Many claim they have little success growing clematis.
But if they tried C montana rubens they’d probably have another problem – keeping it under control.
It is very pretty and full of flowers – but very vigorous. In free-draining oil and a sunny spot it will leap away, producing masses of clinging tendrils.
It is brilliant for clothing eyesores and clambering through trees, but on a house wall or in a well-kept garden it needs cutting back hard once it’s finished flowering.