Italian Clematis
Clematis viticella 'Prince William'
Essentials
At a Glance
Plant Type
Vine
Height
96 inches
Width
36 inches
Light
Full Sun, Partial Sun
Zones
4, 5, 6, 7, 8, 9
Water
Moderate
Humidity
Moderate
Lifespan
Perennial
Native To
Southern Europe
Toxicity
Mildly toxic if ingested; can cause skin irritation.
The Story
Plant Bio
Clematis viticella, or Italian clematis, is a vigorous, deciduous climbing vine native to Southern Europe. It is known for its hardiness, disease resistance, and profuse, often bell-shaped flowers in summer. The cultivar 'Prince William' is not widely recognized. Cultivars of C. viticella are prized for their long bloom season from summer to fall and their tolerance of various growing conditions.
Bloom Period:
Uses & Benefits:
Marketplace
Where to Buy
Shipping costs Year-round shipping Free shipping
Planting
How to Grow
- Tuck young vines into a sturdy trellis or arbor for support.
- Mist cuttings regularly to maintain humidity during propagation.
- Plant in well-draining soil enriched with organic matter.
- Water deeply once a week during dry spells for optimal growth.
- Prune after flowering to promote vigorous new growth.
- Mulch around the base to conserve moisture and suppress weeds.
Pro Tip
Provide a sunny or partially shaded spot for best flowering and growth.
Keep It Thriving
Care Guide
Do
- Water regularly to keep soil moist but not waterlogged 🌱
- Prune after flowering to maintain shape and encourage blooms
- Feed with a balanced fertilizer in early spring
- Support with trellises or arbors for climbing
Don't
- Avoid overwatering, which can lead to root rot ❌
- Don't prune in late summer or fall, as it may remove next year's buds
- Avoid planting in heavy clay soil without proper drainage
- Don't neglect support structures for climbing growth
Seasonal Care Calendar
| Task | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Fertilize | ||||||||||||
| Mulch | ||||||||||||
| Pest Check | ||||||||||||
| Plant | ||||||||||||
| Prune |
Watch Out For
Pests & Diseases
Common Pests
Common Diseases
In the Garden
Landscape Uses & Companions
Landscape Uses
Companion Plants
Multiply
Propagation Methods
Good to Know
Common Questions
Italian Clematis questions
What zones can Italian Clematis grow in?
Italian 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 Italian Clematis deer resistant?
Yes — Italian Clematis is rated deer-resistant. Deer typically pass it over, though extreme hunger can override any plant's defenses.
When does Italian Clematis bloom?
Italian Clematis typically blooms in mid-summer through late summer. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.
Does Italian Clematis need full sun?
Italian Clematis does best in full sun to part shade. In hot climates, afternoon shade keeps blooms fresher longer.
Is Italian Clematis drought tolerant?
Yes — once established (usually after the first full season), Italian Clematis handles dry spells with minimal watering. Water deeply its first year to build the root system that makes that possible.
More Clematis to compare
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Clematis viticella 'Tie Dye'
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Clematis x jackmanii 'Dr Ruppel'
Yuan Clematis
Clematis viticella 'Yuan'
Burning Love Clematis
Clematis x cartmanii 'Burning Love'
Viva Polonia Clematis
Clematis x hybrida 'Viva Polonia'
Tsukiko Clematis
Clematis x durandii 'Tsukiko'
Keep exploring
Explore the genus
Collections featuring this plant
Grow Italian 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.
