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 New Zealand - cool/mountain regions)

  • P = Plant crowns
  • Easy to grow. Plant root pieces. Best planted at soil temperatures between 50°F and 77°F. (Show °C/cm)
  • Space plants: 20 inches 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

15 Aug 11, Anna (Australia - temperate climate)
Hello - can anyone help me locate some fresh horseradish to plant in WA please? Thank you for your help! Anna
20 Feb 14, Kappie (South Africa - Summer rainfall climate)
Hi can anyone help to find fresh horseradish plants
19 Aug 11, Annette (Australia - sub-tropical climate)
Hello Could any one please tell me when to harvest horseradish? how do I know its ready ? Please, thank you :)
21 Aug 11, arthur (Australia - temperate climate)
Anna you could try dawsons or ring 9358 4811 Nursery and garden Industry of W.A they are very helpful.Arthur the mad gardener. Horseradish.
01 Sep 11, Olessya (Australia - temperate climate)
Hi Ted, Could you please sell me horseradish roots? I am looking for it all over the place but haven't found yet.
01 Oct 11, Jen (Australia - cool/mountain climate)
I grow my hradish in deep pots and after harvesting and grating to preserve with AC vinegar etc it turned out very, very mild?? Not at all hot as I was expecting? Any idea's why?
27 Oct 11, (Australia - arid climate)
Apparently it depends on when you add the vinegar for the degree of hotness. The recipe I found on the net said vitamize and then add the vinegar at the very end for maximum bite. Mine made this way was very spicey.
16 Nov 11, Jen (Australia - cool/mountain climate)
Thank you .... anonymous for your tip I shall try next season and hope for a bit more zing to the otherwise delicious condiment Jen
22 Jan 12, Peter (Australia - sub-tropical climate)
Hi, if you want your horseradish to be hot, leave it for 2 years in the ground - the older it is the hotter it gets. It does become woody so grating it is a problem. Back in Russia we'd leave the root over winter and in spring it would regrow, then at the end of season its harvested. I'm not sure it would work in Australia unless where you live winter is frosty.
23 Jan 12, Jen (Australia - cool/mountain climate)
Thank you Peter for your suggestion, I have not harvested my horseradish last autumn / winter as I still had jars preserved from the previous year..So it will suit my pantry very well to harvest in the 2nd year at the end of this year. Thanx
Showing 41 - 50 of 523 comments

Just thought I'd mention I found horsradish plants at Mitre 10 today in Westport. I've been looking for it for a very long time so was very happy. Other Mitre 10 store may have it now.

- Shelley Johnson

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