Sure, I'm happy to share some thoughts! I've grown Cotinus in my garden for a few years now, and it's been a rewarding experience. In terms of variety selection, 'Royal Purple' has always been my go-to for its striking deep color. If you're after something with a bit of a twist, the 'Golden Spirit' can add a pop of bright color, especially in summer.
In your climate, it should do just fine. They're fairly hardy, but make sure the soil drains well to avoid any root issues during wet periods. Full sun is best for vibrant leaf colors, but they can adapt to partial shade too.
Maintenance is straightforward—mostly, it's about shaping, which I do in early spring. Just watch for mildew in humid weather, and you'll be set. For a complementary look, I've found that pairing it with lavender or even some silver-leafed plants like Artemisia looks fantastic. Let me know if you have more questions!