The white dogwood pictured here has bloomed reliably since I first brought it home from Home Depot several years ago. It has doubled in height and width since planting. In very dry summers, it does get powdery mildew, but never loses its leaves.
I also have a larger pink dogwood cultivar that I bought from a nursery years before the white one. I would love to show you pictures of its blooms, but there aren't many and most are on the top of tree, requiring you to get up high to see them. The tree has grown well, but has never produced an abundance of flowers. I think this pink cultivar may require more sun than it gets to set blooms.
After seeing so many dogwoods peaking out from the woods on my drive to work this week, I think I may poke a few more into my woodland setting this year. I'll skip the expensive ones at the nurseries and look for a few more from Home Depot. I'm sure those are already on sale.