Clethra, Summersweet, Sweet Pepper Bush 'Compacta'

Clethraalnifolia

Genus
Clethra (KLEE-thra)
Species
alnifolia (al-nee-FOH-lee-uh)
Synonym
Sun Exposure
Full Sun
Sun to Partial Shade
Light Shade
Partial to Full Shade
Foliage
This plant is resistant to deer
Smooth
Height
36-48 in. (90-120 cm)
Spacing
6-8 ft. (1.8-2.4 m)
Hardiness
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)
Danger
N/A
Bloom Color
White/Near White
Bloom Time
Mid Summer
Late Summer/Early Fall
Other Details
Category
Shrubs
Water Requirements
Requires consistently moist soil; do not let dry out between waterings
Foliage Color
Where to Grow
Bloom Characteristics
Flowers are fragrant
Bloom Size
Other details
Soil pH requirements
5.1 to 5.5 (strongly acidic)
5.6 to 6.0 (acidic)
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)
Patent Information
Propagation Methods
By dividing the rootball
From softwood cuttings
From semi-hardwood cuttings
From seed; winter sow in vented containers, coldframe or unheated greenhouse
From seed; sow indoors before last frost
By simple layering
Seed Collecting
Properly cleaned, seed can be successfully stored
Regional

This plant is said to grow outdoors in the following regions:

Lehigh Valley, Pennsylvania

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Gardener's Notes:

0
positive
0
neutral
0
negative
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