| Cultivar Name | Plant Size | Leaf Color | Variegation | Var Color | Origin | Flower Color | Season | Source | Registered |
| 'A Step Beyond' | Large | Blue/Green | Marginal | Yellow | Sport | Pale-Lavender | July | Lysne, Rod | .2019 |
| 'Abba Dabba Do' | Large | Dark-Green | Marginal | Greenish White | Sport | Pale-Lavender | July into August | Avent, Tony | .1998 |
| 'Abiqua Recluse' | Large | Yellow | - | - | Hybrid | Near-White | June into July | Purtymun, Charles | .1989 |
| 'Abiqua Trumpet' | Small | Blue/Green | - | - | Unknown | Pale-Lavender | July into August | Purtymun, Charles | .1987 |
| 'Aphrodite' | Large | Med-Green | - | - | Sport | Pure-White | August to October | Maekawa, Dr Fumio & Schmid, W. George & Walek, Kevin | .2009 |
| 'Apostle' | Medium | Med-Green | | - | Hybrid | Deep-Purple | July into August | Ragus, Gerhard & Ragus, Renate | .2020 |
| 'Aquarius' | Medium | Light-Green | - | - | Hybrid | Med-Lavender | July | Husemann, Jim | .2009 |
| 'August Moon' | Large | Yellow | - | - | Hybrid | Pale-Lavender | July into August | Langfelder, Richard & Ruh, Peter | .1996 |
| 'Aurore Boréale' | Small | Light-Green | - | - | Unknown | Near-White | June into July | Bastille, Jocelyne | --NR-- |
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