clustered bellflower
Campanula glomerata
RHS Plants for Pollinators
USDA zones3 to 8
SunHandles full sun to partial sun
WaterHandles moderate to wet soil
Size12 to 18 inches tall12 to 24 inches wide
- Growth rate
- Rapid
- Habit
- Clumping
- Bloom season
- Spring, summer
- Bloom color
- Blue, purple
- Foliage color
- Green
- Soil types
- Sand, loam, clay, chalk
- Soil pH
- Alkaline, neutral
Garden uses
Attracts
Notes
Clustered bellflower (Campanula glomerata) is a perennial for borders, cottage gardens, and pollinator gardens. It is hardy to USDA zone 3, or down to -40°F (-40°C). This plant likes full or part sun and average to wet soil of most types. It forms a clumping mound of green leaves, and blue to purple flowers open in spring and again in summer. Butterflies, hummingbirds, and bees visit them. Deer and rabbits rarely make it their first choice.
Pairs well with Karl Rosenfield peony, American Gold Rush black-eyed Susan, and Sedge.
Native range
Europe and temperate Asia.