| Cultivar | Plant Size | Leaf Color | Variegation | Var Color | Origin | Flower Color | Season | Source | Registered |
| 'Hadspen Blue' | Large | Blue/Green | - | - | Unknown | Pale-Lavender | July into August | Smith, Eric & Aden, Paul | .1976 |
| 'Hadspen Blue Streaked' | Medium | Blue/Green | Streaked | White | Sport | Pale-Lavender | July into August | Falstad, C.H. | --NR-- |
| 'Hadspen Dolphin' | Giant | Blue/Green | - | - | Unknown | - | - | Unknown | --NR-- |
| 'Hadspen Harmony' | - | - | - | - | Duplicate | - | - | Duplicate Name | --NR-- |
| 'Hadspen Hawk' | Medium | Blue/Green | - | - | Unknown | Pale-Lavender | August to October | Smith, Eric & British Hosta and Hemerocallis Society | .1988 |
| 'Hadspen Hawk Streaked' | Medium | Blue/Green | Streaked | Yellow | Sport | Pale-Lavender | August to September | Unknown | --NR-- |
| 'Hadspen Heron' | Medium | Blue/Green | - | - | Unknown | Pale-Lavender | July into August | Smith, Eric & Aden, Paul | .1976 |
| 'Hadspen Honey' | - | - | - | - | Duplicate | - | - | Duplicate Name | --NR-- |
| 'Hadspen Mystique' | Large | Dark-Green | - | - | Hybrid | Med-Lavender | August to September | Smith, Eric & Ruh, Peter & Ruh, Jean | .2003 |
| 'Hadspen Nymphae' | Large | Blue/Green | - | - | Unknown | - | - | Unknown | --NR-- |
| 'Hadspen Pink' | Medium | Blue/Green | - | - | Unknown | Pale-Lavender | July into August | Smith, Eric & British Hosta and Hemerocallis Society | .1988 |
| 'Hadspen Rainbow' | Large | Med-Green | - | - | Unknown | - | - | Unknown | --NR-- |
| 'Hadspen Samphire' | Medium | Light-Green | - | - | Hybrid | Pale-Lavender | August | Smith, Eric & Ruh, Peter | .1997 |
| 'Hadspen Seersucker' | Large | Med-Green | - | - | Unknown | Med-Lavender | July | Smith, Eric | --NR-- |
| 'Hadspen White' | - | - | - | - | Duplicate | - | - | Duplicate Name | --NR-- |
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