I know what you mean, Andy and Marion. Gardener's World is a major culprit: after seeing Monty D planting a wall with roses and clematis the other week, I did some incontinent spending, both on-line and in the real world, and ended up with climbing plants galore. 2 clematis went in the garden, and 'Golden Showers' and 'Morning Jewel' roses are now planted by the allotment fence, with another clematis about to climb the shed. It's the names that seduce me more than the colours. So I've overpopulated my allotment with raspberry canes: Belle de Malicorne, Malling Admiral, Polka - how could anyone resist?!
http://www.mandysutter.com/day-570-a-friend-in-weed-is-a-friend-indeed/