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Clethra Wikimedia Commons
Clethraceae

Clethra

Clethra alnifolia

Sweet persistence.

Family
Clethraceae
Genus
Clethra
Native to
Eastern United States
Bloom season
Summer
Type
deciduous shrub
Height
3-8 ft
Sunlight
full sun to part shade
Soil
acidic, moist, rich
Water
moderate to high
Hardiness
3-9
Lifespan
perennial

Did you know

  • Clethra is commonly called 'summersweet' for its intensely fragrant flower spikes that perfume gardens in July and August.
  • It is one of the last native shrubs to bloom in summer, filling a critical gap for late-season pollinators.
  • The flowers attract an extraordinary number of butterflies, giving it the alternate name 'butterfly bush of the wetlands.'
  • The genus name comes from the Greek 'klethra,' the ancient name for alder, due to similar leaf shapes.
  • Clethra naturally grows in coastal swamps and stream banks, tolerating both wet feet and salt spray.

Color meanings

0

devotion

1

refreshment

Uses

  • pollinator garden
  • rain garden
  • fragrant hedge