Horsetail is a native plant that is well adapted to the environment. She is absolutely hardy. If you keep horsetail in a bucket or at the edge of the pond, you should protect the plant from frost. How to overwinter horsetail.
Horsetail is absolutely hardy
Overwinter pond horsetail
Do not cut down the stems in the fall, but leave them up until spring.
Pour brushwood or leaves over the perennial to protect the roots from very severe frosts.
Overwinter horsetail in a pot
When cared for in the tub, horsetail is not hardy. They should prevent the earth from freezing over.
Place the pot in a sheltered corner on wood or styrofoam. Wrap it with bubble wrap. Water the horsetail occasionally to keep it from drying out.
tips
Japanese horsetail is grown in tubs. Plants in pots overwinter properly by keeping them frost-free and watering them regularly.