| Cultivar Name | Plant Size | Leaf Color | Variegation | Var Color | Origin | Flower Color | Season | Source | Registered |
| 'A Dog of Flanders' | Medium | Med-Green | - | - | Hybrid | - | - | Philips, Hugo | .2010 |
| 'A Many-splendored Thing' | Medium | Dark-Green | Marginal | Creamy White | Hybrid | Pale-Lavender | June into July | Elslager, Ed | .1999 |
| 'Abraham Lincoln' | Medium | Blue/Green | - | - | Hybrid | Light-Purple | June into July | Beilstein, Doug & Zilis, Mark | .2009 |
| 'Academy Dimholt' | Medium | Med-Green | - | - | Hybrid | Pale-Lavender | August | Chamberlain, Steve | .2005 |
| 'Academy Fangorn Forest' | Large | Med-Green | - | - | Hybrid | Light-Purple | August to September | Chamberlain, Steve | .2003 |
| 'Academy Galadriel' | Medium | Yellow | - | - | Hybrid | Med-Lavender | August to September | Chamberlain, Steve | .2000 |
| 'Academy Isengard' | Large | Med-Green | - | - | Hybrid | Light-Purple | July into September | Chamberlain, Steve | .2003 |
| 'Academy Kakistocracy' | Medium | Blue/Green | Marginal | Green | Hybrid | Near-White | June into July | Chamberlain, Steve | .2005 |
| 'Academy Lothlórien' | Large | Yellow | - | - | Hybrid | Pale-Lavender | July into August | Chamberlain, Steve | .2004 |
| 'Academy Mallorn' | Large | Med-Green | - | - | Hybrid | Pale-Lavender | July into August | Chamberlain, Steve | .2003 |
| 'Academy Mirkwood' | Medium | Med-Green | - | - | Hybrid | Light-Purple | August | Chamberlain, Steve | .2003 |
| 'Academy Nazgul' | Medium | Med-Green | - | - | Hybrid | Pale-Lavender | August | Chamberlain, Steve | .2003 |
| 'Academy Palantir' | Large | Med-Green | - | - | Hybrid | Pale-Lavender | July into August | Chamberlain, Steve | .2003 |
| 'Academy Rivendell' | Large | Med-Green | - | - | Hybrid | Med-Lavender | July into August | Chamberlain, Steve | .2005 |
| 'Advocate' | Small | Med-Green | Streaked | - | Hybrid | - | - | Malloy, Alex | --NR-- |
| 'After Midnight' | Large | Blue/Green | Marginal | Yellow | Sport | Pale-Lavender | June into July | Solberg, Robert | .2009 |
| 'Ain't Misbehavin' | Medium | Med-Green | - | - | Hybrid | Med-Lavender | August to October | Dalton, Jim & Dalton, Meg | .2012 |
| 'Aladdin' | Small | Med-Green | Marginal | White | Hybrid | - | - | Beilstein, Doug | --NR-- |
| 'Aladdin's Lamp' | Medium | Light-Green | - | - | Unknown | Pale-Lavender | July | Ward, Dr Dick & Ward, Jane | .1996 |
| 'Alice In Wonderland' | Medium | Yellow | Marginal | Green | Hybrid | Pale-Lavender | June into July | Malloy, Alex | .2001 |
| 'All That Jazz' | Large | Dark-Green | Marginal | White | Hybrid | Pure-White | July into August | Petryszyn, Olga | .2006 |
| 'American Hero' | Medium | Dark-Green | Medial | White | TC Sport | Pale-Lavender | June into July | Bergeron, Amy & Walters Gardens | .2009 |
| 'American Pie' | Small | Light-Green | Marginal | Yellow | Hybrid | Med-Lavender | June into July | Avent, Tony | .2007 |
| 'Angelica' | - | Med-Green | Medial | Yellow | Unknown | - | - | Unknown | --NR-- |
| 'Angelique' | Medium | Med-Green | Marginal | Yellow | Unknown | - | - | Zumbar, Wm | --NR-- |
| 'Animal Crackers' | Small | Med-Green | - | - | Unknown | Med-Lavender | - | Malloy, Alex | --NR-- |
| 'Anna Karenina' | - | - | - | - | Hybrid | - | - | Moore, Jeff | --NR-- |
| 'Annie' | Small | Dark-Green | Marginal | Yellow | Unknown | - | July | Kulpa, John & Walek, Kevin & The American Hosta Society | .2009 |
| 'Apparition' | Small | Med-Green | - | - | Sport | Pale-Lavender | July | Roston, Brian | --NR-- |
| 'Ariel' | Medium | Dark-Green | - | - | Hybrid | Pure-White | - | Syre-Herz, Ursula | --NR-- |
| 'Avalanche' | Medium | Med-Green | Marginal | Creamy White | Unknown | Near-White | July into August | Goodwin, Randy | .2000 |
| 'Avalon' | Small | Med-Green | Marginal | White | Sport | - | - | Malloy, Alex | --NR-- |
| 'Avalon Wild One' | Medium | Yellow | Marginal | Yellow | Unknown | - | - | Ricketts, Dennis | --NR-- |
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