Flower Color: Dark Blue Flower Form: Pendulous Racemes Flowering Period: Early Spring Mature Height: 8-30′(3-10m) Pruning Requirement: Prune to Shape Planting Aspect: Full Sun Cold Tolerance: USDA Zone 4 Price Group: 2 About Wisteria floribunda Aunt Dee A vigorous climber for large walls, fences etc. and can be trained into a small weeping standard. Aunt Dee with its light lilac-purple fragrant flowers has a longer flowering period than the norm.