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perennial

Superba Chinese Astilbe

Astilbe chinensis 'Superba'

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Superba Chinese Astilbe (Astilbe chinensis 'Superba') at Cole's Florist & Garden Centre

Superba Chinese Astilbe flowers

Superba Chinese Astilbe flowers

(Photo courtesy of NetPS Plant Finder)

Superba Chinese Astilbe (Astilbe chinensis 'Superba') at Cole's Florist & Garden Centre

Superba Chinese Astilbe in bloom

Superba Chinese Astilbe in bloom

(Photo courtesy of NetPS Plant Finder)

Plant Height:  24 inches

Flower Height:  3 feet

Spacing:  18 inches

Sunlight:  partial shade  full shade 

Hardiness Zone:  2b

Other Names:  False Spirea

Description:

Imposing, airy, deep lilac plumes; this astilbe has outstanding form, it's plumes stretch out towards the sky; flowers rising above glossy foliage; perfect in a shady spot with dappled light; prefers moisture so water regularly for abundant flowers

Ornamental Features

Superba Chinese Astilbe has masses of beautiful plumes of lilac purple flowers at the ends of the stems from early to mid summer, which are most effective when planted in groupings. The flowers are excellent for cutting. Its ferny compound leaves remain dark green in colour throughout the season. The fruit is not ornamentally significant.

Landscape Attributes

Superba Chinese Astilbe 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 to your yard, but is not particularly attractive to deer who tend to leave it alone in favor of tastier treats. It has no significant negative characteristics.

Superba Chinese Astilbe is recommended for the following landscape applications;

  • Mass Planting
  • General Garden Use
  • Container Planting

Planting & Growing

Superba Chinese Astilbe will grow to be about 24 inches tall at maturity extending to 3 feet tall with the flowers, with a spread of 24 inches. When grown in masses or used as a bedding plant, individual plants should be spaced approximately 18 inches apart. It grows at a medium rate, and under ideal conditions can be expected to live for approximately 10 years.

This plant does best in partial shade to shade. It requires an evenly moist well-drained soil for optimal growth. It is very fussy about its soil conditions and must have rich, acidic soils to ensure success, and is subject to chlorosis (yellowing) of the leaves in alkaline soils. It is somewhat tolerant of urban pollution, and will benefit from being planted in a relatively sheltered location. Consider applying a thick mulch around the root zone over the growing season to conserve soil moisture. 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.

Superba Chinese Astilbe is a fine choice for the garden, but it is also a good selection for planting in outdoor pots and containers. With its upright habit of growth, it is best suited for use as a 'thriller' in the 'spiller-thriller-filler' container combination; plant it near the center of the pot, surrounded by smaller plants and those that spill over the edges. 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 Soil pH Preference
Characteristics
Massing  Garden  Container 
Applications
Flowers  Attracts Wildlife 
Ornamental Features