Is the most popular and widely grown deciduous vine which gets covered with a velvety dark purple flowers with four or five sepals, fading to violet over time with white or cream stamens.
Blooms profusely beginning in midsummer and then again with smaller flowers in early fall. May produce double flowers the first time and single the second time.
Can be grown in full sun or light shade, but its base and roots must be completely shaded with perennials, annuals or small shrubs. Need a trellis or other support on which to grow. Grows up to 3m in height.
Prefers moist, well-drained, slightly alkaline soil.
Pruning can be done in stages over a period of years. Each year, prune back 1/3 of the stems above a couple of well-developed buds.
Received Award of Garden Merit of the Royal Horticultural Society’s.
Excellent for growing over fences, porches, walls, trellises, arch, poles, large containers or in a border.