Clematis ‘Jackmanii’ along with a few additional varieties can be found trellising the well known arbors at Demonstration Garden.  The Clematis ‘Jackmanii’ is a deciduous climbing shrub with 3 inch wide blooms of deep purple flowers fading to violet overtime with a lime green anther.  Disease resistant and vigorous, this climber needs a supporting structure to grow properly and can reach 8 to 10 feet high at full maturity. It is a very good choice for Iowa home gardens.

Facts about this popular variety:

COMMON NAME	FACTS
Scientific Name :	Clematis
Variety, cultivar, or trademark name	‘Jackmanii’
Bloom Time? Color?:	Mid June to September, Deep purple  to blue-violet flowers
Type or Average Life Span:	perennial
Height:	8 to 10 feet at maturity
Width/Spread:	3 to 4 feet at maturity

Good things to know about planting and caring for Clematis x jackmanii.

Clematis x jackmanii will thrive in a well drained soil, slightly acidic to neutral PH soil. It will require at least 6 hours of full sun and an inch of water weekly. Clematis varieties which develop flowers on new growth with do best in Iowa. Each spring it should be pruned well. When planting, bury the crown two inches under the soil surface. Water well and trim to 12 inches or low buds to encourage multiple branching. Clematis likes the roots to stay cool while the top is warn in the sunshine. Therefore, they are well complimented by annuals or other pants around the root base to keep cool but not so close as to crowd. Blooms will be continuous from June as long as into September.

Mulch can provide winter protection for the crowns and will also keep summer roots cool. Clematis makes good cut flowers living up t o 4 days if cut when just beginning to open but may require some support with wire or other floral design materials.