What kinds of containers were you thinking about using?
Do you want to build raised beds, or use pots?

Irises are easy to grow in wine barrels, as are canna lilies. You can plant glad corms in with iris rhizomes. The iris leaves help hold the glads upright. All of these plants like plenty of sun.

There are even some irises that will rebloom.

Renee

Most of the big hardware stores, OSH, Home Depot, Lowes, etc. have good sized plastic containers, almost the size of a half barrel, that can be used to grow many veggies, bulbs and annuals. I use one to grow lettuce all year, making succession plantings. But I also grow root crops, such as carrots, and summer squash, tomatoes, etc. in them. I also grow anual flowers and some perennials in smaller containers. Use a good planting mix, one that doesn't pack up too tight when watered.