Do Aster Plants Survive Winter?

Asters have good winter hardiness, reliably surviving winters in Zones 4 to 8. As with most perennials, winter survival hinges on having aster plants in the right type of soil. Tuck asters into soil that's fertile and well-drained. Soil that stays wet and drains poorly in winter can kill aster plants.

Do asters come back every year?

Asters that are planted in your garden in the spring will bloom in the fall. For late-season planting, you can purchase them already in bloom for fall color. They'll more than likely return next year, as long as you get them in the ground about six to eight weeks before the ground freezes in your area.

What do you do with asters in the winter?

Make sure the ground is moist but not soaked. Cut the asters down to the ground after the ground freezes. Cover the asters with 2 to 3 inches of mulch to protect the roots during the winter.