vine

Snow Storm clematis

Clematis x triternata 'Snow Storm'

The Story

Plant Bio

Clematis x triternata 'Snow Storm' is a deciduous vine known for its profuse, white flowers that resemble small stars.

Distinctive for its long flowering period and ability to bloom on new growth, providing an extended season of interest.

Uses & Benefits:

Ornamental UsesProvides stunning white flowers and lush foliage, perfect for vertical accents and creating visual interest.
Practical UsesClimbs on structures, saving space and adding privacy.
Ecological BenefitsSupports pollinators and beneficial insects with nectar-rich flowers.

Essentials

At a Glance

Plant Type

Vine

Height

240 inches

Width

120 inches

Light

Full Sun, Partial Sun

Zones

4, 5, 6, 7, 8, 9

Water

Moderate

Humidity

Moderate

Lifespan

Perennial

Native To

Asia and Europe

Toxicity

Toxic to humans and pets if ingested; can cause skin irritation.

Planting

How to Grow

  1. Tuck sturdy trellises or support structures into the soil securely.
  2. Mist cuttings regularly to maintain high humidity and promote rooting.
  3. Plant in well-draining soil enriched with organic matter.
  4. Position in a location with full to partial sun for optimal growth.
  5. Water consistently during the first growing season to establish roots.
  6. Mulch around the base to retain moisture and regulate soil temperature.

Pro Tip

Prune lightly after flowering to encourage vigorous new growth and more blooms.

Keep It Thriving

Care Guide

Do

  • Provide a support structure for climbing.
  • Water regularly, especially in dry periods 🌱
  • Feed with a balanced fertilizer in early spring.

Don't

  • Avoid overwatering to prevent root rot ❌
  • Do not prune in late fall or winter, as it may remove next season's buds.
  • Refrain from planting in poorly-drained areas.

Seasonal Care Calendar

TaskJanFebMarAprMayJunJulAugSepOctNovDec
Fertilize
Mulch
Prune

Watch Out For

Pests & Diseases

Common Pests

Common Diseases

In the Garden

Landscape Uses & Companions

Landscape Uses

Vining on trellises in vibrant garden bordersClimbing over arbors creating shaded patiosVertical accent in cottage-style gardens

Companion Plants

Roses Lavender Daylilies Hostas Salvia

Multiply

Propagation Methods

Good to Know

Common Questions

Snow Storm clematis questions

What zones can Snow Storm clematis grow in?

Snow Storm clematis is hardy in USDA Zones 4–9. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.

Is Snow Storm clematis deer resistant?

Yes — Snow Storm clematis is rated deer-resistant. Deer typically pass it over, though extreme hunger can override any plant's defenses.

When does Snow Storm clematis bloom?

Snow Storm clematis typically blooms in summer to early autumn through early summer. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.

Does Snow Storm clematis need full sun?

Snow Storm clematis does best in full sun to part shade. In hot climates, afternoon shade keeps blooms fresher longer.

Is Snow Storm clematis drought tolerant?

Yes — once established (usually after the first full season), Snow Storm clematis handles dry spells with minimal watering. Water deeply its first year to build the root system that makes that possible.

Keep exploring

Grow Snow Storm clematis with confidence

See it in a design of your actual yard, get zone-matched care reminders, and track it season by season in your garden journal.