Clethra, Summersweet, Sweet Pepper Bush
Clethraalnifolia 'Hummingbird'

Family: Clethraceae Genus: Clethra (KLEE-thra)
Species: alnifolia (al-nee-FOH-lee-uh)
Cultivar: Hummingbird

Category

Shrubs

Water Requirements

Requires consistently moist soil; do not let dry out between waterings

Sun Exposure

Full Sun
Sun to Partial Shade
Light Shade

Foliage

Deciduous
Textured

Foliage Color

Unknown

Height

36-48 in. (90-120 cm)

Spacing

36-48 in. (90-120 cm)

Hardiness

USDA Zone 3b: to -37.2 °C (-35 °F)
USDA Zone 4a: to -34.4 °C (-30 °F)
USDA Zone 4b: to -31.6 °C (-25 °F)
USDA Zone 5a: to -28.8 °C (-20 °F)
USDA Zone 5b: to -26.1 °C (-15 °F)
USDA Zone 6a: to -23.3 °C (-10 °F)
USDA Zone 6b: to -20.5 °C (-5 °F)
USDA Zone 7a: to -17.7 °C (0 °F)
USDA Zone 7b: to -14.9 °C (5 °F)
USDA Zone 8a: to -12.2 °C (10 °F)
USDA Zone 8b: to -9.4 °C (15 °F)
USDA Zone 9a: to -6.6 °C (20 °F)
USDA Zone 9b: to -3.8 °C (25 °F)

Where to Grow

Unknown

Danger

N/A

Bloom Color

White/Near White

Bloom Characteristics

This plant is attractive to bees, butterflies and/or birds
Flowers are fragrant

Bloom Size

Unknown

Bloom Time

Mid Summer
Late Summer/Early Fall

Other details

Unknown

Soil pH requirements

5.6 to 6.0 (acidic)
6.1 to 6.5 (mildly acidic)

Patent Information

Unknown

Propagation Methods

From softwood cuttings
By tip layering

Seed Collecting

Unknown