Bells and Whistles Clustered Bellflower (Campanula glomerata ‘Bells and Whistles’) creates a dazzling display of deep violet-blue blooms from late spring to early summer. Its upright habit, rising to 24–28 inches tall with a spread of 22–26 inches, offers a commanding presence among garden perennials. Each clustered flower adds remarkable color set against mounds of green foliage, making this bellflower an ideal choice for eye-catching borders or statement plantings. Unlike many other varieties, it continues to shine all season and resists deer, giving you peace of mind.
In addition to its bold flowers, Bells and Whistles draws butterflies and hummingbirds with its abundant nectar. Though not highly fragrant, it proves adaptable to various soils and thrives in full sun or part shade—especially beneficial in warmer climates where a touch of shade helps prolong bloom color. Its medium growth rate suits different design styles, whether planted en masse for sweeping color or tucked into containers for an elegant accent. Native to parts of Europe and Asia, this clustered bellflower has found a place in diverse landscapes thanks to its easygoing nature and showy floral clusters.
Bells and Whistles Clustered Bellflower Care
Plant in well-draining, moderately fertile soil, keeping the pH anywhere from slightly acidic to alkaline. Maintain average moisture and situate in full sun or part shade, providing some afternoon shade in areas with hot summers. A balanced, slow-release fertilizer in spring can help encourage vigorous blooms. Regular watering is beneficial during active growth, but avoid waterlogged conditions to deter root issues.
Pruning involves cutting back stems after the main flowering flush to encourage compact growth and possibly a second round of blooms. Thinning out older or damaged stems can also boost airflow and deter pests. In colder regions, mulch lightly around the base for winter protection, particularly if grown in containers. Containers benefit from more frequent watering and occasional light trimming to keep growth neat.
Bells and Whistles Clustered Bellflower Spacing
Place individual plants 22 to 26 inches apart for mass plantings or rows, allowing them ample room to create a dramatic, unified display. When grown in containers, consider using a pot at least 12 inches in diameter to accommodate the root system and promote healthy growth.
- SKU:
- BAWCBELLS-GC
Container Sizes
Please Note: The pictures below are to give a general representation of the different container sizes. The actual size/ages of plants are estimates and will vary based on type of plant, time of year, last pruning & many other factors.

Quart Pot
Also Known As:
Quart
Plant Age:
~ 6 months - 1 year
Plant Size:
~ 4"-8"
Pot Size:
~ 4.75"H x 4.5"W
Volume:
1.50 quarts

2.5 Quart
Also Known As:
2.5 Quart Pot
Plant Age:
~ 1 - 2 years old
Plant Size:
~ 8"-12"
Pot Size:
~ 6.5"H x 6.5"W
Volume:
2.20-2.30 quarts

#1 Pot
Also Known As:
#1 Container
1 Gallon
Plant Age:
~ 1 - 2 years old
Plant Size:
~ 10"-14"
Pot Size:
~ 7"H x 7.75"W
Volume:
2.26-3.73 quarts

#2 Pot
Also Known As:
#2 Container
2 Gallon
Plant Age:
~ 1.5 - 3 years old
Plant Size:
~ 12"-18"
Pot Size:
~ 9.5"H x 9.5"W
Volume:
1.19-1.76 gallons

#3 Pot
Also Known As:
#3 Container
3 Gallon
Plant Age:
~ 2 - 4 years old
Plant Size:
~ 12"-30"
Pot Size:
~9.5"H x 11"W
Volume:
2.32-2.76 gallons

#5 Pot
Also Known As:
#5 Container
5 Gallon
Plant Age:
~3-4 years old
Plant Size:
~ 20" - 60"
Pot Size:
~11" H x 10 1/2” W
Volume:
3.5 - 4 gallons

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Pre-Ordered Plants
Pre-ordered plants are scheduled to ship in Spring 2025. We carefully plan our shipping dates based on your USDA Plant Hardiness Zone to ensure optimal planting conditions upon arrival. Want it sooner/later? Reach out, and we'll try our best to accommodate.
Estimated Spring Shipping Schedule
Estimated ship week for pre-ordered plants will ship based on growing zones as shown below.
Growing Zone | Estimated Ship Week |
---|---|
Zone 10 | March 24th |
Zone 9 | March 31st |
Zone 8 | April 7th |
Zone 7 | April 14th |
Zone 6b | April 21st |
Zone 6a | April 28th |
Zone 5b | May 5th |
Zone 5a | May 12th |
Zone 4 | May 19th |
Zone 3 | May 26th |
Note: These are only estimated ship dates. Plants may ship out later depending on weather & growing conditions of the plant.
Note: Only plants indicated as pre-order will ship as shown above. All other plants and hard goods will ship as normal.
Plants Shipping Now
Plants that are currently in stock typically ship within 2-7 business days after your order is placed.