Seems folly for me to try them in my zone 3. My soil is clay and dry parched silt as a top layer. We are near desert conditions here. Eremurus should love it! My downfall will be the Chinooks I think. Thank you very much for that account Jim. First hand details like that are priceless. Linda Foulis Okotoks, AB Canada The only plant still hanging on are the colchicums. We've had -10C and snow. Tough bulbs!