Jackmanii Clematis Vine

Clematis 'Jackmanii' is a vigorous deciduous climber with velvety violet-purple flowers. It suits a wall-side border or sturdy trellis, where its summer display can be seen up close. The RHS lists a mature height of 2.5–4 m and spread of 0.5–1 m. [RHS profile](https://www.rhs.org.uk/plants/96731/clematis-jackmanii-ll/details) ## Seasonal Interest Large flowers open from early to late summer, with purple sepals around pale greenish-cream anthers. The plant climbs by twining leaf stalks, so provide wires, a trellis, or another support and tie in new growth as needed. The RHS identifies this selection with pruning group 3. [RHS profile](https://www.rhs.org.uk/plants/96731/clematis-jackmanii-ll/details) ## Growing Conditions Choose full sun or partial shade and moisture-retentive, well-drained soil. Keep the roots and base cool and shaded with nearby plants or pebbles. Plant the crown 5–8 cm deep to encourage replacement shoots. [RHS profile](https://www.rhs.org.uk/plants/96731/clematis-jackmanii-ll/details) ## Maintenance Prune group 3 stems hard in late winter, cutting back to the lowest pair of buds. This keeps flowering growth near the support and limits tangling. [RHS pruning guide](https://www.rhs.org.uk/plants/clematis/pruning-guide)