For a long time, it was accepted 'knowledge' that the best plants for wildlife to grow in gardens were 'native' plants.
It was the Biodiversity in Urban Gardens in Sheffield (BUGS) project, driven by the uncompromising Dr Ken Thompson, that began to challenge that assumption. After all, what plant do we all consider the best for nectaring butterflies? Yes, Buddleia, from Asia (although now there are concerns…