"Does anyone else in our group grow Cypripedium?" http://edgewoodgardens.net/Plants_album/… idaceae/Cypripedium/index.html Cypripedium kentuckiense, parviflorum ssp. pubescens and parviflorum ssp. parviflorum grow very well here. C. acaule would grow if I could keep the substrate sufficiently acid (artificially). The Chinese species, European species and those from the mid-west and western USA are a disaster - they hate our hot and humid summers. Those pictured on my web site survived at most 2-3 years after flowering. Some of the pubescens/parviflorum/kentuckiense hybrids with the 'easier' Chinese species will probably do OK. Best, J. John T Lonsdale PhD 407 Edgewood Drive, Exton, Pennsylvania 19341, USA Home: 610 594 9232 Cell: 484 678 9856 Fax: 801 327 1266 Visit "Edgewood" - The Lonsdale Garden at http://www.edgewoodgardens.net/ USDA Zone 6b