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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21 Feb 14, Peter Smith (Australia - temperate climate)
If you are after the plant, it is usually available in spring. I bought one from Bunnings (Hoppers Crossing), which died. What I have growing now is from a friend.
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26 Dec 13, Matt from Canberra (Australia - cool/mountain climate)
I bought some horseradish through the post from living-mudflower.blogspot They also had a bunch of other perennial vegetables and herbs and seeds for sale. I think they are in NSW somewhere.
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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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Showing 361 - 370 of 529 comments
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As regards horseradish, I have grown this plant, but in my opinion, it would be a mistake to think you can plant it in April and harvest in 24 weeks time and have a useful root. For Horseradish to get a nice thick root, with the distinct pungent flavour, it takes a good two years per plant. And do not underestimate how much work it is to clean the dirt out before shredding the root. It is a wonderful taste and worth the hard work, but in my experience, you need to set up a dedicated bed, plant the roots and then prepare to wait a few years to get the cycle of having a constant supply of usable nice thick roots. The roots grow very deep into the soil (a good 2-3+ feet) so it is a good idea to leave some room around each group of plants, because you need to dig quite a wide hole to get the roots out. We always harvest at Easter here in Sydney. Bon apetit.

- Pauli

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