All horsetail species are absolutely hardy. This also applies to pond horsetail, which is grown as an ornamental plant on the edges of ponds. You only need to overwinter pond horsetail if you keep it in a bucket.
Does pond horsetail need to be overwintered in winter?
Pond horsetail is hardy and does not require any special wintering. It stays in the garden, but it should be overwintered in the pot in a frost-free, bright place without direct sunlight. Shade on sunny winter days can be helpful.
When do you need to overwinter pond horsetail?
Pond horsetail is evergreen and is therefore valued as a decorative ornamental plant on ponds. Just like the winter horsetail, this type of horsetail is completely hardy and does not need any special wintering.
What causes problems for the plant in winter is strong sunlight. It may therefore be advisable to provide some shade on very sunny days. Pond horsetail is not cut before the winter break. The stems remain standing until spring and are only then shortened if necessary.
When caring for pond horsetail in a pot, you must overwinter the pot frost-free in a bright but not sunny place.
Tip
Like swamp horsetail and winter horsetail, pond horsetail is poisonous. In contrast, field horsetail or horsetail is non-toxic. The plant, which is feared as a weed, is even edible.