Mountain sweet pepperbush (Clethra acuminata)

Mountain sweet pepperbush

Clethra acuminata can reach as high as 6 m tall. It has acuminate leaves with teeth along the margins, and solitary white flowers.

Scientific classification

Species

Mountain sweet pepperbush (Clethra acuminata)

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Perennial

Lifespan

Tree, Shrub

Plant Type

Summer

Bloom Time

2.5 m to 6 m

Plant Height

1.2 m to 1.8 m

Spread

White

Flower Color

Deciduous

Leaf type

5 - 25 ℃

Ideal Temperature

Summer

Growth Season

Moderate

Growth Rate

Images of Mountain sweet pepperbush

Quickly Identify Mountain sweet pepperbush

Horizontal branching pattern distinguishes mountain sweet pepperbush as a deciduous tree or shrub.

Bell-shaped, fragrant white flowers on 3-8 inch (7.6-20.3 cm) racemes.

Peppercorn-shaped seed capsules in elongated clusters with woody texture.

Leaves with pubescent undersides, 3-6 inches (7.6-15.2 cm) long, turning vibrant yellow.

Distinctive exfoliating bark reveals cinnamon hue; slender trunk with intricate patterns.

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Care Guide for Mountain sweet pepperbush

Every 3 weeks

Water

Partial sun

Sunlight

5 - 25 ℃

Ideal Temperature

Water: Mountain sweet pepperbush thrives in humid woodland habitats, preferring consistent moisture but able to tolerate brief dry spells. Water every three weeks, ensuring the soil is evenly damp and well-draining to prevent root rot and maintain optimal hydration.

Fertilize: For mountain sweet pepperbush, use a balanced fertilizer (10-10-10) in spring to encourage growth and flowering, with a possible high nitrogen option for foliage. Fertilize once at the start and again mid-summer, ensuring proper dosage. Avoid fertilizing in winter and water the soil before application.

Pruning: Mountain sweet pepperbush produces clusters of fragrant, white flowers and thrives in moist, acidic soil. Early spring is the ideal time for pruning to remove dead branches and thin older stems, promoting air circulation and vigorous blooming while maintaining an aesthetically pleasing size.

Propagation: Mountain sweet pepperbush is a deciduous shrub with fragrant white flowers, ideal for landscaping. Propagate via cuttings from healthy semi-hardwood stems, ensuring well-draining soil and consistent moisture. Utilizing rooting hormone and bottom heat aids root development. Gradually acclimate rooted mountain sweet pepperbush before transplanting into its permanent spot.

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Common Pests & Diseases

Dark spots Leaf tip withering Yellow edges Dark blotch Leaf yellowing

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