Botanical profile

Clethra alnifolia 'Pink Spires'

Latin name
Clethra alnifolia 'Pink Spires'
Common name
Clethrum 'Pink Spires'
Type
Ornamental shrub
Family
Clethraceae

Clethra alnifolia ‘Pink Spires’ is an elegant ornamental shrub highly prized for its fragrant summer bloom in delicate pale pink hues. It forms a dense, rounded shrub, perfectly suited for beds, informal hedges, and naturalistic gardens, especially in moist or cool soils. In summer, it is covered with long, upright clusters of soft pink flowers, rich in nectar, which abundantly attract pollinating insects and add a soft and refined touch to the garden. Its deciduous dark green foliage turns beautiful golden-yellow shades in autumn, extending the decorative interest at the end of the season. Very hardy and well adapted to Quebec conditions, Clethra alnifolia ‘Pink Spires’ is easy to cultivate and is an excellent choice for combining fragrance, color, and ecological value.

Care guide

Growing conditions

Light, soil, water and hardiness

Hardiness zone
Hardiness zones 3–9
Exposure
Sun to partial shade
Watering
Regular to abundant
Fertilization
Little necessary, compost in spring
Soil type
Wet to saturated, acidic to neutral
Minimum temperature
-40°C
Plant appearance

Blooming, foliage and shape

Blooming period
Summer
Flower color
Pale pink
Fruiting
Small persistent brown capsules
Foliage color
Dark green → yellow in autumn
Foliage type
Obsolete
Shape
Dense and rounded shrub
Garden structure

Size and growth

Height
1.5–2 m (5–6.5 ft)
Width
1.5–2 m (5–6.5 ft)
Growth rate
Moderate
Pollinators
Attracts or supports pollinating insects

Pollinators

Butterflies
Plants that attract butterflies

Butterflies

The availability of our plants varies depending on arrivals, seasons, nursery production and supplier availability. Some varieties may be offered for a limited time only, depending on their natural cycle or current stock. These plant profiles are designed to guide and inspire you when choosing plants for the garden, landscaping projects, containers or long-lasting outdoor arrangements.