Einstein Summersweet
Clethra alnifolia ‘Novacleein’ PP#27,590
Plant Details
USDA Plant Hardiness Zones: 3b-9b  Find Your ZoneÂ
Plant Type: Â Deciduous Flowering Shrub
Height at Maturity:Â 3-4′
Width at Maturity:Â 3-4′
Growth Habit / Form:Â Bushy, Upright
Growth Rate:Â Moderate
Flower Color:Â White
Flower Size:Â Medium, 1″wide x 8-12″ long
Flowering Period:Â Early to Mid-Summer
Flower Type:Â Spires
Fragrant Flowers:Â Â Yes!
Foliage Color:Â Green
Fragrant Foliage:Â No
Sun Needs:Â Full Sun or Mostly Sun, Morning Sun with Dappled or Afternoon Shade, All Day Filtered Sun, Morning Shade with Evening Sun
Water Needs:Â Â Average
Soil Type:Â Â Clay (Amended), Loam, Sand, SiltÂ
Soil Moisture / Drainage:Â Well Drained Moist to Poorly Drained
Soil pH:Â 5.5 – 7.5 (Acid to Slightly Alkaline)
Maintenance / Care:Â Very Low
Attracts:Â Butterflies. Hummingbirds, Pollinating Insects, Visual Attention
Resistances:Â Deer, Disease, Heat, Insect, Salt Air, Wet Soils
Description
Bearing an abundance of long flower wands up to 12 inches in length that twist in all directions, it’s no wonder this unique and interesting Clethra cultivar was named after Albert Einstein. The sweet scented creamy white flowers appear in profusion during the hottest part of summer, and are a favorite of hummingbirds, butterflies and other beneficial pollinators. The bright flowers stand out beautifully against the glossy, oval-shaped dark green leaves that turn yellow in fall. Exceptionally versatile and easy to grow, this North American native shrub is right at home in moist to boggy soils and full sun to mostly shade. More compact than the species, Einstein grows in a rounded mound 3 to 4 feet tall and equally as wide.
Landscape & Garden Uses
Growing 3 to 4 feet tall and equally as wide, Einstein Clethra is ideal for use in sunny landscape beds with moisture retentive soil, though will tolerate dry periods and a fair amount of shade. Plant it as a specimen or in groupings near windows or around outdoor living areas where the fragrance can be enjoyed. In boggy soils it will spread by stolons to form a colony. A fine addition to butterfly and hummingbird gardens, white theme gardens, fragrance gardens, oddity gardens, bog gardens, wildlife gardens and cottage gardens.
Suggested Spacing:Â 3 feet for groupings or mass plantings; 7 feet or more for space between plants
Growing Preferences
Einstein 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. In boggy soils it will spread by stolons to form a colony.
Helpful Articles
Click on the link below to find helpful advice from our experts on how to plant and care for Clethra Summersweet plants.
How To Plant & Care For Clethra SummersweetÂ
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