Love your garden ( Tuesday's episode)

Evening folks :-)

Just caught up on Tuesdays programme of love your garden and I am quite taken with the green and white theme of it. Thing is, it's for the garden at the caravan, so it needs to be able to look after itself for sometimes weeks on end. The neighbours will water when I'm not there but I'm in need of ideas for white plants that will take a bit if neglect.

Perennials and evergreens would be the mainstay, but very little in the way of annuals because of the lack of time I can put in. It's heavy clay too, so very heavy and waterlogged in the rainy days. Also, there will be a lot of planters, so the clay hating stuff can go in these.

I'm thinking agapanthus, hydrangea, Lilies, roses, dahlias, clematis, but I'm stuck on what else. One border will be 36ft long and 4ft deep. ( the main one which fronts woodland and a stream ) The others will be a lot shorter.

Ta a lot in advance for your advice, ideas and suggestions.

Al.