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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19 Oct 19, Anna Frampton (New Zealand - temperate climate)
I’ve just acquired some in Southland. I’ll grow it up this season and can pass some root on to you in autumn/winter if you’d like? If you send me your email address, I can let you know when I harvest it.
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10 Nov 19, Kristina (New Zealand - temperate climate)
Hi Anna, Can I have some of yours later? I live in Northland. My email is krissim2015@gmail.com Thank you.
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10 May 19, Marg Hanley (Australia - temperate climate)
I’m going to to establish a herb garden All advice appreciated Thanks
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10 May 19, Fred Ericsen-Miller (Australia - temperate climate)
where can i get horse radish plants and where can i buy HOT horse radish
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21 May 19, Geoff (Australia - temperate climate)
You buy small root pieces. Plenty on ebay tho expensive or I have some on FB marketplace.
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05 Apr 19, Alan Russell (New Zealand - temperate climate)
I want to buy some horse radish roots here in Auckland... any gardeners that have some please email... thanks Alan (Gardenate does not allow sales advertising - perhaps you could arrange an exchange ?)
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31 May 19, Lucy (New Zealand - cool/mountain climate)
I have plenty of horse radish, but I live in United States and I don’t know if I can send the roots over seas. If I can mail the roots I will. Does anyone know?
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10 Jun 19, Robin (New Zealand - cool/mountain climate)
New Zealand has strict quarantine laws when it comes to importing fruit, herbs and vegetables.I am sure they would not let it come in.
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15 Feb 19, Vera (New Zealand - sub-tropical climate)
Hi, I would love to plant horseradish in my Waihi garden. Is there anyone in the area who can spare a piece of root? Cheers, Vera
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13 Feb 19, (New Zealand - temperate climate)
Found this site looking for where to put my horseradish and saw someone wanted echinacea. I have some.
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Showing 81 - 90 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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