Spring all over again!

As there's nothing to repeat the spring display of rhododendrons later in the year, I once hit on the idea of growing a late clematis over every rhododendron!

I've planted quite a lot, but a minute fraction of the possible! This, I think, is Clematis 'Etoile Violette' (I forgot to check) growing not over a rhododendron, but over a box.