| Cultivar Name | Source | Plant Size | Leaf Color | Variegation | Var Color | Origin | Flower Color | Season | Registered |
| 'Ada Robinson' | Goodwin, Randy | Medium | Dark-Green | Marginal | White | Unknown | Near-White | June into July | .2018 |
| 'All Aflutter' (Stegeman) | Stegeman, Bev & Dave | Large | Dark-Green | Streaked | White | Unknown | Med-Lavender | - | --NR-- |
| 'All That Jazz' | Petryszyn, Olga | Large | Dark-Green | Marginal | White | Hybrid | Pure-White | July into August | .2006 |
| 'Always and Forever' | Goodwin, Randy | Medium | Dark-Green | Marginal | White | Unknown | Near-White | June into July | .2017 |
| 'American Idol' | Goodwin, Randy | Medium | Med-Green | Marginal | Yellow | Sport | Pale-Lavender | August | .2005 |
| 'American Royalty' | Goodwin, Randy | Medium | Med-Green | Medial | White | Unknown | - | - | --NR-- |
| 'Amo Rural and Urban' | Goodwin, Randy | Medium | Med-Green | Marginal | White | Unknown | - | - | --NR-- |
| 'Amos' | Petryszyn, Olga | Large | Blue/Green | - | - | Unknown | Near-White | June into July | --NR-- |
| 'An Arrow for Easton' | Goodwin, Randy | Miniature | Med-Green | Marginal | White | Unknown | - | - | .2014 |
| 'Andy' | Goodwin, Randy | Medium | Blue/Green | - | - | Unknown | - | - | --NR-- |
| 'Aracus' | Goodwin, Randy | Small | Dark-Green | - | - | Hybrid | Light-Purple | July | .2009 |
| 'Athletic Event' | Nyikos, Frank | Medium | Med-Green | Marginal | White | Sport | - | July into August | .2008 |
| 'Auntie Anne' | Balitewicz, Bob | Giant | Yellow | - | - | Hybrid | Pale-Lavender | June into July | --NR-- |
| 'Auntie Lucille' | Skaggs, Virginia & Brian | Large | Light-Green | - | - | Unknown | - | - | --NR-- |
| 'Autumn Ridge' | Goodwin, Randy | Medium | Med-Green | Marginal | White | Unknown | - | - | --NR-- |
| 'Avalanche' | Goodwin, Randy | Medium | Med-Green | Marginal | Creamy White | Unknown | Near-White | July into August | .2000 |
| 'Awakening Angel' | Nyikos, Frank | Medium | Blue/Green | - | - | Hybrid | Light-Purple | July into August | .2005 |
| 'Aye Tea Oh' | Goodwin, Randy | Small | Yellow | - | - | Unknown | - | - | --NR-- |
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