Clematis x jackmanii, commonly known as Jackmanii Clematis, is a classic and popular vine that produces large, deep purple flowers with contrasting yellow stamens. It is a vigorous climber and is perfect for trellises, fences, or containers.

Clematis grow best in a rich, moist to average, well-drained soil, in full sun. Protection from intense afternoon sun is beneficial. Large flowering bi-colours, reds and blues, may fade quickly if planted in direct sun. Roots need a cool environment to thrive; it is recommended to plant a ground cover or shallow-rooted perennial to shade the roots; mulching is suggested. Plant the crown 3-5 cm below the soil's surface. Clematis are slow to establish and initially need to be tied to a trellis or fence to begin climbing.