Siberian iris are among the hardiest perennials I can think of. There were clumps of white iris, and deep purple iris around the house when we moved here 30 years ago. I've moved clumps of these around the garden, I've given them away to friends, donated them to plant sales, and I've even tossed divisions into the field and over to the edge of the road - see above. I don't want you to think I planted them…