Snowdrift Evergreen ClematisEvergreen clematis is one of the finest evergreen vines we offer. Even when not flowering, the leathery evergreen leaves look terrific draped over a trellis, fence or arbor! 2 3" snow white, fragrant flowers cover the vine in late March and early April in our area. Also attractive when planted in containers on a deck or balcony and allowed to twine along railings and down handrails.