Our Vancouver West End balcony, facing north 8 storeys above a dumpsterous alleyway, has hosted more than 2 dozen species of birds that we know about. One apparently graced us with a Salmonberry plant, which is now a robust foot-or-18-inches in height, in its own pot. It is all leaves. When I was asked when the berries would come, I replied that the young plant has a distinct paucity of flowers—none—and then, of course, I was asked when the flowers would come. Well, not this year, I suppose; but I haven't been able to explain just how our under-age salmonberry actually goes from being all leaves to producing flowers. What happens? Can someone please explain? Thank you very much.