Our home renovation is done, so now we're moving on to landscaping. Very new at gardening, but I'm looking for a hygrengea with blooms that will stay as much white through the season as possible. I am not looking for one that turns pink or maroon. As for the height, I need one that is 3-4' tall. After internet searching, it seems that the Incrediball and Annabelle grow too tall but the dwarf plants are too short. Thank you! Your help is appreciated.