Royal Purple Smoke Smokebush
Cotinus coggygria ‘Royal Purple’
Plant Details
USDA Cold Hardiness Zones: 4a-8b Find Your Zone
Shrub Type: Deciduous Flowering Shrub or Tree
Height at Maturity: 10-15′
Width at Maturity: 15-18′
Spacing: 8′ for solid hedges; 16 feet for space between plants
Growth Habit / Form: Broad, Upright
Growth Rate: Slow to Moderate
Flower Color: Pinkish-Purple
Flower Size: 8-10″ panicles
Flowering Period: Spring through Summer
Flower Type: Single flowers in clusters
Fragrant Flowers: No
Foliage Color: Reddish-Purple to Deep Purple in Summer
Fragrant Foliage: No
Berries: No
Berry Color: No
Sun Needs: Full to Mostly Sun
Water Needs: Average, Low when established
Soil Type: Clay(amended), Loam, Sandy(amended), Silty
Soil Moisture / Drainage: Well Drained Moist to Dry when established
Soil pH: 6.0 – 8.0 (Acid to Moderately Alkaline)
Maintenance / Care: Low
Attracts: Visual Attention
Resistances: Deer, Drought, Insect
Description
The Royal Purple Smoke Tree is a magnificent large shrub or small tree that gets its name from the unique, pinkish-purple smoke-like flower “puffs” that cover the tree in abundance throughout the summer. But it’s the foliage that distinguishes ‘Royal Purple’ from other varieties in the genus. Ovate to obovate Eucalyptus-like leaves to 3 inches long emerge a rich maroon red in spring, gradually maturing to deep purplish-red to purplish-black in summer. The flowers contrast beautifully against the dark leaves that hold their color well throughout the season turning to a striking scarlet in fall.
Please Note: Unless otherwise noted, our Royal Purple Smoke Trees are usually multi-trunk shrubs. This allows our customers to choose to grow them naturally as a shrub or to lower branches over time to form an attractive small tree.
Landscape & Garden Uses
A slow grower with a broad and rounded form, the Royal Purple Smoke Tree will eventually top out at 15 feet, making it a great choice for a number of planting options throughout the landscape or garden. It can be grown as a large shrub or lower branches can be removed to form a very attractive, single- or multi-trunk small tree. Because it’s so unique, we usually recommend planting it as a stand-alone specimen in the landscape, as we do with Japanese Maples. That said, small groupings are nice as well, or plant one on both sides to accentuate or frame an entryway or structure. Ideal for use in purple-themed color gardens and Xeriscaping (low water need landscapes)
Suggested Spacing: 8 feet apart for solid hedges; 16 feet for space between plants
Growing Preferences
The Royal Purple Smoke Tree is very easy to grow in a moist but well-drained soil of average fertility and full sun to mostly sun for best foliage color and flowering. Good drought tolerance when established. Constantly soggy or wet soil can be problematic. Exceptionally low maintenance with little to no pruning necessary when grown as a shrub. That said, with some careful pruning you can train this shrub to form an attractive, single- or multi-trunk tree.
Plant Long & Prosper!
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