| Cultivar | Plant Size | Leaf Color | Variegation | Var Color | Origin | Flower Color | Season | Source | Registered |
| 'Azure Snow' | Large | Blue/Green | - | - | Hybrid | Pale-Lavender | August to October | Ruh, Peter | .1991 |
| 'Back Bay' | Giant | Blue/Green | - | - | Hybrid | Near-White | June into July | Vaughn, Kevin & Walek, Kevin | .2009 |
| 'Blue Bayou' (Livingston) | Medium | Blue/Green | - | - | Hybrid | - | - | Livingston, Ron | --NR-- |
| 'Blue Betty Lou' | Large | Blue/Green | - | - | Hybrid | Pale-Lavender | July | Owens, Clarence | .1987 |
| 'Blue Bijou' | Small | Blue/Green | - | - | Unknown | - | - | Philips, Hugo | --NR-- |
| 'Blue Regal' | Large | Blue/Green | - | - | Hybrid | Pale-Lavender | June into July | Zilis, Mark | .2009 |
| 'Bluer than Blue' | Medium | Blue/Green | - | - | Hybrid | Pure-White | June into July | Goodwin, Randy | .2013 |
| 'Chesapeake Bay' | Large | Blue/Green | - | - | Hybrid | Near-White | July | Petryszyn, Olga | .2004 |
| 'Gold Regal' | Giant | Yellow | - | - | Unknown | Med-Lavender | July | Aden, Paul & Unknown | .1974 |
| 'Hallelujah' | Medium | Blue/Green | - | - | Hybrid | Med-Lavender | June into July | Zilis, Mark | .2010 |
| 'Kiwi Hippo' | Large | Med-Green | - | - | Hybrid | Light-Purple | July into August | Sligh, Barry | .1999 |
| 'Lakeside Blue Jeans' | Large | Blue/Green | - | - | Unknown | Pale-Lavender | July | Chastain, Mary | .2003 |
| 'Maekawa' | Medium | Med-Green | - | - | Nat-Sport | Pale-Lavender | July into August | Klehm, Roy & Walek, Kevin | .2009 |
| 'Something Blue' | Large | Blue/Green | - | - | Hybrid | Pale-Lavender | June into July | Simpers, Lucille & Ruh, Peter | .1991 |
| 'True Blue' | Large | Blue/Green | - | - | Hybrid | Pure-White | - | Aden, Paul | .1978 |
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