It was in that spot about 5 years, maybe 6. It grew really well there, but never got as tall as it should have. I've had plenty of other clematis grow their full height in the first year I planted them, so I really think this one wasn't going to ever get as tall as it was supposed to. The new one is already taller than this one is, so I'm happy!
That Jackmanni is amazing! It's got a trunk! I think it's been there about 15 years, and is very happy!