Horseradish (Horse radish, Horseradish root) (Armoracia rusticana)


Cabbage family (Brassicaceae or Cruciferae)

Horseradish (Horse radish, Horseradish root)


Dill, Thyme
glyphicon <%# Eval("Title") %> Division: from October to November
glyphicon <%# Eval("Title") %> Planting: from March to end of April
glyphicon <%# Eval("Title") %> Distance: 60.0 cm x 50.0 cm
glyphicon <%# Eval("Title") %> Height: 60 – 120 cm
glyphicon <%# Eval("Title") %> Harvest: Year 1: 28 weeks after planting, year 2: from January to April, from end of October to March
glyphicon <%# Eval("Title") %> glyphicon <%# Eval("Title") %> Habitat: sunny, partial shade
glyphicon <%# Eval("Title") %> Good Neighbours: Potatoes
glyphicon <%# Eval("Title") %> Take note that horseradish can spread quite widely in your garden through its lateral roots which produce the rosettes of leaves.
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Horseradish can grow to a height of 50 to 120 cm.
The plant's cylindrical root normally reaches a length of 30 to 40 centimetres and a diameter of 4 to 6 centimetres.
Its flower appears in the second year.
Horseradish can spread quite widely in your garden through its lateral roots which produce the rosettes of leaves.


It prefers a sunny position in light, deep garden soil which is always moist.


Horseradish is propagated via root cuttings.
These cuttings, about as thick as a pencil, are planted in spring.
Before planting the root cuttings, rub them down vigorously with a cloth to remove unwanted side buds.
Put the cuttings slightly slanted into the soil and cover the top end with about 5 cm and the bottom end with about 15 cm of soil.
As horseradish tends to proliferate uncontrollably, it is a good idea to plant the root cuttings in a bucket with small air holes, or to enclose it using a root barrier so that the plant doesn't turn into a plague.





Plants that are well suited for next year cultivation:

(not specified)


The following plants should not be planted in the following years:

How many years: Not to plant:
3 – 4 year(s) Horseradish


It is winter-hardy, withstanding temperatures down to -50°C so no protection is needed.


Regularly fertilise, water and hoe weeds.


Pests: Cabbage white butterfly, mice and cockchafer grubs (small worm), which eat the roots, mustard beetles, horseradish flea beetles
Preventative measures:
Water and mulch regularly (common tansy or peppermint)
Control: Collect the caterpillars, control cabbage white butterflies with ichneumonidae (scorpion wasps) which are available from garden centres.

Diseases: Fungal and viral diseases.
Due to the vegetative propagation, it is easy for virus infections to be transmitted.
Preventative measures: Use strict crop rotation.


Harvesting begins as soon as the leaves die back, in late autumn. Harvest all parts of the root as otherwise, horseradish will reappear in subsequent years to become a weed.
Root cuttings can be taken immediately after the harvest, cut diagonally from the horseradish root.
Put the root cuttings in soil or sand and wrap with newspaper to keep in a cool, dry location so that they can be planted in the next spring.


Clean off root fibres, side roots and excess soil from the roots. Put them into moist sand and store at a temperature of -5°C.


Horseradish has been grown as a spice since the middle ages.
For medicinal purposes, horseradish is used to strengthen the body's immune system and to protect from colds.
Horseradish is not suitable for stomach or intestinal ulcers.
When isolated, undiluted horseradish oil is poisonous.


Location of your garden:   (Unknown Address)