Posted: 23/04/2012 at 11:21
Definitly C. Montana Rubens, rampant and gorgeous - useful to grow other, larger flowered clematis through later in the season. The leaves remain attractive till they fall in autumn. C. Montana 'Elizabeth' has larger, flatter pink flowers, is not quite as rampant, though still achieves a good size - lovely vanilla type perfume. It is said you cannot grow Montana in a container, though I have one in a large plastic container, rectangular, abut 20 x 14 inches, 10 inches deep, where it has been for several years. It went in there 'temporarily' some 7 years ago, and never got moved on. It is slightly less rampant than its twin on the other side of the garden, but not much, and is currently heavily laden with buds which will open any day now given some sunshine.