We recently had an enquiry about horseradish from a plot holder and how to remove it from your allotment site permanently. We thought it would be useful to share our tips here in case anyone else is having the same problem with this vigorous and hardy perennial.
Process for removal:
1. Dig all the way around the horseradish plant you want to eliminate. Place the elongated, narrow blade of the transplanting spade (or any sharp garden shovel) at least six inches away from the crown of the plant to avoid cutting through any outlying roots.
2. Lift the entire plant from the ground with a garden fork and move it away from the hole.
3. Examine the inside of the hole for any pieces of white root, no matter how small, and remove them.
4. Check the area around the hole for green horseradish sprouts. Dig up and discard any you find.
5. Clean the tools to avoid spreading any small horseradish root particles to other parts of the garden.
6. Harvest as much of the root as you wish to use and dispose of the rest of the plant. The top can be cut off to go in the compost pile, but dispose of the roots in the trash or give them away so they can’t resprout in the compost.
7. Fill the hole back in with soil. Do not till this area of the garden or replant it immediately.
8. Replant the area with whatever you wish when no more horseradish sprouts appear.
Things You Will Need:
– Needle-nose or transplanting spade
– Garden fork
– Remove horseradish plants in the late fall or early spring if you want to get in one last harvest; otherwise dig at any time.
Curious about horseradish?
Alternatively, if you fancy giving this crop a try we recommend growing it in pots or raised beds to keep it under control as it can quickly become invasive. The RHS gardening website has some great growing tips for Horseradish and Riverford has a lovely recipe for a sweeter Apple and Horseradish sauce.
Image source: RHS