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Sugartina® Summersweet

Clethra alnifolia 'Crystalina'

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Sugartina Summersweet (Clethra alnifolia 'Crystalina') at Sargent's Gardens

Sugartina® Summersweet flowers

(Photo courtesy of NetPS Plant Finder)

Height:  30 inches

Spread:  3 feet

Sunlight:  full sun  partial shade 

Hardiness Zone:  4a

Other Names:  Sweet Pepperbush

Brand:  Proven Winners


This highly fragrant dwarf variety features spikes of sweet smelling white flowers in late summer when little else is blooming; a small dense habit of growth and good fall color; needs moist acidic soil

Ornamental Features

Sugartina® Summersweet has masses of beautiful spikes of fragrant white flowers rising above the foliage from late summer to early fall, which are most effective when planted in groupings. It has dark green deciduous foliage. The glossy round leaves turn an outstanding yellow in the fall.

Landscape Attributes

Sugartina® Summersweet is a multi-stemmed deciduous shrub with a shapely oval form. Its average texture blends into the landscape, but can be balanced by one or two finer or coarser trees or shrubs for an effective composition.

This shrub will require occasional maintenance and upkeep, and is best pruned in late winter once the threat of extreme cold has passed. It is a good choice for attracting bees and butterflies to your yard. Gardeners should be aware of the following characteristic(s) that may warrant special consideration;

  • Suckering

Sugartina® Summersweet is recommended for the following landscape applications;

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

Planting & Growing

Sugartina® Summersweet will grow to be about 30 inches tall at maturity, with a spread of 3 feet. It tends to fill out right to the ground and therefore doesn't necessarily require facer plants in front. It grows at a slow rate, and under ideal conditions can be expected to live for approximately 30 years.

This shrub does best in full sun to partial shade. It is quite adaptable, prefering to grow in average to wet conditions, and will even tolerate some standing water. It is not particular as to soil type, but has a definite preference for acidic soils, and is able to handle environmental salt. It is highly tolerant of urban pollution and will even thrive in inner city environments. Consider applying a thick mulch around the root zone in winter to protect it in exposed locations or colder microclimates. This is a selection of a native North American species.

Hardiness Zone Plant Height Minimum Sunlight Soil pH Preference
Massing  Garden  Naturalizing 
Flowers  Fall Color  Attracts Wildlife 
Ornamental Features