Clethra alnifolia 'Ruby Spice' (Summersweet)
'Ruby Spice' is a standout variety of Summersweet, offering vibrant ruby-pink flower spikes with an intoxicating fragrance. Blooming in mid-to-late summer when many shrubs have finished, it brings fresh color and scent to shady or moist garden spots.
This compact, upright shrub attracts butterflies, hummingbirds, and other pollinators while being deer-resistant and low-maintenance. It is ideal for woodland edges, mixed borders, rain gardens, or near ponds and streams where soil stays consistently moist.
- � Dense clusters of ruby-pink, fragrant blooms
- � Attracts butterflies & hummingbirds
- � Compact size great for small gardens
- � Deer-resistant & low-maintenance
- � Mature Size: 3–6 ft. tall, 3–5 ft. wide
- ☀️ Sun to partial shade; thrives in moist soils
Note: Excellent choice for naturalized areas, borders, or as a foundation planting. Blooms even in partial shade where other flowering shrubs may struggle.
Growing Zones: 4–8 outdoors
| Mature Height: | 3–6 ft. |
| Sunlight: | Full Sun to Partial Shade |
| Mature Width: | 3–5 ft. |
| Botanical Name: | Clethra alnifolia 'Ruby Spice' |
| Growth Rate: | Moderate |
| Bloom Time: | Mid to Late Summer |
| Type: | Deciduous Shrub |
FAQ's
What makes 'Ruby Spice' different from other Summersweet varieties?
It features deeper, ruby-pink flowers that hold their color better than most other cultivars.
When does it bloom?
'Ruby Spice' blooms in mid-to-late summer, extending color into the season.
Does it tolerate shade?
Yes, it performs well in partial shade and is one of the few flowering shrubs that thrive there.
Is it suitable for wet soil?
Yes, 'Ruby Spice' thrives in moist, well-drained soil and is ideal for rain gardens or near water features.
How tall does it grow?
It typically grows 3–6 feet tall with a spread of 3–5 feet.
