| Cultivar Name | Plant Size | Leaf Color | Variegation | Var Color | Origin | Flower Color | Season | Source | Registered |
| 'Water Lily' | Large | Med-Green | - | - | Unknown | - | - | O'Harra, Russ | --NR-- |
| 'Water Wings' | Large | Yellow | - | - | Hybrid | Near-White | July | Van Ostrand, John | --NR-- |
| 'Waterball' | Large | Blue/Green | | | Unknown | | | Moore, Jeff | --NR-- |
| 'Water's Edge' | Medium | Blue/Green | - | - | Unknown | - | - | Stegeman, Bev & Stegeman, Dave | --NR-- |
| 'Waterslide' | Medium | Blue/Green | - | - | Hybrid | Med-Lavender | August | Hansen, Hans & Walters Gardens | .2018 |
| 'Waterworks' | Small | Med-Green | Streaked | White | Hybrid | Light-Purple | July | Malloy, Alex | .2003 |
| 'Waukon Water' | Medium | Blue/Green | - | - | Unknown | Pale-Lavender | - | Axmear, Bob | --NR-- |
| 'Wave Runner' | Large | Med-Green | Marginal | Yellow | Sport | Light-Purple | July | Van Ostrand, John | .2007 |
| 'Whitefish Dunes' | Medium | Med-Green | - | - | Hybrid | - | - | Moore, Jeff | --NR-- |
| 'Whitewater' | Miniature | Med-Green | Streaked | Speckles | Unknown | - | - | Tower, Alan | .2002 |
| 'Wild River Gold' | Small | Yellow | - | - | Unknown | - | - | Janssen, Bill | --NR-- |
| 'Wind River Gold' | Large | Yellow-Gold | - | - | Unknown | Pale-Lavender | July | Janssen, Bill | .2009 |
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