This lovely old variety will produce a magnificent show of light, magenta-red, 10.0 - 12.5cm flowers in late-summer to mid-autumn. the six broad tepals have a deeply textured surface and crimped margins that overlap and taper to a recurved, pointed tip. The stamens are a dull beige. Clematis Ernest Markham was named after William Robinson's Head Gardener at Gravetye Manor in East Sussex in the UK in 1937.
Recipient of the Royal Horticultural Society Award of Garden Merit in 1993 for its outstanding qualities.