| Cultivar Name | Plant Size | Leaf Color | Variegation | Var Color | Origin | Flower Color | Season | Source | Registered |
| 'Hallelujah' | Medium | Blue/Green | - | - | Hybrid | Med-Lavender | June into July | Zilis, Mark | .2010 |
| 'Hans Solo' | Giant | Dark-Green | - | - | Hybrid | Pale-Lavender | July into August | Hansen, Hans | --NR-- |
| 'Happily Ever After' | Medium | Med-Green | Marginal | Creamy White | Hybrid | Near-White | August | Wilkins, Dr Jim & Wilkins, Sandy | .2002 |
| 'Heart Throb' | Medium | Blue/Green | - | - | Unknown | Pale-Lavender | June | Anderson, Kenneth | .1982 |
| 'Heartbreaker' | Medium | Yellow | Marginal | Green | Sport | Pale-Lavender | July | Ward, Dr Dick & Ward, Jane | .2012 |
| 'Heaven and Earth' | Large | Med-Green | Medial | White | Sport | Pale-Lavender | August | Soucek, John | --NR-- |
| 'Hercules' | Giant | Blue/Green | - | - | Hybrid | - | July | Goffery, James & Summers, Alex | --NR-- |
| 'Here's Lookin' at You Kid' | Large | Light-Green | Marginal | Yellow | Sport | Med-Lavender | July into August | Van Ostrand, John | --NR-- |
| 'Hideout' | Small | Med-Green | Medial | White | Sport | Light-Purple | July | Jones, Leonard | .2006 |
| 'High and Mighty' | Large | Blue/Green | Medial | Yellow | Hybrid | Near-White | July | Elslager, Ed | .2003 |
| 'High Command' | Large | Dark-Green | - | - | Hybrid | - | - | Malloy, Alex | --NR-- |
| 'High Country' | Medium | Dark-Green | Medial | White | Sport | Pale-Lavender | July into August | Benfield, Jeff | .2004 |
| 'High Fidelity' | Large | Yellow | - | - | Hybrid | Pale-Lavender | June into July | Gilligan, Madelon | .2013 |
| 'High Noon' | Large | Yellow | - | - | Unknown | Pale-Lavender | June into July | Seaver, Mildred | .2004 |
| 'High Society' | Small | Blue/Green | Medial | White | Sport | Pale-Lavender | July | Hansen, Hans & Shady Oaks Nursery | .2004 |
| 'High Voltage' | Medium | Med-Green | Medial | Yellow | Sport | Pale-Lavender | July | Van den Top, Jan | --NR-- |
| 'Hollywood Beetle Juice' | Small | Med-Green | | | Unknown | | | Moore, Jeff | --NR-- |
| 'Hollywood Shere Khan' | Medium | Dark-Green | Medial | White | Unknown | Pure-White | | Krueger, Michael & Krueger, Fran | --NR-- |
| 'Holy Grail' | Small | Light-Green | Marginal | Blue-Green | Sport | Pale-Lavender | July into August | Deckert, Emile & Deckert, Jane | .2004 |
| 'Honey Boy' | Medium | Med-Green | Marginal | Yellow | Unknown | - | - | Livingston, Ron | --NR-- |
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