Clematis Ernest Markham is offered in a full gallon size with free shipping! Clematis 'Ernest Markham' has 4-6inch, magenta-red petals with a velvety sheen and golden anthers. Very floriferous! Wallside and trellises. This classic hybrid produces magenta or deep-red flowers. Cultivation. Suggested uses. Its 4-6" diameter pinkish-red, magenta blooms are produced profusely on the current year's growth. Desiring a sunny location but with shaded "feet" or roots, this clematis is sure to make its home on your arbor, trellis, or decorative wall. The Ernest Markham Clematis is truly a wonder to behold! Its average texture blends into the landscape, but can be balanced by one or two finer or coarser trees or shrubs for an effective composition. Ernest Markham Clematis is a multi-stemmed deciduous woody vine with a twining and trailing habit of growth. An easy and vigorous plant, Ernest Markham is best grown in full sun in northern climates. Try with White Dawn Rose as … Plant in fertile, well-drained soil especially chalky soils. Clematis 'Ernest Markham' (Clematis 'Ernest Markham') will reach a height of 4m and a spread of 1m after 2-5 Years. Needs sun to produce good flower display.