Named after Seemann.
A smooth leaved self-clinging evergreen climber with flat heads of white lacecap flowers opening from large round buds like enormous peony buds Jul-Sep It is slightly tender and is best on a sheltered wall and given some protection in very cold periods.
Gardens found in the 28 pre 2000 surveyed: DA LHS EBG GN HC LAG TR MS WR
Gardens found in the 10 surveyed in 2010: DA LHS EBG WS HIL ESV KAL NAN AW
UKPlant Finder: 2012 = 51 nurseries