Pots, lots of pots. With pots you can place them among other blooms, unless, of course, you want to plant them all together which is also beautiful.
I'm fascinated with them. And they are so easy to grow. And since it was my first year to have them, I thought planting in pots would be the best way for me. Now that I know what I'm doing (!) I might change my mind next summer and make some raised beds for them. I think they would be so pretty planted together in a mound. Our hot summer sun hasn't bothered them, though I do have to water frequently. Your area might be warmer than mine but humidity also helps them.