Ivy: You couldn't go wrong with the book Perennials for American Gardens by Ruth Rogers Clausen and Nicolas H. Ekstrom. -- Diana Pederson, Michigan, Zone 5 (4) http://www.geocities.com/~euphorbia/index.html http://www.geocities.com/~euphorbia/IGS/index.html http://www.suite101.com/frontpage/frontpage.cfm?topicid=262 --------------------------------------------------------------------- To sign-off this list, send email to majordomo@mallorn.com with the message text UNSUBSCRIBE PERENNIALS