tabasco--Butterflies love it and I've seen hummingbirds flitting about the blossoms as well. While we've had deer damage in our garden during hard winters, they generally leave us alone during the growing season. They've totally ignored the Heptacodium.
LarryR - no mine has not bloomed, but I put it in a shady spot on purpose. I have a hop hornbeam ( forest tree - not planted ) right above it that I am trying to decide about cutting down. Since it can be brought along as either a single trunk tree or a multi trunk shrub I thought I still had a little time to decide what I want.