun 17, Glenn Dahlem (USA - Zone 10b climate)
Are places unusually hot in summer, such as Phoenix, AZ area, too hot for horseradish to grow, assuming it's being watered throughout the summer months?
Reply or Post a new comment
13 Oct 17, (Australia - arid climate)
It's not too hot, but in place like Nul Arbor plain in Aus., better to plant in Winter, & be sure to water.
Reply or Post a new comment
13 Dec 10, Krystyna Clark (USA - Zone 7a climate)
It's 18 degress right now - tonight will be in single digets. Will stay that way for a week - can i still plant horseradish?
Reply or Post a new comment
15 Jan 14, Debbie Schwitzer (USA - Zone 7a climate)
If it is celcius, then yes, otherwise, "Best planted at soil temperatures between 50°F and 77°F."
Reply or Post a new comment
Showing 11 - 14 of 14 comments
See comments for all plants

Yes, ours certainly seems to be stronger after a second year but the roots are very spindly and they are not easy to peel. Any tips on growing a thicker root? However, to make the sauce and not being too keen on hand grating, I first grated the root with the food processor. This gave thin matchsticks but also lots of lumps, then I added some vinegar and used the chopper to cut it finer and it worked well. I also added some hot mustard to give it a bit more zing.

- MIke

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.