Summersweet
Clethra Alnifolia
Overview
Summersweet, Clethra alnifolia, thrives in USDA zones 4-9 with a mature height of 3-8 feet and a spread of 4-6 feet. This deciduous shrub features fragrant, white-to-pink blooms in late summer, serving as a pollinator magnet. Plant in full sun to part shade in moist, acidic soil. Excellent for rain gardens or naturalized areas, it adds multi-season interest with its fall foliage and exfoliating bark.
Sun Full, Half, ShadeWater HighZones 3–9Type Shrub

Culture
- Sun
- Full, Half, Shade
- Water
- High
- USDA zones
- 3–9
Shape & size
- Mature height
- 3–8 Ft.
- Mature width
- 4–6 Ft.
Classification
- Type
- Shrub
- Family
- Clethraceae
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Photographs by 13 contributors
- Andrea Moro, CC BY-SA 4.0 · source
- PumpkinSky, CC BY-SA 4.0 · source
- Dick Culbert from Gibsons, B.C., Canada, CC BY 2.0 · source
- Krzysztof Ziarnek, Kenraiz, CC BY-SA 4.0 · source
- David J. Stang, CC BY-SA 4.0 · source
- Sandy Wolkenberg, CC BY 4.0 · source
- KENPEI, CC BY-SA 3.0 · source
- Alex Abair, CC BY 4.0 · source
- Plant Image Library from Boston, USA, CC BY-SA 2.0 · source
- Leonora (Ellie) Enking from East Preston, CC BY-SA 2.0 · source
- Wilcox, Mike, CC BY 4.0 · source
- Doug McGrady from Warwick, RI, USA, CC BY 2.0 · source
- H. Zell, CC BY-SA 3.0 · source
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