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The Cosmea must be dug out for the winter
Can you overwinter the Cosmea?
The Cosmea is usually sold as a one-year ornamental plant and is not hardy. But there are some species that are perennial and root tubers form. These can be overwintered in a similar way as dahlias.
The perennial species include, for example, the chocolate-scented Cosmea atrosangiuneus. Because of its fragrance, the black-red blooming cosmea is also called chocolate flower. Dig out the root tubers and store them dry and dark at about 5 ° C. In May, the Cosmeen are then planted in the garden again. Container plants overwinter at the same temperatures, are only occasionally poured and not fertilized.
Winter tips for perennial species of Cosmea:
Tips
Inquire immediately when buying your Cosmea, whether it is a perennial species, because only then is worth the winter.