It was named for the clematis flower.
In theory, it is possible to have a clematis in flower at any time throughout the year.
It grows to 68 feet high and tolerates shade well compared to other varieties of clematis.
The water garden includes seasonal displays of iris, roses, delphiniums, day lilies, clematis, and dahlias.
The walled garden contains roses, wisteria, clematis, jasmine and a water feature.
An old clematis arch at the winter garden terrace has been restored.
He has displayed clematis at horticultural shows worldwide.
Riparian areas support white alder, mockorange, western chokecherry, clematis, willows, black cottonwood, and water birch.
