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

10 Jun 21, mike (South Africa - Summer rainfall climate)
Hello Daisy, I need horseradish root for purpose of making a tonic. I could do with about 1-2 Kg. Can you assist ? I inquired with Gardenate, and followed up on your comment. I live in Midrand, betweenJjoburg and Pretoria. Thanks. Sincerely, Mike Habib
22 Dec 20, Herb (South Africa - Summer rainfall climate)
Hi! I am in East London and I trying to secure some horseradish root to start my home grow. Please advise where I can obtain some viable plant material.
11 Aug 20, lehlomela stanley phakisi (South Africa - Humid sub-tropical climate)
please help.i am looking for fresh horseradish roots.my number is 0822546648
12 Aug 20, (South Africa - Summer rainfall climate)
Look up seed selling website in S A.
31 Jul 20, Christiane Kennedy (New Zealand - cool/mountain climate)
where in dunedin can you buy Armoracia rusticana also known as horseraddish root?
03 Aug 20, Anon (New Zealand - sub-tropical climate)
Look up seed selling website in NZ.
30 Jul 20, Quaid (USA - Zone 6b climate)
I bought some horseradish a couple weeks ago that i have in peat moss inside the house. If i plant them outside in early autumn, can i leave them outside over winter?
20 Jun 20, Michelle Metcalfe (Australia - tropical climate)
I bought mine on ebay.
12 Jun 20, Sarkis Garginian (Australia - temperate climate)
Where I can buy Horseradish root in Melbourne?
25 Jan 21, Per Elling (Australia - tropical climate)
I bought the Horseradish cuttings from eBay. They were sent from Springvale in Melbourne. Fast and easy and they all took off
Showing 41 - 50 of 525 comments

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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