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Clethra alnifolia Summer Sparkler™ ('Novacleein')

Summer Sparkler™ Summersweet: Patent PP27,590

  • »  Heavy bloomer
  • »  Attracts pollinators
  • »  Excellent flower fragrance
  • »  Thrives in partial shade and moist soils
  • »  Profuse bloomer
  • »  Compact form
  • »  AKA Einstein

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It doesn't take a genius to see that this Summersweet gets its name from the foot-long strands of densely packed fragrant flowers that twist off in all directions just like the sparks from a 4th of July sparkler. Compact, Summer Splarkler™ is more prolific in blooming than the species with flower racemes twice as long. An outstanding shady garden choice for summer bloom and pollinator attraction.

Cut Flower/Foliage
Focal Point
Foliage Color
Maintenance and Care
Low Maintenance
Critter Resistance
Deer Resistant
Rabbit Resistant
Flower Color
Season of Interest (Flowering)
Summer Bloomer
Late Summer
Full Sun
Partial Sun
Partial Shade
Full Shade
Soil Moisture
Moist, Well-Drained
Growing & Maintenance Tips for Clethra alnifolia 'Summer Sparkler™'

Fertilize yearly with an organic fertilizer. Leave the spent seedheads on the plant to provide food for birds and small mammals in winter. Prune in late winter for good airflow and to control size and shape.