Hydrangeas on the Prairies ?
Last night as we walked around the upscale development of Terwilliger Park in south Edmonton, I was surprised to see several types of hydrangeas apparently thriving ... well, okay, most had been in the ground for only a year or two, but they sure we're looking good! I think what I had seen were grandiflora hydrangea 'Pee Gee' and it's similiar varieties such as 'Quick Fire'. Most were about three feet in height and loaded with their large clusters of cone shaped flowers. Then against the south and west side of someone's home, there were several plants of macrophylla 'Endless Summer' ... a nice surprise indeed! These have those large blue and pink mopheads.
I'm just wondering if these are truly hardy in the Edmonton area, OR if the DEEP snows of last winter and mild winter of '05 had been the major contributing factor to their success to date? I know 'Endless Summer' requires winter protection.
I'm familiar with hydrangea arborescens 'Annabelle' and it's huge white flower clusters, but beyond this one, what hydrangeas are you seeing thriving in your neighbourhood?