Sixteen Candles Summersweet
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A deciduous shrub prized for its fragrant, pure white flower spikes that bloom in mid- to late summer, attracting bees, butterflies, and other pollinators. The glossy green foliage provides ornamental interest throughout the growing season and turns shades of yellow in fall. Its naturally upright, rounded habit makes it ideal for borders, woodland gardens, or mixed shrub plantings.
Valued for its long-lasting, fragrant blooms, low-maintenance growth, and wildlife appeal, it grows best in full sun to part shade and prefers moist, well-drained soil. Once established, it is moderately tolerant of wind and urban conditions. Light pruning after flowering helps maintain shape and encourages vigorous rebloom.
| Fall Colour | Golden Brown |
|---|---|
| Shape | Oval |
| Sun Exposure | Partial Sun |
| Fruit | Capsule (Brown) |
| Latin Name | Clethra alnifolia 'Sixteen Candles' |
| Flower Colour | White |
| Mature Height ** | 1 Meter - 3 Feet |
| Mature Width ** | 1 Meter - 3 Feet 3 Inches |
| Growth Rate | Slow Growth |
| Zone | 4 |
| Native | No |
** Maturity Heights and Widths are listed to show what this plant can grow to in warmer climates and over the course of centuries. For landscape purposes in Ontario, take this value at 50% for appropriate spacing in your garden for immediate install purposes / for the next 10-20 years.