The Clematis ‘Henryi’, Lanuginosa X group, has white flowers with brown anthers that bloom in June and September and range in height of 10-12’ and a spread of 3’. The red flowers are approximately 6-8” wide. Clematis ‘Henryi’ was a winner of the Royal Horticultural Society's Award of Garden Merit and one can see why. The foliage is dark green and makes a great contrast with the flower color. Clematis prefers full sun but will tolerate shade in the morning in a well-drained area.
It is best to avoid heavy pruning on this perennial until it is fully established. Clematis ‘Henryi’ needs a supporting structure to grow properly but will also grow over large shrubs. The tops of Clematis prefer full sun while their roots prefer a cool, shady area. It is best to heavily mulch the root zone to provide this cool, shady area.