We have a bed running along the side of the house which is entirely under the eaves (they poke out a long way). One corner, by the front door, is especially sheltered, and very rarely seems to get much in the way of rain - even the weeds are struggling! As it's in a fairly prominent position, I need something in there, but it's going to need to be extremely drought-tolerant (we don't really use front door and I'd never remember to water there). Any suggestions? I wondered about lavender, but don't know if it would cope.