
Durand's Clematis
Clematis x durandii 'I Am Happy'
Essentials
At a Glance
Plant Type
Vine
Height
72 inches
Width
36 inches
Light
Full Sun, Partial Sun
Zones
4, 5, 6, 7, 8, 9
Water
Moderate
Humidity
Moderate
Lifespan
Perennial
Native To
Hybrid origin
Toxicity
Toxic if ingested; can cause skin irritation
The Story
Plant Bio
A long-blooming, non-clinging hybrid clematis that can be trained on a support or allowed to scramble. Features large, indigo-blue, saucer-shaped flowers from summer to fall. Notable for its strong growth habit and abundant flowering.
Bloom Period:
Uses & Benefits:
Marketplace
Where to Buy
Shipping costs Year-round shipping Free shipping
Planting
How to Grow
- Select a sunny spot with well-draining soil for planting.
- Tuck young plants into the soil, ensuring roots are well covered.
- Mist cuttings regularly to maintain humidity and promote rooting.
- Stake or support the vine as it grows to encourage vertical development.
- Water consistently during the first growing season to establish roots.
- Apply a balanced fertilizer in early spring to promote healthy growth.
Pro Tip
Use a sturdy trellis or arbor to support the vigorous climbing habit of Clematis x durandii I Am Happy.
Keep It Thriving
Care Guide
Do
- Water deeply during dry spells 💧
- Prune after flowering to maintain shape ✂️
- Feed with a high-potassium fertilizer in spring 🌱
- Mulch to retain soil moisture and suppress weeds
- Support with a trellis or fence for vertical growth
Don't
- Avoid overwatering, which can cause root rot ❌
- Don’t prune in late summer or fall, as it may remove next season’s buds ❌
- Refrain from planting in poorly-drained soil
- Avoid fertilizing with high-nitrogen formulas that promote excessive foliage
- Do not neglect support structures for climbing
Seasonal Care Calendar
| Task | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Fertilize | ||||||||||||
| Mulch | ||||||||||||
| Prune | ||||||||||||
| Stake |
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
Durand's Clematis questions
What zones can Durand's Clematis grow in?
Durand's 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 Durand's Clematis deer resistant?
Yes — Durand's Clematis is rated deer-resistant. Deer typically pass it over, though extreme hunger can override any plant's defenses.
When does Durand's Clematis bloom?
Durand's Clematis typically blooms in early summer through late spring. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.
Does Durand's Clematis need full sun?
Durand's Clematis does best in full sun to part shade. In hot climates, afternoon shade keeps blooms fresher longer.
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