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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06 Feb 17, Sue (Australia - temperate climate)
Is it best grown in full sun or shade
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08 Feb 17, John (Australia - temperate climate)
Horseradish will grow in full sun or part shade. It is a very hrdy plant and will spread rapidly in good conditions. To contain it you can plant it in a large planter pot and sink the pot into the ground. Horseradish loves damp conditions and in this situation will produce the best roots but will still do well with less water. Trust this helps
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18 Jan 17, Peter (South Africa - Summer rainfall climate)
Any one in the Pretoria region, contact me if you want horseradish plants/root. Peter:- [email protected]
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20 Feb 17, Shernel Moonsamy (South Africa - Dry summer sub-tropical climate)
I would like to have ... but I'm on the east rand
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07 Feb 17, Marietjie (South Africa - Semi-arid climate)
Good day, if there are still left over I would like to have some
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21 Jan 17, Selaelo (South Africa - Summer rainfall climate)
I am in johannesburg but i reguarly go to pretoria, how can we meet, i need horseradish
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30 Dec 16, Liz (Australia - temperate climate)
It's 30th Dec 2016, my horse radish leaves are about a foot long, should I dig it now, if not, when thanks
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03 Jan 17, John Mauger (Australia - temperate climate)
Horse radish would normally be harvested when it is dormant but there's no reason why you couldn't dig down beside the plant an bandicoot a few roots for your favourite source! Horseradish is very hardy and any piece left in the ground will grow. Trust this helps.
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22 Dec 16, Pat (Australia - temperate climate)
When should I harvest my horseradish ? Very leafy i its own raised bed and looking real healthy
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24 Dec 16, John (Australia - temperate climate)
Horseradish would normally be harvested in the winter when it is dormant but there is no reason why you couldn't dig down beside the plant and raid a few root pieces. the plant is almost indestructable and any small pieces of root left in the ground will grow. keep the manure, water and mulch up for good quality roots. trust this helps.
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Showing 181 - 190 of 526 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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