> Before we abandon this fascinating discussion as off-topic, can you tell me what constitutes a "suitable site" for these two irises? Jim and Mary Sue, It would be a stretch to call this group of irises geophytes - they are, err, kind of, herbaceous perennials that go back to a dormant crown in winter. They are infinitely superior herbaceous perennials though, and your comment about companion plants to geophytes gets them well and truly back on-topic. I have them growing next to Sanguinaria, Sternbergia sicula, Dicentra cuccularia and canadensis, Adonis amurensis, Galanthus reginae olgae and peshmennii, some Scilla species and Narcissus cyclamineus - all of which are bona fide geophytes. These latter plants also give the key to their preference for growing site - fairly rich and moist but very well drained sites with a reasonably sunny exposure for a good part of the day. Edge of woodland is ideal. They look lovely also with I. gracilipes forms - but then we are back to herbaceous perennials so time to check out...... 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