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Hummingbird Summersweet Clethra
Hummingbird Clethra is an exceptionally hardy and easy-to-grow shrub that bears creamy white, spicy, clove-scented flowers in dense, upright spikes that last up to six weeks during the hottest part of summer. More details below

Hummingbird Summersweet Clethra

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Hummingbird Summersweet Clethra
Clethra alnifolia 'Hummingbird'

USDA Plant Hardiness Zones: 3b-9b  Find Your Zone >

Note:  For our customers who live and garden north of USDA Plant Hardiness Zone 3b, where this Clethra is not winter hardy, you'll be happy to know it can be grown in containers that can be brought indoors during winter and placed back outside when temperatures warm up in spring.



Special Attributes

A North American native, Hummingbird Clethra is an exceptionally hardy and easy-to-grow shrub that bears creamy white, spicy, clove-scented flowers in dense, upright spikes that last up to six weeks during the hottest part of summer. This variety is more compact than the species, growing 2-3 feet in height with an equal spread. The flowers are a favorite of hummingbirds, butterflies and other beneficial insects. Flowers mature to spikes of dark brown capsules that provide winter interest. Its oval, glossy dark green leaves turn a pleasant yellow in fall. 



Landscape & Garden Uses

Growing upright to about 2-3 feet tall and wide, Hummingbird Clethra is most useful in sunny landscape beds with moisture retentive soil, though it will tolerant a fair amount of shade and dry soil conditions. Plant it near windows or around outdoor living areas where the fragrance can be enjoyed. A fine addition to butterfly and hummingbird gardens, wildlife gardens, cottage gardens, and fragrance gardens.  

Spacing:  2-3' for solid hedges;  5' or more for space between plants



Cultural Preferences

Hummingbird Clethra is a very easy plant to grow and is free of any pest and disease problems. It grows best in consistently moist, slightly acid soils in sun to part shade however tolerates a range of conditions including shade, wet soil, and salt spray.



Helpful Articles

Click on the link below to get helpful advice from our experts on how to plant and care for Clethra Summersweet plants.




Plant Details

USDA Plant Hardiness Zones: 3b-9b  Find Your Zone >
Plant Type:  Deciduous Flowering Shrub
Height at Maturity:  2-3'
Width at Maturity:  2-3'
Growth Habit / Form:  Bushy, Upright
Growth Rate:  Moderate
Flower Color:  White
Flower Size:  Medium, 1"wide x 3-4" long
Flowering Period:  Early to Mid-Summer
Flower Type:  Spires
Fragrant Flowers:  Yes, Clove Scented!
Foliage Color:  Green
Fragrant Foliage:  No
Sun Needs:  Full Sun or Mostly Sun, Morning Sun with Dappled or Afternoon Shade, All Day Filtered Sun, Morning Shade with Evening Sun
Water Needs:  Average
Soil Type:  Clay (Amended), Loam, Sand, Silt 
Soil Moisture / Drainage:  Well Drained Moist to Poorly Drained
Soil pH:  5.5 - 7.5 (Acid to Slightly Alkaline)
Maintenance / Care:  Very Low
Attracts:  Butterflies. Hummingbirds, Pollinating Insects, Visual Attention
Resistances:  Deer, Disease, Heat, Insect, Salt Air, Wet Soils



Plant Long & Prosper!

Questions? Contact Us!





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