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Clethra alnifolia 'Sixteen Candles' /Sixteen Candles Summersweet, Clethra, Summersweet

Clethra alnifolia 'Sixteen Candles'   / Clethra alnifolia 'Sixteen Candles'
Close-up of the showy flowering spikes on this cultivar of clethra
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Close-up of the showy flowering spikes on this cultivar of clethra

Typical shrub in full bloom in a nursery container

Seed heads in autumn after a heavy bloom in summer

Mature shrub in late summer at the North Carolina Arboretum near Asheville

Heavy flowering, typical of this cultivar

Early stage of seed head formation

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Scientific Name: Clethra alnifolia 'Sixteen Candles'
Common Name: Sixteen Candles Summersweet, Clethra, Summersweet
Plant Type: Deciduous
Leaf Type: Broadleaf
Hardiness Zone: 4, 5, 6, 7, 8, 9 Determine Your Zone
Height: 2- 5 feet
Spread: 2 -3 feet
Bloom time: Summer
Flower color: White
Light Exposure: Sun, Part Sun
Drainage: Well drained, Moist, Wet
Rate of Growth: Moderate
Water Requirement: Medium
Maintenance Level: Low
Susceptible to insects
and diseases:
Landscape Categories: Deer Resistant-Tolerant Plants
Plants That Attract Butterflies
Comments: The white, candle-like, erect flower spikes attract butterflies. This compact selection is reported to grow in a wide range of soil and light conditions.