The royal purple smoke tree, or Cotinus coggygria, produces large purple flowers in the spring and early summer. It works well for mass plantings, borders or as a main focal point in the landscape, according to The Morton Arboretum.
The purple smoke tree grows moderately fast. The Arbor Day Foundation defines this as vertical growth of 13 to 24 inches per year.
Environmental factors such as soil, water, light, planting zone and maintenance all play roles in the growth of any plant. The purple smoke tree grows best in zones 5 through 8 in locations with full sun.
The purple smoke tree reaches an average height of 12 feet at maturity, though this ranges between 10 and 20 feet. It spreads 10 to 12 feet across.
Foliage and Fruit
The tree's purple and red-colored leaves grow to a size of 2 to 4 inches. This deciduous tree also develops small, brown fruits of less than 1/2 inch in diameter. The tree's large flowers go through several color changes as the growing season progresses.
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