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AWARD WINNING

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photo of Wim Snoeijer

Meet the Breeder

Wim Snoeijer
Netherlands

AWARD WINNING

STILL WATERS™

Clematis

Clematis

'Zostiwa'

PP#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 especially striking 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.

Awards
Plantarium Silver Medal
USDA Zone
5 - 9 (-20°F/-28.9°C)
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.

  • Tag: Still Waters™ Clematis
  • Spec Sheet: Still Waters™ Clematis spec sheet
  • Benchcard: Still Waters™ Clematis benchcard
  • Grower Sheet: Still Waters™ Clematis grower sheet

    • Features: Alkaline soil, Vine, Disease resistant

    Filters: Botanical genus: Clematis, Common name: Clematis, Retail program: Proven Winners® ColorChoice®, USDA Zone 5, USDA Zone 6, USDA Zone 7, USDA Zone 8, USDA Zone 9, Exposure: Full sun, Exposure: Part sun, Bloom time: Summer, Purple flowers, Green foliage

    Features: Alkaline soil, Vine, Disease resistant

    Filters: Botanical genus: Clematis, Common name: Clematis, Retail program: Proven Winners® ColorChoice®, USDA Zone 5, USDA Zone 6, USDA Zone 7, USDA Zone 8, USDA Zone 9, Exposure: Full sun, Exposure: Part sun, Bloom time: Summer, Purple flowers, Green foliage