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Key characteristics

Family: Ericaceae
Height: 8 to 12 inches
Width: 18 to 24 inches
Flower color: Soft lavender to pale purple flowers
Foliage color: Silvery-gray foliage that may develop purple tones in winter
Bloom time: Late summer to early fall
Light: Full sun
Water: Low to moderate
Maintenance: Low; trim back after flowering to maintain compact growth
Growing zone: USDA Zones 4 to 6
Wildlife: Bees, butterflies, and other pollinators

Groundcovers

Calluna vulgaris 'Silver Knight'

Silver Knight Scotch Heather

Calluna vulgaris 'Silver Knight' is a compact evergreen shrub known for its silvery-gray foliage and delicate blooms. In late summer to early autumn, it produces an abundance of soft lavender-pink flowers that contrast beautifully with the muted tones of its foliage. During winter, the foliage takes on purple tints, adding seasonal interest to gardens even in colder months.

Originating from the moorlands of Europe, this cultivar was selected for its unique foliage and ability to thrive in challenging conditions.

Light

Full sun

Water

Low to moderate

Bloom time

Late summer to early fall

Find this plant

Works well in

Pollinator Gardens
Containers
Borders
Rock Gardens

Companion plants

Blue fescues · Rockroses · Dianthus · Dwarf junipers · Sea thrifts · Creeping phlox

Design tip

Incorporate this heather into planting designs that rely on foliage as much as flowers for visual impact. Its cool silver tones provide a restful contrast, helping brighter blooms and richer greens appear more vibrant without competing for attention.

Printable plant sheet (PDF)