Hummingbird Summersweet
Botanical Name:
Clethra alnifolia 'Hummingbird'
Common Name:
Hummingbird Summersweet
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Clethra alnifolia 'Hummingbird'
Flowers attract butterflies and hummingbirds. Clethra alnifolia is rarely bothered by deer! Mass in mixed shrub borders for dramatic summer blooms. Great flowering shrub for shade or woodland gardens or along stream banks or ponds.










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Average Annual Low Temp (°F)
1
Below -50°F
2
-50°F to -40°F
3
-40°F to -30°F
4
-30°F to -20°F
5
-20°F to -10°F
6
-10°F to 0°F
7
0°F to 10°F
8
10°F to 20°F
9
20°F to 30°F
10
30°F to 40°F
11
40°F to 50°F
Zone 3, Zone 4, Zone 5, Zone 6, Zone 7, Zone 8, Zone 9
Botanical Name | Clethra alnifolia 'Hummingbird' |
---|---|
Common Name | Hummingbird Summersweet |
Family | Clethraceae |
Foliage Type | Deciduous |
Mature Height | 3 - 4 ft. |
Mature Width | 3 - 4 ft. |
Preferred Zones | Zone 3, Zone 4, Zone 5, Zone 6, Zone 7, Zone 8, Zone 9 |
Bloom Time | July - August |
Bloom Type | White / Silver Flower |
Preferred Soil Type | Widely Adaptable |
Sun Exposure | Full / Part Sun |
Growth Rate | Medium |
Drought Tolerance | Medium |