Basically put butterflies eggs in wooden houses. Caterpillars need special Foodplants Tagpfauenauge the nettle, the Brimstone Buckthorn, etc. etc. Peacock and Brimstone can overwinter as butterflies, Bläulinge my knowledge just as a caterpillar .... This raises the question of meaning of the product, as only a few butterfly species overwinter and staying Falter on bushes and plants ......
