Home / Plant Library / Horseradish
Herbaceous

Horseradish

Armoracia rusticana

Perennial with edible roots, young leaves. Very easy in OK; nearly impossible to kill; great companion for fruit trees

EdibleMedicinal
At a Glance

What to know before finding it a place.

SunFull sun
WaterMedium water
System layerHerbaceous
Plant typePerennial
Plant spacing12-18 in apart
Mature size2-3 ft / spreading
Chill hours0-500
Soil pH6.0-7.0
HarvestOct–Nov (roots)
Expected yieldAbundant roots
TrellisNo
Central Oklahoma

Growing notes for our conditions.

Regional fit still depends on the actual site—especially drainage, exposure, irrigation, soil and the specific cultivar selected.

Oklahoma notes

Very easy in OK; nearly impossible to kill; great companion for fruit trees

Disease resistance

Excellent

Pruning

Dig and replant roots each fall to keep in bounds

Care

Pungent condiment; extremely vigorous — plant in contained area; repels many pests

Drought tolerance

Moderate; consistent moisture improves performance

Pollination & Production

Plan the partners before planting the tree.

Pollination reference

For fruiting plants, compatible bloom timing and nearby partners can matter as much as the cultivar itself.

PollinationVegetative propagation only
Compatible partners–
Variety Selection

The cultivar can matter as much as the species.

These references help narrow the large number of named varieties to options better aligned with Zone 7A conditions, disease pressure and useful harvest windows.

Zone 7A Recommended Varieties

Common HorseradishMaliner KrenBohemian

These are recommendations carried in the Organix Zone 7A reference database. They are not automatically the same as a cultivar personally proven by Organix on every site; site conditions and availability still matter.

Landscape Role

How this plant can function in a larger system.

Landscape functions

Edible; Repeller; Accumulator

Edible parts

Roots, Young leaves

Companion plants

Potatoes, Fruit trees, Peppers

Community / companion role

Pollination: Vegetative propagation only; Companions: Potatoes, Fruit trees, Peppers

Food-forest layer

Herbaceous

Oklahoma classification

Primary

Soil, Fertility & Care

Support the plant without overcomplicating the system.

Soil preferences

Preferred pH 6.0-7.0

KNF / fertility schedule

Minimal; fall compost

Maintenance

Dig and replant roots each fall to keep in bounds

Use this as a planning reference.

Plant performance varies with microclimate, soil, drainage, water, maintenance and cultivar. Organix uses the library to narrow good candidates, then makes final selections around the actual site.

Edible and medicinal tags describe traditional or practical plant uses in the landscape and are not medical advice. Always verify identification, preparation and individual suitability before consuming a plant.