| Cultivar Name | Plant Size | Leaf Color | Variegation | Var Color | Origin | Flower Color | Season | Source | Registered |
| 'Naked Lady' | Medium | Med-Green | Marginal | White | TC Sport | Med-Lavender | July | Anderson, Jim | --NR-- |
| 'Nancy, National Hero' | Medium | Yellow | | | Hybrid | Near-White | June into July | Kwick, Charles | .2021 |
| 'Nate the Great' | Large | Dark-Green | - | - | Hybrid | Pale-Lavender | July into August | Solberg, Robert | .2003 |
| 'Neat and Tidy' | Large | Blue/Green | - | - | Hybrid | Pale-Lavender | July | Simpers, Lucille | .1980 |
| 'Nifty Fifty' | Large | Dark-Green | Marginal | Yellow | Sport | Near-White | June | Benedict, Dr Ralph (Herb) | .1986 |
| 'Niki Mouse' | Miniature | Blue/Green | Medial | Yellow | Sport | Pale-Lavender | June into July | Roberts, Mark | .2015 |
| 'Nikitude' | Large | Blue/Green | Medial | Yellow | Hybrid | Pale-Lavender | - | Sisson, Kathie | --NR-- |
| 'Nine Nine Nine' | Large | Dark-Green | - | - | Unknown | - | August to September | Freeman, Franc | .2012 |
| 'Nippers' | Medium | Dark-Green | - | - | Hybrid | Pale-Lavender | July | Goodenough, Rick | .2006 |
| 'No Frills' | Medium | Blue/Green | - | - | Hybrid | Near-White | July | Simpers, Lucille & Ruh, Peter | .1991 |
| 'No Use Crying' | Large | Blue/Green | - | - | Unknown | Near-White | - | O'Brien, John | --NR-- |
| 'Noble Nirvana' | - | Med-Green | - | - | Hybrid | - | - | Unknown | --NR-- |
| 'Nooks and Crannies' | Large | Med-Green | - | - | Unknown | Pure-White | July | Sawyer, Rick | --NR-- |
| 'Nooner' | Medium | Med-Green | Marginal | Yellow | Hybrid | Pale-Lavender | July | Benedict, Dr Ralph (Herb) | .1991 |
| 'Not So' | Medium | Dark-Green | Medial | Yellow | Sport | Pale-Lavender | June into July | Purtymun, Charles & Walek, Kevin | .2009 |
| 'Nuestra Señora de Atocha' | Medium | Yellow | - | - | Hybrid | Pale-Lavender | June into July | Goodwin, Randy | .2009 |
| 'Nuki Girl' | Large | Blue/Green | - | - | Unknown | - | July into August | Schmidt, Bevie | .2009 |
| 'Number One' | Large | Blue/Green | - | - | Hybrid | Pale-Lavender | June into July | Lighty, Richard | .1987 |
| 'Nutty Husband' | Large | Blue/Green | Marginal | White | Sport | Near-White | June into July | Centerton Nursery | --NR-- |
| 'NYPD Blue' | Large | Blue/Green | Marginal | Yellow | Hybrid | Pale-Lavender | July into August | Elslager, Ed | .2004 |
| 'Razz'n Rick' | Large | Med-Green | Streaked | Yellow | Unknown | - | August to September | Schmidt, Bevie | .2009 |
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