Why Is Pagoda Tree Not Flowering And How Can Flowering Be Encouraged

Question From: Comox, British Columbia, Canada
Q: Our Pagoda Tree is at least 35 years but has yet to flower. We live in Comox on Vancouver Island (East side and thus temperate - think of Seattle) and we take good care of it. Can you hazard a guess as to why it has not flowered and, better yet, what we can do to encourage it to do so? Thank you. Douglas Coleman

A: Sorry Douglas, I have no experience with Pagoda trees. I live in Michigan. I'd visit or contact by email your botanical garden in Vancouver. Best And Happy Yardening, Nancy