Lois Hole in her book on perennials says they can be planted in spring or fall; I would suspect in our colder climate spring planting would be preferable. I've heard of a lot of gardeners on the Canadian prairies having good success with eremerus despite their zone 5 rating. I'm thinking their preference for a more sheltered location and hence micro-climates has a lot of bearing on that. Let us know how you make out with your potted eremerus Caroline; I am very interested in giving them a trial here as well. 😀
