The Story
Plant Bio
Campanula glomerata 'Caroline' is a perennial herbaceous plant recognized for its dense, terminal clusters of bell-shaped, light pink flowers and its upright, clump-forming habit.
This cultivar is distinguished by its particularly abundant flowering and its robust, compact growth, making it an attractive choice for borders and naturalized areas.
Uses & Benefits:
Essentials
At a Glance
Plant Type
Perennial
Height
12 inches
Width
18 inches
Light
Full Sun, Partial Sun
Zones
4, 5, 6, 7, 8
Water
Moderate
Humidity
Average
Lifespan
Perennial
Native To
Europe and Asia
Toxicity
Non-toxic to humans and pets
Bloom period
Late spring
In flower about 1 month of the year
Planting
How to Grow
- Tuck seeds into moist soil in early spring
- Keep soil consistently moist during active growth
- Place in partial shade for best results
- Mulch around base to retain moisture
- Fertilize lightly in spring with balanced fertilizer
- Divide clumps every 3-4 years in early spring
Pro Tip
Ensure well-draining soil and partial shade for optimal growth
Keep It Thriving
Care Guide
Do
- Water regularly to keep soil moist 🌱
- Prune dead stems after flowering
- Mulch to conserve moisture
- Fertilize annually with organic compost
Don't
- Avoid overwatering to prevent root rot ❌
- Don’t expose to full sun in hot climates
- Refrain from heavy fertilizing in late summer
- Don’t neglect to divide every few years
Seasonal Care Calendar
| Task | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Deadhead | ||||||||||||
| Divide | ||||||||||||
| Pest Check |
Watch Out For
Pests & Diseases
Common Pests
Common Diseases
In the Garden
Landscape Uses & Companions
Landscape Uses
Multiply
Propagation Methods
Good to Know
Common Questions
Caroline Bellflower questions
What zones can Caroline Bellflower grow in?
Caroline Bellflower is hardy in USDA Zones 4–8. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.
Is Caroline Bellflower deer resistant?
Not reliably. Deer may browse Caroline Bellflower, especially tender spring growth — plan on repellents or fencing where pressure is high.
When does Caroline Bellflower bloom?
Caroline Bellflower typically blooms in late spring through late spring. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.
Does Caroline Bellflower need full sun?
Caroline Bellflower does best in full sun to part shade. In hot climates, afternoon shade keeps blooms fresher longer.
More Campanula to compare
Birch Bellflower
Campanula x birchii 'Hybrids'
Blue Waterfall Bellflower
Campanula poscharskyana 'Blue Waterfall'
Carpathian Bellflower
Campanula carpatica 'Mix'
Clustered Bellflower
Campanula glomerata
Dalmatian bellflower
Campanula portenschlagiana
Prichard's Variety Milky Bellflower
Campanula lactiflora 'Prichard's Variety'
Keep exploring
Explore the genus
Hardy in your zone?
Grow Caroline Bellflower 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.