I have many score of "conservatory" specimens—tender plants that I grow individually in containers, and which I overwinter year by year—so that I can enjoy long-term explorations with horticulture that isn't otherwise hardy here. Just-for-the-season container plantings are the opportunity for speculatory and even manic combinations that might last barely one season, let alone thrive year after year. No matter: whether a success or failure, the gig is up by hard frost.
Here's one: a huge container of delicate variegated abutilons and kick-ass South African shrubs known as lion's ears. Just for the Summer, the lion was able to lay down with the lamb.