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Plant Guide

Brunswick

422 Bath Road
Brunswick, ME 04011
1-800-339-8111
207-442-8111

Falmouth

89 Foreside Road
Falmouth, ME 04105
1-800-244-3860
207-781-3860

Cumberland

201 Gray Rd (Route 100)
Cumberland, ME 04021
1-800-348-8498
207-829-5619

perennial

Electric Blue Beard Tongue

Penstemon heterophyllus 'Electric Blue'

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Electric Blue Beard Tongue (Penstemon heterophyllus 'Electric Blue') at Skillins Greenhouse

Electric Blue Beard Tongue flowers

Electric Blue Beard Tongue flowers

(Photo courtesy of NetPS Plant Finder)

Height:  18 inches

Spacing:  14 inches

Sunlight:  full sun  partial shade 

Hardiness Zone:  5a

Other Names:  Electric Blue Foothills Beardtongue

Description:

A vigorous and attractive strong plant with large eye-catching bright blue flowers with purple flares at the stem; low maintenance and drought tolerant once established; perfect for borders, beds and containers

Ornamental Features

Electric Blue Beard Tongue has masses of beautiful spikes of blue tubular flowers with a purple flare rising above the foliage from early to late summer, which are most effective when planted in groupings. The flowers are excellent for cutting. Its glossy narrow leaves remain dark green in color throughout the season.

Landscape Attributes

Electric Blue Beard Tongue is an herbaceous perennial with an upright spreading habit of growth. Its relatively fine texture sets it apart from other garden plants with less refined foliage.

This is a relatively low maintenance plant, and is best cleaned up in early spring before it resumes active growth for the season. It is a good choice for attracting butterflies and hummingbirds to your yard. It has no significant negative characteristics.

Electric Blue Beard Tongue is recommended for the following landscape applications;

  • Mass Planting
  • Border Edging
  • General Garden Use
  • Container Planting

Planting & Growing

Electric Blue Beard Tongue will grow to be about 15 inches tall at maturity, with a spread of 12 inches. When grown in masses or used as a bedding plant, individual plants should be spaced approximately 14 inches apart. It grows at a fast rate, and under ideal conditions can be expected to live for approximately 10 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. It prefers dry to average moisture levels with very well-drained soil, and will often die in standing water. It is considered to be drought-tolerant, and thus makes an ideal choice for a low-water garden or xeriscape application. This plant does not require much in the way of fertilizing once established. It is not particular as to soil type or pH. It is highly tolerant of urban pollution and will even thrive in inner city environments. This is a selection of a native North American species. It can be propagated by cuttings; however, as a cultivated variety, be aware that it may be subject to certain restrictions or prohibitions on propagation.

Electric Blue Beard Tongue 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 larger 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  Edging  Garden  Container 
Applications
Flowers  Texture  Attracts Wildlife 
Ornamental Features