At Eagle Ridge Iris Gardens, we have approximately 5000 different varieties of Iris. We are located in Montana zone 4b, and our growing season is quite a bit shorter. Our rhizomes are smaller because of this. They are very well acclimated to northern growing zones.
We basically grow/hoard iris for our own enjoyment. We sell the increases of the best growers to make room for more of the 80,000 iris varieties out there.