Living in the South East, we have a huge choice of Garden Centres and Nurseries, some are exceptional, some most decidedly are not. The best part about Garden Centres with A-Z staging, is that provided you know what you want, you can go straight to it and bypass the garden gnomes, jigsaw puzzles and Christmas decorations. We have some very good nurseries in the area, and sometimes they have unusual plants, and invariably a lot of Knowledge, which they are happy to pass on.
Inspiration?, look at other peoples gardens, read as much as you can, and take a good look at what Mother Nature does in the wild.