Cotton Candy Clematis | Bicolor Vine With Huge Blooms

Vancouver™ Cotton Candy Clematis is a fast-growing, award-winning hybrid that produces 6–8 inch white flowers striped with raspberry-pink, blooming from late spring through early fall.

Cotton Candy Clematis is one of the most distinctive members of Clearview Horticultural’s acclaimed Vancouver Series. If you want a flowering vine that stops neighbors mid-walk—with colossal blossoms that look like hand-painted confections—this is the plant. Each flower opens pure white with vivid raspberry-pink stripes radiating from the center, set off by sunny yellow anthers. It covers fences, trellises, and mailbox posts with a display that lasts from June into September. Below is everything you need to know to buy, plant, and keep this collector’s vine thriving in your yard.

Key Specifications At A Glance

Cotton Candy Clematis is a deciduous, twining woody vine bred for both novice and expert gardeners. Here are the specs that matter when planning where it goes in your landscape.

What Makes Cotton Candy Clematis Different

This is not a common big-box-store clematis. Vancouver™ Cotton Candy is a collector’s plant, sometimes hard to find in the US, but worth the search. The flowers are enormous—6 to 8 inches wide—and each one carries a distinct bicolor pattern: white tepals flushed with raspberry-pink stripes and a central burst of sunshine-yellow stamens. The vine stays manageable at 8 feet, making it ideal for patios, small gardens, and containers.

Don’t confuse it with “Sugar Candy Clematis,” which is a different plant. When you buy, look for the Vancouver™ series label or the botanical name Clematis ‘Cotton Candy’ to be sure you’re getting the real one. Spring Hill Nursery offers full-gallon plants for around $30 with free shipping.

How To Plant It The Right Way

The planting depth and site prep make or break this clematis. Clematis needs its “head in the sun and feet in the shade”—cool roots, warm flowers.

Step-by-Step Planting

1. Dig the hole deep — plant the crown 2–4 inches deeper than the nursery pot. Cover the crown and part of the stem with soil. This encourages strong stem growth and protects against wilt.
2. Add superphosphate — mix a small handful into the planting hole for root development.
3. Backfill and water — use the native soil; no amendments needed beyond the phosphate. Water deeply to settle.
4. Mulch carefully — apply 3 inches of mulch in a ring 5–6 inches from the base. Do not let mulch touch the crown or stems.
5. Install support — a trellis, obelisk, or sturdy wire. Tie the stems loosely with garden tape; tuck stems through the trellis as they grow.

After planting, the first spring: cut all stems back to the lowest pair of healthy buds. This sounds harsh but builds a bushier, more vigorous plant.

Fertilizer Schedule That Actually Works

Heavy nitrogen pushes leaves, not flowers. Stick to this two-fertilizer rhythm:

• Early spring — when new buds are about 2 inches long, apply a low-nitrogen 5-10-10 fertilizer.
• Mid-season — switch to a balanced 10-10-10 every 4–6 weeks through the bloom period.
• Post-bloom — resume light feeding after flowering finishes to support root and stem health for winter.

White Flower Farm’s official clematis growing guide lays out this exact schedule with timing details.

Watering And Soil Must-Knows

Cotton Candy Clematis wants rich, well-drained, moist soil with a neutral pH. If your soil runs acidic, add garden lime at planting. Standing water kills the roots fast—if your yard has heavy clay, plant in a raised bed or a large container.

Water weekly during the growing season. In hot weather or if planted in a container, water deeply twice a week. The root zone should feel cool and damp but never soggy.

Pruning: The One Rule That Saves The Plant

This is Type 1 clematis, which blooms on old wood from last year’s growth. The pruning mistake that kills flowers: cutting it at the wrong time.

Common Mistakes That Sabotage Blooms

Most clematis failures come down to four errors, all preventable:

• Planting too shallow — if the crown sits above ground, stem count stays low. Bury it 2–4 inches deep.
• Letting the roots bake — sun on the root zone stresses the plant. Shade the base with low perennials, a flat stone, or extra mulch.
• Heavy nitrogen fertilizer — produces a leafy, flowerless vine. Stick to the 5-10-10 / 10-10-10 schedule.
• Pruning at the wrong time — see the table above. If you prune in fall or spring before bloom, you lose that year’s flowers.

Where To Find Cotton Candy Clematis

Because it’s a collector variety, availability varies. Spring Hill Nursery and Brushwood Nursery both carry full-gallon plants with free shipping. Weston Nurseries lists it as a Type 1 vine with full growing specs. Prices run around $25–30 per plant. Order early in the season—stock sells out fast.

When the plant arrives, inspect for fungal wilt. Remove any affected leaves immediately and sterilize your pruners with a 10% bleach solution between cuts. Good air circulation and deep planting are your best defenses.

Checklist: What This Vine Needs To Thrive

• ☐ Deep planting hole (crown 2–4 inches below soil)
• ☐ Full sun with shaded, cool root zone
• ☐ Rich, well-drained, neutral soil
• ☐ Low-nitrogen spring fertilizer (5-10-10)
• ☐ Balanced 10-10-10 during bloom season
• ☐ Weekly deep watering; extra in heat and containers
• ☐ Light pruning only after flowering
• ☐ Winter mulch in Zones 4–6; remove in early spring
• ☐ Sturdy trellis or support for 8-foot mature height

Stick to these nine items and your Cotton Candy Clematis will reward you with two decades of those unforgettable pink-striped blooms.