Extremely cold-hardy Viburnum carlesii is hardy from zones 2 – 8. Chinese snowball viburnums have the largest, showiest, and, dare we say, the floofiest of all snowballs. These multi-flower ...

Gardeners who want a plant with massive white balls of flowers, but without the Japanese snowball's invasive tendencies, should instead consider the Chinese snowball (Viburnum macrocephalum ...