Clematis × jackmanii
Jackman's Clematis

Family:

Ranunculaceae (Buttercup Family) 26

Genus:

Clematis (Clematis) 11

Plant Type:

Liana (Climbing Vine) 43

Growth Forms:

Climbing 26

Hardiness:

USDA Zone 4 513

Deciduous / Evergreen:

Deciduous 828

Flower Notes:

Purple (Flowers with beautiful violet purple sepals (4-7" dia.) in early summer)

Foliage Notes:

Green (Clasping summer foliage; no fall color (brown))

Fruit Notes:

Cream (Interesting achene with a long, persistent style covered in long, silky hairs)

Ultimate Height:

18 feet

Ultimate Spread:

18 feet

Fruiting Times:

Light Requirements:

Soil Notes:

Prefers cool, moist, well-drained soil

Range:

Hybrid origin

Diagnostic Characteristics:

Leaves simple, opposite, pinnately compound, the upper ones often simple (2-4.5" long), and cordate at base. Some pubescence usually occurs on lower surface.

Special Characteristics:

Fast Growth Rate 226

Specimen 624

Trellis/Post/Fence Climber 28

Additional Information

The Jackman Clematis is a hybrid with large, rich purple sepals that develop on new growth. The root system should be kept cool by deep soil preparation and mulching around the base. It is said that Clematis prefer "a warm top and a cool bottom". While this is generally true, provide some shade to the top portion during the day for the best results. Climbs by twining stems and clasping leaves, so it needs a trellis or wire support. Leaf spot and stem rots can be serious problems.