Longfellow's Greenhouses Online Plant Guide
perennial

Bells and Whistles Clustered Bellflower - New For 2026!

Campanula glomerata 'Bells And Whistles'

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Bells and Whistles Clustered Bellflower (Campanula glomerata 'Bells And Whistles') at Longfellow's Greenhouses

Bells and Whistles Clustered Bellflower flowers

Bells and Whistles Clustered Bellflower flowers

(Photo courtesy of NetPS Plant Finder)

Bells and Whistles Clustered Bellflower (Campanula glomerata 'Bells And Whistles') at Longfellow's Greenhouses

Bells and Whistles Clustered Bellflower in bloom

Bells and Whistles Clustered Bellflower in bloom

(Photo courtesy of NetPS Plant Finder)

Height:  28 inches

Spread:  22 inches

Sunlight:  full sun  partial shade 

Hardiness Zone:  3

Brand:  Proven Winners

Description:

This selection features beautiful clusters of dark violet-blue bell-shaped flowers, rising above rich, dark green foliage; pollinator friendly, and easy to maintain; excellent in beds, borders, containers or in bouquets; best shaded from hot afternoon sun

Ornamental Features

Bells and Whistles Clustered Bellflower has masses of beautiful clusters of violet bell-shaped flowers with royal blue overtones at the ends of the stems from late spring to early summer, which are most effective when planted in groupings. The flowers are excellent for cutting. Its narrow leaves remain dark green in color throughout the season.

Landscape Attributes

Bells and Whistles Clustered Bellflower is an herbaceous perennial with an upright spreading habit of growth. Its relatively coarse texture can be used to stand it apart from other garden plants with finer foliage.

This is a high maintenance plant that will require regular care and upkeep, and should only be pruned after flowering to avoid removing any of the current season's flowers. It is a good choice for attracting bees and butterflies to your yard, but is not particularly attractive to deer who tend to leave it alone in favor of tastier treats. Gardeners should be aware of the following characteristic(s) that may warrant special consideration;

  • Invasive

Bells and Whistles Clustered Bellflower is recommended for the following landscape applications;

  • Mass Planting
  • General Garden Use
  • Naturalizing And Woodland Gardens

Planting & Growing

Bells and Whistles Clustered Bellflower will grow to be about 24 inches tall at maturity, with a spread of 22 inches. Its foliage tends to remain dense right to the ground, not requiring facer plants in front. It grows at a fast rate, and under ideal conditions can be expected to live for approximately 8 years. As an herbaceous perennial, this plant will usually die back to the crown each winter, and will regrow from the base each spring. Be careful not to disturb the crown in late winter when it may not be readily seen!

This plant does best in full sun to partial shade. You may want to keep it away from hot, dry locations that receive direct afternoon sun or which get reflected sunlight, such as against the south side of a white wall. It prefers to grow in average to moist conditions, and shouldn't be allowed to dry out. This plant should not require much in the way of fertilizing once established, although it may appreciate a shot of general-purpose fertilizer from time to time early in the growing season. It is not particular as to soil type, but has a definite preference for alkaline soils. It is highly tolerant of urban pollution and will even thrive in inner city environments. This is a selected variety of a species not originally from North America. It can be propagated by division; however, as a cultivated variety, be aware that it may be subject to certain restrictions or prohibitions on propagation.

 
 
Hardiness Zone  Plant Height  Minimum Sunlight  Soil pH Preference 
Characteristics
Massing  Garden  Naturalizing 
Applications
Flowers  Attracts Wildlife  Deer Resistant 
Features & Attributes

Disclaimer - This Plant Finder tool is an online resource representing many of the varieties that we carry over the course of the season, and is intended for informational purposes only. Inventory varies seasonally, so we cannot guarantee that every plant will be in stock at all times - please contact the store directly for current availability. It does not include our entire selection of plants, so be sure to visit our store to see varieties that may not be represented on this list.