They are incredible. It states on the Society website that aril's are just as hardy as bearded iris. Any zone 3 growers out there, or close to? Our wettest month is usually June but I do have some very dry spots in the new yard. There is also a good article in SRGC's The Rock Garden issue 116, on growing aril iris written by John Lonsdale. Linda Foulis Okotoks, AB Zone 3 It hasn't rained today, yet!