STILL WATERS™

Clematis

Clematis

'Zostiwa'

USPP 20,372

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Cool blue single flower of Still Waters Clematis Flower covered Still Waters Clematis in greenhouse Close up of pale icy blue Still Waters Clematis flowers YouTube video describing the plant shown on this page
  • Disease resistant
  • Long blooming
  • Easy care
Description

It's cooler than cool! Large, icy violet-blue flowers cover Still Waters™ clematis. Early flowering, long-lasting blooms appear from late spring to late summer. Unusual flower color would look especialyl strikin planted with a dark-leafed shrub like Black Lace® sambucus, or grown on its own on a trellis or fence. It also makes a good cut flower. Blooms on old and new wood.

USDA Zone 5 - 9 (-20°F/-28.9°C)

icon visually displaying the size and shape of this plant variety

Exposure Full sun, Part sun

Height 4 -7'

Width 3 - 5'

Finish Time 1 season

Type Deciduous

Bloom Time Summer

Flower Color Purple

Foliage Color Green

Liner Sizes 2 1/4", 4", Quick Turn

Soil The right soil is key to success with clematis. It must be cool, and well-drained but moist.

Pruning Prune back to 2' in spring.

Uses Trellises; mixed borders; perennial beds; vertical gardens; containers.

Growing Tips "Feet in the shade, head in the sun" - that's the old adage for success with clematis. This vine will thrive if mulch, a rock, or neighboring plants are positioned to keep the roots and base of the plant in cool, shaded conditions, while the leafy vines themselves bask in the sun. Provide a sturdy structure for vines to climb on at planting time.