The native Betula pendula supports around 300 species of insect so clearly is great for wildlife. Can anyone help me find out if the non-native Betula utilis versions (Himalayan birch) so popular in horticulture is as useful e. g as a food plant for caterpillars etc.
I'm struggling to find anything definitive and would like to help my garden clients in making informed choices for nature. Thanks!
It may be worth trying Butterfly Conservation as they should have food plant specifics for all stages of the lifecycle. I'm afraid I can't link it coz I'm on my phone and technically a bit rubbish Hope info is of use though.