| Cultivar Name | Plant Size | Leaf Color | Variegation | Var Color | Origin | Flower Color | Season | Source | Registered |
| 'Wayne' | Medium | Med-Green | Marginal | Yellow | Sport | Pale-Lavender | July into August | Krossa, Gus & Ruh, Peter | .1999 |
| 'Wayside Blue' | Medium | Blue/Green | - | - | Unknown | Near-White | June into July | Ruh, Peter | .1989 |
| 'Weihenstephan' | Small | Med-Green | - | - | Hybrid | Pure-White | August | Mussel, Hermann & Klose, Heinz & Ruh, Peter | .2003 |
| 'Weser' | Medium | Blue/Green | - | - | Unknown | Med-Lavender | August to September | Klose, Heinz & Ruh, Peter & Ruh, Jean | .2003 |
| 'White Christmas' | Medium | Med-Green | Medial | White | Sport | Pale-Lavender | July into August | Krossa, Gus & Ruh, Peter | .1983 |
| 'White Heron' | Medium | Dark-Green | - | - | Hybrid | Pure-White | August | Sugita, Hajime & Ruh, Peter | .2001 |
| 'White Knight' | Large | Med-Green | - | - | Unknown | Pure-White | July into August | Krossa, Gus & Ruh, Peter | .2004 .2018 |
| 'White Mule' | Medium | Med-Green | - | - | Unknown | Pure-White | August | Summers, Alex & Ruh, Peter | .1998 |
| 'Willamette' | Large | Light-Green | - | - | Hybrid | Pure-White | August | Tompkins, Chet & Ruh, Peter | .2003 |
| 'William Henry Harrison' | Large | Light-Green | - | - | Unknown | - | - | Ruh, Peter & Ruh, Jean | .2010 |
| 'Willy Nilly' | Giant | Blue/Green | - | - | Unknown | Near-White | June into July | Holly, Gladys & Ruh, Peter | .1998 |
| 'Woodland Blue' | Large | Blue/Green | - | - | Hybrid | Near-White | June | Simpers, Lucille & Ruh, Peter | .1993 |
| 'Woodland Green' | Large | Med-Green | - | - | Hybrid | Near-White | June | Simpers, Lucille & Ruh, Peter | .1990 |
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