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Sixteen Candles Summersweet

Clethra alnifolia 'Sixteen Candles'

  • Sixteen Candles Clethra Blooms Late Summer in Shade Where Few Shrubs Flower
  • Thrives in Zones 3-9
  • Grows 2-3 ft Tall and Wide
  • Deer Resistant, Disease Resistant, Salt Tolerant
  • Native, Pollinator-Friendly - Attracts Bees and Butterflies
Regular price $8691
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Plant Size

Specifications

Plant specifications
Plant Characteristics Flowering, Fragrant, Cold hardy, Disease resistant, Attracts pollinators
Hardiness Zone 3a to 9b
Sunlight Full sun, Partial shade
Height 2-3 ft
Width 2-3 ft
Watering Needs High
Preferred Soil Clay, Loamy, Peaty, Sandy
Growth Rate Slow
Growth Habit Bushy, Compact, Upright
Blooms In Summer
Flower Color White
Foliage Color Green
Fragrant Yes
Native Yes
Suitable Space Outdoors
Botanical Name Clethra alnifolia 'Sixteen Candles'
Species alnifolia
Cultivar Sixteen Candles
Class Magnoliopsida
Does Not Ship To AK, HI, ID, MT, PR

Frequently Asked Questions

What planting zones is Sixteen Candles Summersweet hardy in?

  • Sixteen Candles Summersweet is hardy in USDA zones 4-9. This adaptable shrub tolerates a wide range of climates from cold northern regions to warmer southern areas. Plant it in your shady, moist spots for best results.

How tall and wide will Sixteen Candles Summersweet get at maturity?

  • Sixteen Candles Summersweet reaches 4-6 feet tall and 3-4 feet wide at maturity. This compact size makes it perfect for foundation plantings or mixed borders in shady spots. Plan adequate spacing when planting multiples available at naturehills.com.

Does Sixteen Candles Summersweet prefer full sun or partial shade?

  • Sixteen Candles Summersweet prefers partial shade to full shade rather than full sun. This shade-tolerant shrub actually thrives in shady, moist conditions where many other flowering plants struggle. Plant it in those darker spots of your yard where you want fragrant summer blooms and reliable performance.

What type of soil does Sixteen Candles Summersweet need to thrive?

  • Sixteen Candles Summersweet thrives in moist, well-draining soil and tolerates various soil conditions. This adaptive shrub particularly excels in consistently moist areas near water features or naturally damp spots. Plant it where soil stays moderately wet for best flowering performance.

How often should I water my newly planted Sixteen Candles Summersweet?

  • Water newly planted Sixteen Candles Summersweet 2-3 times weekly for the first month, then reduce as roots establish. This shade-tolerant shrub prefers consistently moist soil conditions. Check soil moisture regularly and maintain even watering through the first growing season for best results.

Is Sixteen Candles Summersweet a fast-growing or slow-growing shrub?

  • Sixteen Candles Summersweet has a moderate growth rate, typically adding 12-24 inches per year once established. This deciduous shrub reaches maturity in 3-5 years. Plant in spring for best establishment and expect those signature fragrant white flower spikes by the second summer.

Is Sixteen Candles Summersweet deer resistant?

  • Sixteen Candles Summersweet is generally deer resistant, as deer typically avoid plants in the Clethra family due to their fragrant foliage and flowers. The strong summer fragrance that attracts pollinators tends to deter browsing deer. Plant it in your shady, moist areas where deer pressure is often highest.

Does Sixteen Candles Summersweet need to be pruned and if so, when?

  • Sixteen Candles Summersweet requires minimal pruning due to its low maintenance nature. Since it blooms on new wood in mid-to-late summer, prune in late winter or early spring if needed. Focus on removing dead wood and shaping rather than heavy pruning to maintain its natural form.