I don't know...even if it never bloomed, I'd grow Snowbank for its beautiful foliage.
Here's a pic of Carol's Snowbank that I took last year when Carrie & I went to her plant swap in TX:
I got a Maya last year & it's done well and I have a cutting of Peaches & Cream...I'll have to be happy with those 2 for now.
USDA Zone 8b
Heat Zone 3
Sunset Zone 5
SeaTac, WA...one cool place