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 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

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12 Dec 13, Lilly (Australia - temperate climate)
please let me know when to harvest my horseradich Im in engadine NSW
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04 Apr 14, Gaye (Australia - temperate climate)
Hi Lilly, saw your post and was wondering where you bought your horseradish. I also live in the Sutherland Shire in Sydney. Would appreciate if you could advise. Cheers, Gaye
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11 Dec 13, Suzie Pickering (South Africa - Semi-arid climate)
I would like to know that too. Have been looking everywhere, can't find it.
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19 Sep 14, alan (South Africa - Summer rainfall climate)
i have the plants you can phone me at 0832472372
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28 Nov 13, Frances (New Zealand - sub-tropical climate)
I have grown horseradish several years in a row & havent managed to harvest a decent root yet. It sprouts up year after year but is all leaf & no useable leaf. What am I doing wrong?
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24 Apr 15, Lynne (New Zealand - sub-tropical climate)
I haven't grown it yet and have just bought a small plant. Plant in the full moon week as it is for root growth.
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11 Nov 13, Oscar (Australia - temperate climate)
I have some leaves sprouting out of one horse raddish plant. How do I get a few plants out of one plant ? Thank you
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09 Oct 13, Callum (New Zealand - sub-tropical climate)
I got mine from kings plant barn on the weekend. They had to order it in but it only took 2 weeks and cost $4
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06 Oct 13, Wally (Australia - temperate climate)
Do I need to dig up all my horseradish or just what I need to make horseradish recipe. If I need to dig all how and for how long can I keep roots
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02 Mar 14, Rene Blin (Australia - temperate climate)
under no circumstance leave pieces of root in an unconfined area as it multiplies ex potentially and becomes very hard to eradicate. i have dug up and confined any and all my 'cuttings/broken pieces' which sprouted from residues of deeply sited broken roots into plastic bags of 'growing compost'....good luck with the 'digging up'!
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Showing 361 - 370 of 527 comments
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Margaret, I haven't found the perfect time, the size of the leaves don't tell me anything. Last week I did use some, just scraping away surrounding soil and seeing the thickness of the root helped, the root was fairly thick, about the same as two fingers plus a little more. Getting it out is the hard part, the roots go down a long way so I cut the amount I needed and replaced the soil. Be careful if you do this because the root is very strong, a serrated knife worked o.k

- Roy

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