Hydrangea Flower Annual Or Perennial. Hydrangeas can grow as climbing vines and trees but are most commonly grown as a shrub. But this is not because they arent perennials its because.
Bushes profusely produce huge round flower heads in mid-summer. The most winter hardy variety. Keeping this in consideration are hydrangea flowers annual or perennial.
Hydrangeas are considered perennials because these plants come back every year.
Most gardeners grow hostas for their lovely foliage. Serrata and Climbing hydrangeas H. Department of Agriculture plant hardiness zones 3 through 9If youre not sure which species of this perennial shrub will grow in your area take a trip to your local garden center. See more below Bigleaf H.