False Hydrangea
Deinanthe caerulea
Not currently listed at our partner nurseries.
Essentials
At a Glance
Plant Type
Perennial
Height
24 inches
Width
18 inches
Light
Partial Sun, Shade
Zones
5, 6, 7
Water
Keep moist
Humidity
Prefers humid environments
Lifespan
Perennial
Native To
China
Toxicity
Non-toxic to humans and pets
The Story
Plant Bio
A clump-forming, rhizomatous perennial with large, glossy, deeply divided leaves. In summer, it produces nodding, waxy, cup-shaped, violet-blue flowers. This species is prized for its unusual, waxy, violet-blue flowers and bold, hydrangea-like foliage, making it a standout in woodland gardens.
Bloom Period:
Uses & Benefits:
Marketplace
Where to Buy
We couldn't find this plant listed online right now.
Shipping costs Year-round shipping Free shipping
Planting
How to Grow
- Tuck seeds or divisions into well-prepared soil
- Water regularly to keep soil moist
- Place in partial shade for best growth
- Apply a balanced fertilizer in early spring
- Mulch around base to conserve moisture
- Monitor for pests and diseases during growing season
Pro Tip
Ensure soil remains moist and well-drained for optimal growth.
Keep It Thriving
Care Guide
Do
- Water consistently to keep soil moist 🌱
- Provide partial shade in hot climates
- Mulch to retain soil moisture
Don't
- Avoid dry, overly sunny spots ❌
- Don’t let soil dry out completely
- Over-fertilize which can cause legginess
Seasonal Care Calendar
| Task | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Divide | ||||||||||||
| Fertilize | ||||||||||||
| Mulch | ||||||||||||
| Pest Check | ||||||||||||
| Plant | ||||||||||||
| Spring Cleanup |
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
False Hydrangea questions
What zones can False Hydrangea grow in?
False Hydrangea is hardy in USDA Zones 5–7. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.
Is False Hydrangea deer resistant?
Not reliably. Deer may browse False Hydrangea, especially tender spring growth — plan on repellents or fencing where pressure is high.
When does False Hydrangea bloom?
False Hydrangea typically blooms in late summer through late summer. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.
Does False Hydrangea need full sun?
False Hydrangea does best in part shade.
Keep exploring
Explore the genus
Collections featuring this plant
Hardy in your zone?
Grow False Hydrangea 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.
