Northwest Blooms · Shrubs
Clethra alnifolia 'Ruby Spice'
Ruby Spice Summersweet
- Family
- Clethraceae
- Height
- 4 ft to 6 ft
- Width
- 3 ft to 5 ft
- Flower color
- Fragrant rosy pink flower spikes with densely packed star shaped blooms
- Foliage color
- Medium to dark green leaves with a smooth surface
- Bloom time
- Late summer to fall
- Light
- Full sun to partial shade
- Water
- Moderate to high
- Maintenance
- Low; prune in late winter or early spring to shape and encourage new growth
- Growing zone
- USDA zones 4 to 9
- Wildlife
- Pollinators attracted to fragrant nectar rich flowers and birds attracted to seeds
About this plant
Clethra alnifolia 'Ruby Spice' produces upright spikes of rosy pink, fragrant flowers in late summer to fall, held above the foliage and opening gradually along each raceme. Oval leaves are medium green with a softly textured surface, forming a dense, leafy framework that carries through the growing season. The foliage develops warm yellow tones in fall, while the flowers release a sweet, clove-like scent that draws bees, butterflies, and other pollinators.
Originating from a species native to eastern North America, this cultivar reflects selection for rich flower color and strong fragrance. It is well suited to woodland borders, mixed plantings, and naturalized areas, where its summer bloom and seasonal color provide lasting garden interest.
Works well in
Sun Gardens · Rain Gardens · Fragrant Gardens · Pollinator Gardens
Companion plants
Manzanita · California lilac · Poppy · Foxtail lily · Oregano · Globe artichoke
Design tip
Fragrant pink flower spikes can bring both color and movement to the garden late in the season, when many shrubs have finished blooming. Its upright flowers look especially effective rising through looser foliage, creating a layered effect that feels natural while still giving the planting definition.
