Willmott's Plumbago Ceratostigma
Ceratostigma willmottianum
Essentials
At a Glance
Plant Type
Perennial
Height
24 inches
Width
36 inches
Light
Full Sun, Partial Sun
Zones
5, 6, 7, 8
Water
Moderate once established
Humidity
Average garden humidity
Lifespan
Perennial
Native To
China, Himalayas
Toxicity
Non-toxic
The Story
Plant Bio
Ceratostigma willmottianum is a hardy perennial that features vibrant blue flowers and attractive foliage that turns red in the fall. This species is notable for its long flowering period and striking fall color.
Bloom Period:
Uses & Benefits:
Marketplace
Where to Buy
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Planting
How to Grow
- Tuck seeds into well-drained soil in early spring for best germination.
- Mist cuttings regularly to maintain humidity and encourage rooting.
- Transplant seedlings when they are strong enough to handle, typically after 6 weeks.
- Apply a layer of mulch around the base to retain moisture and suppress weeds.
- Prune lightly after flowering to promote bushy growth and flowering.
- Water regularly during dry spells, especially in the first year.
Pro Tip
Plant in full sun for vibrant blooms and compact growth.
Keep It Thriving
Care Guide
Do
- Water consistently, especially during dry periods 🌱
- Prune lightly after flowering to shape the plant
- Feed with a balanced fertilizer in spring
Don't
- Avoid overwatering to prevent root rot ❌
- Don’t prune in late fall or winter
- Avoid heavy soil that retains too much moisture
Seasonal Care Calendar
| Task | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mulch | ||||||||||||
| 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
Willmott's Plumbago Ceratostigma questions
What zones can Willmott's Plumbago Ceratostigma grow in?
Willmott's Plumbago Ceratostigma is hardy in USDA Zones 5–8. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.
Is Willmott's Plumbago Ceratostigma deer resistant?
Yes — Willmott's Plumbago Ceratostigma is rated deer-resistant. Deer typically pass it over, though extreme hunger can override any plant's defenses.
When does Willmott's Plumbago Ceratostigma bloom?
Willmott's Plumbago Ceratostigma typically blooms in late summer through early fall. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.
Does Willmott's Plumbago Ceratostigma need full sun?
Willmott's Plumbago Ceratostigma does best in full sun to part shade. In hot climates, afternoon shade keeps blooms fresher longer.
Is Willmott's Plumbago Ceratostigma drought tolerant?
Yes — once established (usually after the first full season), Willmott's Plumbago Ceratostigma handles dry spells with minimal watering. Water deeply its first year to build the root system that makes that possible.
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