More info about our plant sizes.
From John Boggan, B. 'Early Bird', a cross between B. grandis and B. grandis (syn. sinensis) 'Shaanxi White' grows a bit smaller than typical B. grandis; leaves are a bright lime green (almost chartreuse); flowers are pale pink and it starts to bloom several weeks earlier than B. grandis (hence the name). Best in full to bright shade. Culture & hardiness are same as B. grandis and it has the same colonizing tendencies. I think the foliage color is the best thing about it. -John Boggan
Minimum temperature: -10° F