you could deck it with pallets . these oblong pallets cost me £2 each .
You could try your local "freecycle" for free pallets - people often have some to give away. (We have 3 at the moment but you're a bit far away.....)
And once the pallets are in place there is no end you can do with pots. Check out our very own Potty Gardeners pics on the Garden Gallery 2013 thread for some inspiration
Love those pics addict... think that or similar would look great in between your patch snowbelle.
Thanks so much everyone for all your help! I've certainly lots of ideas! Just need to make them happen!