Under certain circumstances there is a risk that St. John's wort will not survive the winter without damage. For example, freshly planted specimens in rough locations and species from originally warm regions can suffer frostbite.
How can you overwinter St. John's wort successfully?
When overwintering St. John's wort, sensitive species and potted plants in particular should be protected. This includes cutting back before wintering, covering with leaves, brushwood or compost and, if necessary, wrapping buckets with jute (€12.00 on Amazon) or fleece.
Protect endangered specimens
Basically, you don't have to overwinter your St. John's wort. Most species such as St. John's wort, St. John's wort, beautiful St. John's wort and mountain St. John's wort are well hardy. But sensitive species and those that are in a container or a rough location should be overwintered.
You should keep this in mind when overwintering St. John's wort:
- cut back before overwintering
- cover with leaves, brushwood or a layer of compost
- Wrap potted plants with jute (€12.00 on Amazon) or fleece and place on the protective house wall
Tip
Make sure to water St. John's herbs in the pot sparingly every now and then in winter so that they don't dry out completely! However, you should be careful that excess water can drain away easily.