Rootstock

Name only

Deborah Conibear Garden Designer

  • Design Service
  • Blog
  • PLANT OF THE MONTH
  • Get in touch

Cotinus coggyria ‘Royal Purple’

A popular, hardy shrub grown for its dusky purple, oval leaves that turn red in November. It’s deciduous, but holds on to its leaves quite late in the autumn and in my garden it’s just starting to perform its seasonal fiery display.

Also known as the ‘Smoke bush’, in July and August it is festooned with fluffy plumes of purplish-pink flowers that look like a haze of smoke. I don’t get so much ‘smoke’ on my shrub as I hard prune it in early spring to get the biggest paddles of leaves. Its striking foliage forms a good backdrop for tall perennials at the back of a mixed border.

Close up of the deep purple leaves of Cotinus coggyria ‘Royal Purple’

Leaves still quite purple – 4 November.

Close up of Cotinus coggyria ‘Royal Purple’ deep coloured leaves

The same leaves a week later turning colour.

Left to grow on, this shrub can reach 5m high and wide, so make room for it or be prepared to prune.  A position in full sun is preferred.

Looking up at Cotinus coggyria ‘Royal Purple’ against a blue sky

The red and orange colours move upwards until the shrub’s purple foliage is just hanging on at its tips – 13 November.

Filed Under: Plant of the month Autumn November

Recent plants of the month

August
A bumble bee settles on a lilac blue Agastache

Agastache ‘Black Adder’

July
Echinops ritro Veitchs Blue IMG

Echinops ritro ‘Veitch’s Blue’

June
Sisyrinchium striatum

Sisyrinchium striatum

May
Close up of the deep maroon petals of Primula pulverulenta

Primula pulverulenta (Mealy primrose)

© 2026 · Rootstock · Deborah Conibear · Data Privacy Notice