What is the hardiest clematis?
Subsequently, one may also ask, what is the best clematis to grow?
Clematis 'Etoile Violette' With an abundance of rich, deep purple flowers throughout summer, 'Etoile Violette' is ideal for growing through an evergreen or spring-flowering shrub. For best results, grow it against a bright background. 'Etoile Violette' grows to 4m.
Beside above, how cold hardy are clematis?
United States Department of Agriculture zone 3 plants need to be hardy through weather temperatures of -30 to -40 degrees Fahrenheit (-34 to -40 C.). Brr. Cold hardy clematis do exist, however, and some even can withstand temperatures down to zone 2.
Herbaceous clematis are best grown through plant supports or into nearby shrubs, while climbing types will need something to twine around, like trellis or mesh attached to a wall or fence.