JennyC wrote:
Geraniums - both upright and trailing. they flower for ages and give wonderful
colour. There is a huge range of foliage types to make it even more interesting.

Coo, what a lovely idea. Scented pelargoniums ... nutmeg, cinnamon,
mint scented rose geranium, pepermint and the Village Hill Oak one has
lots and lots of scented flowers, deep wood I beleive. The Skeleton one
has thin leaves ... there's so many!

Though, I'd put some veg in there if it was me ;o)