Mature Clethra alnifolia 'Hummingbird' in bloom, grown in 3-gallon pots.
Close-up of white Clethra alnifolia 'Hummingbird' flowers in bloom.
Clethra alnifolia 'Hummingbird' showcasing yellow fall foliage.
Young Clethra alnifolia 'Hummingbird' grown in 1-gallon pots.

Clethra alnifolia 'Hummingbird' (Dwarf Summersweet) Unity Grown

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The 'Hummingbird' cultivar of Clethra alnifolia, also called summersweet or sweet pepperbush, is dwarf cultivar among Clethra varieties, growing to only three to four tall and wide. As for most summersweet, the real draw is the flowers, and 'Hummingbird' produces a profusion of fragrant white flower spikes that are attractive to pollinators of all kinds, but especially butterflies and hummingbirds.

With this cultivar's compact growth a habit, this sweet pepperbush makes for a great addition to any small garden and displays beautifully when planted in mass, when mixed into perennial borders, or when used in small beds or rain gardens. Naturally found in coastal wetland areas or floodplains, Clethra alnifolia grows best in wetter areas with acidic, sandy soils, but is not at all picky, and will tolerate perpetually wet clay soils, and even those with some salt content.

Native to Eastern Shore, Native to Maryland, and Native to U.S.
Mature Plant Height: Medium: 30-48"
Sun (6+ hours) and Part Shade/Sun (4-6 hours of sun)
Soil Moisture: Medium to Wet
Soil Type: Sand and Acidic
Bloom Time: Summer
Flower Color: White
Foliage color: Green
Features: Attracts Birds, Attracts Hummingbirds, Attracts Pollinators, Attracts Wildlife, Host Plant for Butterflies or Moths, Fragrant, Fall Color, and Erosion Control
Tolerances: Deer Tolerant, Clay Soil Tolerant, Wet Soil Tolerant, Flood Tolerant, Shade Tolerant, and Salt Tolerant
Garden Type: Pollinator Garden, Rain Garden, Woodland Garden, Small Space, Wetland Restoration, and Border/Screen

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