<Seems that 5.9 is not so acid to me either.> From memory, the pH scale is a log scale so pH 6 is ten times more acid than pH7 ! There are images of Crocus thomasii which I believe are correct on my web site (below). J. Dr John T Lonsdale 407 Edgewood Drive, Exton, Pennsylvania 19341, USA Phone: 610 594 9232 Fax: 801 327 1266 Visit "Edgewood" - The Lonsdale Garden at http://www.edgewoodgardens.net/ Zone 6b