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Blue Butterfly Delphinium

Delphinium grandiflorum 'Blue Butterfly'

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Blue Butterfly Delphinium (Delphinium grandiflorum 'Blue Butterfly') at Ashcombe Farm & Greenhouses

Delphinium grandiflorum 'Blue Butterfly' flowers

Delphinium grandiflorum 'Blue Butterfly' flowers

(Photo courtesy of NetPS Plant Finder)

Plant Height:  12 inches

Flower Height:  18 inches

Spacing:  12 inches

Sunlight:  full sun 

Hardiness Zone:  2a

Other Names:  Dwarf Larkspur

Ornamental Features

Blue Butterfly Delphinium has masses of beautiful panicles of navy blue trumpet-shaped flowers with white throats and blue spurs at the ends of the stems from late spring to late summer, which are most effective when planted in groupings. The flowers are excellent for cutting. Its deeply cut ferny compound leaves remain grayish green in color throughout the season. The fruit is not ornamentally significant.

Landscape Attributes

Blue Butterfly Delphinium is an herbaceous perennial with a mounded form. Its relatively fine texture sets it apart from other garden plants with less refined foliage.

This plant will require occasional maintenance and upkeep, and should be cut back in late fall in preparation for winter. It is a good choice for attracting bees, butterflies and hummingbirds to your yard. Gardeners should be aware of the following characteristic(s) that may warrant special consideration;

  • Insects
  • Disease
  • Self-Seeding

Blue Butterfly Delphinium is recommended for the following landscape applications;

  • Mass Planting
  • Rock/Alpine Gardens
  • Border Edging
  • General Garden Use
  • Container Planting

Planting & Growing

Blue Butterfly Delphinium will grow to be about 12 inches tall at maturity extending to 18 inches tall with the flowers, with a spread of 18 inches. When grown in masses or used as a bedding plant, individual plants should be spaced approximately 12 inches apart. It grows at a medium rate, and under ideal conditions can be expected to live for approximately 3 years.

This plant should only be grown in full sunlight. It prefers to grow in average to moist conditions, and shouldn't be allowed to dry out. It is not particular as to soil type or pH. It is somewhat tolerant of urban pollution. 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.

Blue Butterfly Delphinium is a fine choice for the garden, but it is also a good selection for planting in outdoor pots and containers. It is often used as a 'filler' in the 'spiller-thriller-filler' container combination, providing a mass of flowers against which the thriller plants stand out. Note that when growing plants in outdoor containers and baskets, they may require more frequent waterings than they would in the yard or garden.

 
 
Hardiness Zone Plant Height Minimum Sunlight
Characteristics
Massing  Rock  Edging  Garden  Container 
Applications
Flowers  Texture  Attracts Wildlife 
Ornamental Features