Cultivar Name Plant Size Leaf Color Variegation Var Color Origin Flower Color Season Source Registered 'Cascades' Medium Blue/Green Medial White Hybrid Pure-White July Lachman, Wm & Lachman, Eleanor .1993 'Cascades Streaked' Medium Med-Green Streaked Speckles Sport Pure-White July Lachman, Wm & Lachman, Eleanor --NR-- 'Cascading Waters' Large Med-Green Marginal White Hybrid Pale-Lavender August Dean, Don .2005 'Cedar River' Large Dark-Green - - Unknown - - Malloy, Alex --NR-- 'Chesapeake Bay' Large Blue/Green - - Hybrid Near-White July Petryszyn, Olga .2004 'Clattering Water' Medium Blue/Green - - Sport Med-Lavender - Fransen, Marco & Fransen, Joyce --NR-- 'Colorado River' Small Dark-Green - - Hybrid Pale-Lavender August Beilstein, Doug & Malloy, Alex .2005 'Connecticut River' Medium Blue/Green - - Hybrid Pale-Lavender - Beilstein, Doug & Malloy, Alex .2005 'Cosmic River' Medium Med-Green Streaked Yellow Hybrid Med-Lavender July into August Kuenster, Rod .2011 'Cosmic Watercolors' Medium Med-Green Streaked Yellow Hybrid Near-White July into August Kuenster, Rod .2011 'Crater Lake' Large Blue/Green - - Hybrid Near-White June into July Snyder, Ron .1996 'Crested Reef' Large Med-Green - - Hybrid Pale-Lavender July Minks, Eldren .1975 'Crested Surf' Medium Med-Green Marginal Creamy White Hybrid Light-Purple August Benedict, Dr Ralph (Herb) .1990 'Crossing the Rubicon' Medium Yellow - - TC Sport - June into July Zilis, Mark .2009 'Crossroads Whirlpool' Medium Blue/Green Streaked White Hybrid Pale-Lavender July into August England, Tim .2003 'Crystal Fountain' Large Yellow - - Sport Light-Purple July Banyai, Bruce .1999 'Cuyahoga' Medium Med-Green Marginal Yellow Hybrid - July into August Zilis, Mark .2009 'Cuyahoga Falls' Medium Dark-Green - - Sport - July into August Zilis, Mark .2010
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