| Cultivar | Plant Size | Leaf Color | Variegation | Var Color | Origin | Flower Color | Season | Source | Registered |
| 'Amos' | Large | Blue/Green | - | - | Unknown | Near-White | June into July | Petryszyn, Olga | --NR-- |
| 'Auntie Anne' | Giant | Yellow | - | - | Hybrid | Pale-Lavender | June into July | Balitewicz, Bob | --NR-- |
| 'Big Boy' | Giant | Med-Green | - | - | Hybrid | Pale-Lavender | July | Simpers, Lucille | .1986 |
| 'Big John' | Giant | Med-Green | - | - | Hybrid | Near-White | June into July | Owens, Clarence | .1986 |
| 'Big John's Brother' | Giant | Blue/Green | - | - | Unknown | - | - | Unknown | --NR-- |
| 'Big John's Gold' | Large | Yellow | - | - | Nat-Sport | - | - | Unknown | --NR-- |
| 'Biggie' | Giant | Med-Green | - | - | Hybrid | Pale-Lavender | July into August | Elslager, Ed | .2003 |
| 'Birchwood Elegance' | Giant | Blue/Green | - | - | Hybrid | Pure-White | June into July | Shaw, Florence | .1986 |
| 'Bluetonium' | Large | Blue/Green | - | - | Hybrid | Near-White | June into July | Balitewicz, Bob | --NR-- |
| 'Chief White Cloud' | Giant | Blue/Green | - | - | Hybrid | Pale-Lavender | August | Wade, Van | .2007 |
| 'Colossal' | Giant | Blue/Green | - | - | Unknown | Pale-Lavender | June | Savory, Robert | .1977 |
| 'Corduroy' | Giant | Dark-Green | - | - | Hybrid | Med-Lavender | July | Moldovan, Steve | .1983 |
| 'Emerald City' | Giant | Med-Green | - | - | Hybrid | Pale-Lavender | June into July | Ward, Dr Dick & Jane | .1996 |
| 'Empress Wu' | Giant | Dark-Green | - | - | Hybrid | Pale-Lavender | June into July | Skaggs, Virginia & Brian | .2008 |
| 'Fiftieth Anniversary' | Medium | Dark-Green | Marginal | Yellow | Hybrid | - | June into July | Graves, Butch | .2016 |
| 'Giantland Yellow Dome' | Giant | Yellow | - | - | Hybrid | - | - | Miller, Jeff | --NR-- |
| 'Godzilla' | Large | Blue/Green | - | - | Hybrid | Pale-Lavender | July | Ward, Dr Dick & Jane | .1996 |
| 'Green Acres' | Giant | Dark-Green | - | - | Unknown | Pale-Lavender | July | Geissler, Julia | .1970 |
| H. montana | Large | Med-Green | - | - | Unknown | Pale-Lavender | June into July | Species from Japan | --NR-- |
| 'Holy Toledo' | Large | Dark-Green | Medial | Yellow | Hybrid | Pure-White | June into July | Graves, Butch | .2011 |
| 'Homecoming Queen' | Large | Med-Green | - | - | Hybrid | - | - | Balitewicz, Bob | .2012 |
| 'Jolly Green Giant' | Giant | Med-Green | - | - | Unknown | Pale-Lavender | June into July | Armstrong, Maxine & AHS | .1986 |
| 'King Michael' | Giant | Med-Green | - | - | Hybrid | Near-White | June | Krossa, Gus & Summers, Alex & Ruh, Peter | .1992 |
| 'Krossa B-3' | - | - | - | - | xDuplicate | - | - | Krossa, Gus | --NR-- |
| 'Krugerrand' | Medium | Yellow | - | - | Hybrid | - | - | Balitewicz, Bob | --NR-- |
| 'Michigander' | Large | Med-Green | Marginal | Yellow | Nat-Sport | Near-White | June into July | Struhar, Bill | .2018 |
| 'Mikado' | Giant | Dark-Green | - | - | Hybrid | Pale-Lavender | - | Aden, Paul | .1982 |
| 'Mira' | Giant | Blue/Green | - | - | Nat-Sport | Pale-Lavender | June into July | Maekawa, Dr Fumio & AHS | .2002 .2018 |
| 'Pebble Creek Grey Roses' | Large | Blue/Green | | | Hybrid | Near-White | June into July | Kovalcsik, Joanna | .2020 |
| 'Silver Giant' | Giant | Blue/Green | - | - | Hybrid | Near-White | June into July | Owens, Clarence | .1987 |
| 'Stonewall' | Giant | Blue/Green | - | - | Hybrid | Light-Purple | June into July | Malloy, Alex | .2001 |
| 'Surfboard' | Large | Med-Green | Marginal | Yellow | Hybrid | - | July into August | Graves, Butch | .2016 |
| 'Sutter's Mill' | Large | Yellow | - | - | Hybrid | Pale-Lavender | June into July | Balitewicz, Bob | --NR-- |
| 'T Rex' | Giant | Med-Green | - | - | Hybrid | Near-White | June | Ward, Dr Dick & Jane | .1999 |
| 'Valley's Ice Giant' | Giant | Blue/Green | - | - | Hybrid | Pale-Lavender | July into August | Linneman, Jeroen | .2015 |
| 'Valley's Whale Rider' | Large | Blue/Green | - | - | Hybrid | Near-White | August to September | Linneman, Jeroen | .2018 |
| 'Xanadu Xanthippe' | Giant | Light-Green | Medial | Dark Green | Hybrid | Med-Lavender | - | Skaggs, Virginia & Brian | --NR-- |
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