Trees

Cotinus coggygria 'Royal Purple'

Royal Purple smoketree

Royal Purple smoketree. Cotinus coggygria 'Royal Purple'.

Rich purple leaves give this large shrub or small tree a strong presence throughout the growing season. Fine, airy hairs on the faded flower stalks create its smoky summer effect. It works as a focal point or background plant, with the best foliage color in sun.

At a glance

Sun: Full sun
Size: Height: 10 ft.–15 ft. · Width: 15 ft.–20 ft.
Water: Moist, well-drained soil
Hardiness: USDA zones 4–8

Sizes & prices

B&B 5'Smoke Bush$249.99

Catalog updated September 8, 2026. This is not a live stock count; please call to confirm availability and price.

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Landscape use & tree form

Use: Ornamental specimen; Screening
Form: Erect; Open; Spreading
Growth rate: Medium
Major issues: Occasional Verticillium wilt, rust or leaf spots; resinous sap may irritate skin.
Fruit / litter: Small dry fruits in the smoky flower clusters; not normally a significant litter problem.

Resistance & tolerances

Deer: Listed as resistant; protect young trees from browsing and antler rubbing.
Drought: Tolerant once established; water during establishment and prolonged dry spells.
Wet soil: Intolerant of overly wet soil.

Resistance is not a guarantee; deer and rabbits may browse any plant.

Pollinators & wildlife

Caterpillar host: Butterflies and moths
Evidence: Genus-level guidance; cultivar habitat value varies.

Seasonal interest

Foliage: Deciduous

Growing & care

Pruning: Prune in late winter or early spring. Hard cutting encourages colorful new foliage but sacrifices the smoky flower display.
Soil: Well-drained; brief dry periods tolerated

Sources & photo credits

NC State Extension

University of Minnesota Extension

University of Florida IFAS

Photo: David J. Stang · CC BY-SA 4.0

Image notes: Royal Purple smoketree. Cotinus coggygria 'Royal Purple'. Resized and converted to WebP.

Reviewed September 22, 2026. Growing conditions vary by location.