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perennial

Blue Mammoth Hosta

Hosta 'Blue Mammoth'

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Blue Mammoth Hosta (Hosta 'Blue Mammoth') at Shelmerdine Garden Center

Blue Mammoth Hosta

Blue Mammoth Hosta

(Photo courtesy of NetPS Plant Finder)

Blue Mammoth Hosta (Hosta 'Blue Mammoth') at Shelmerdine Garden Center

Blue Mammoth Hosta

Blue Mammoth Hosta

(Photo courtesy of NetPS Plant Finder)

Plant Height:  28 inches

Flower Height:  4 feet

Spacing:  30 inches

Sunlight:  partial shade  full shade 

Hardiness Zone:  2a

Other Names:  Plantain Lily, Funkia

Description:

A beautiful extra large variety featuring dense mounds of powder blue, rounded leaves; white flowers appear in mid-summer; adds texture, contrast and color to garden beds; prefers shaded areas; direct sun will fade color; low maintenance and easy to grow

Ornamental Features

Blue Mammoth Hosta features dainty spikes of white bell-shaped flowers rising above the foliage in mid summer. Its attractive enormous textured round leaves emerge powder blue in spring, turning blue in colour throughout the season.

Landscape Attributes

Blue Mammoth Hosta is a dense herbaceous perennial with tall flower stalks held atop a low mound of foliage. Its wonderfully bold, coarse texture can be very effective in a balanced garden composition.

This is a relatively low maintenance plant, and is best cleaned up in early spring before it resumes active growth for the season. Gardeners should be aware of the following characteristic(s) that may warrant special consideration;

  • Insects

Blue Mammoth Hosta is recommended for the following landscape applications;

  • Accent
  • Mass Planting
  • General Garden Use
  • Groundcover

Planting & Growing

Blue Mammoth Hosta will grow to be about 28 inches tall at maturity extending to 4 feet tall with the flowers, with a spread of 3 feet. When grown in masses or used as a bedding plant, individual plants should be spaced approximately 30 inches apart. Its foliage tends to remain dense right to the ground, not requiring facer plants in front. It grows at a medium 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 partial shade to shade. 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 particular variety is an interspecific hybrid. 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
Characteristics
Accent  Massing  Garden  Groundcover 
Applications
Flowers  Foliage Color  Texture  Plant Form 
Ornamental Features