| Cultivar Name | Plant Size | Leaf Color | Variegation | Var Color | Origin | Flower Color | Season | Source | Registered |
| 'Nakatsu' | Small | Med-Green | Marginal | White | Hybrid | - | - | Hirose, Yoshimichi | --NR-- |
| 'Nameoki' | Medium | Med-Green | - | - | Unknown | - | - | Hensen, Karel | --NR-- |
| 'Nanc' | Small | Med-Green | Streaked | White | Unknown | - | July into August | Snyder, Ron | .2003 |
| 'Napoleon' | Medium | Dark-Green | Marginal | Yellow | Sport | Light-Purple | July into August | Malloy, Alex | --NR-- |
| 'Nathan's Legacy' | Small | Light-Green | - | - | Unknown | - | July into August | Zolock, Steve & Zolock, Sarah | .2007 |
| 'Neat Splash Fleck' | Medium | Med-Green | Streaked | Speckles | Sport | Light-Purple | July into August | Powell, Loleta | --NR-- |
| 'Needlepoint' | Small | Med-Green | Streaked | Yellow | Sport | Deep-Purple | July into August | Van Eechaute, Danny | .2013 |
| 'Needle's Eye' | Small | Light-Green | Medial | Yellow | Sport | Deep-Purple | July into August | Van Eechaute, Danny | .2013 |
| 'Nemesis' | Medium | Dark-Green | Medial | Yellow | Unknown | - | July into August | Dupre, Dirk | .2010 |
| 'Neon Glory' | Large | Blue/Green | Medial | Yellow | TC Sport | Pale-Lavender | July into August | Schwarz, Jim | .2007 |
| 'Neutron Star' | Miniature | Dark-Green | - | - | Sport | Pale-Lavender | June into July | McWilliams, Robb & Philips, Hugo | .2011 |
| 'Newberry Gold' | Medium | Yellow | - | - | Hybrid | Near-White | June | Plemmons, Chuck | .1996 |
| 'Ngaire Dawn' | Large | Med-Green | - | - | Hybrid | Near-White | July into August | Gilligan, Madelon | .2013 |
| 'Nicholas James' | Medium | Yellow | - | - | Unknown | Pure-White | June | Banyai, Pauline & Elslager, Ed | .1999 |
| 'Night at the Opera' | Large | Blue/Green | Marginal | Yellow | Hybrid | Near-White | June into July | Dean, Don | .2014 |
| 'Night Flight' | Medium | Blue/Green | - | - | Hybrid | Med-Lavender | August | Dean, Don | .2015 |
| 'Night Train' | Large | Blue/Green | - | - | Unknown | - | June into July | Ward, Dr Dick & Ward, Jane | .2005 |
| 'Niki Mouse' | Miniature | Blue/Green | Medial | Yellow | Sport | Pale-Lavender | June into July | Roberts, Mark | .2015 |
| 'Nikkma' | Small | Blue/Green | - | - | Unknown | Med-Lavender | June into July | Schmidt, Jon | .2015 |
| 'Nirvana' | Medium | Med-Green | Marginal | Yellow | Unknown | - | - | Unknown | --NR-- |
| 'Nishikigawa' | Small | Med-Green | Marginal | White | Hybrid | Light-Purple | July | Hirose, Yoshimichi | --NR-- |
| 'Nooner' | Medium | Med-Green | Marginal | Yellow | Hybrid | Pale-Lavender | July | Benedict, Dr Ralph (Herb) | .1991 |
| 'Norma' | Medium | Med-Green | Marginal | Yellow | Sport | Light-Purple | July into August | Bond, Norma | --NR-- |
| 'North Point' | Medium | Blue/Green | - | - | Unknown | - | - | Lydell, Ransom | .1998 |
| 'Northern Iowa Wrestling' | Medium | Med-Green | Streaked | White | Unknown | - | June into July | Freeman, Franc | .2012 |
| 'Northern Mist Grey' | Large | Blue/Green | - | - | Sport | Near-White | June | Wade, Van | --NR-- |
| 'Northland Queen' | Large | Blue/Green | Streaked | Yellow | Hybrid | Pale-Lavender | July into August | Dean, Don | .2004 |
| 'Nuestra Señora de Atocha' | Medium | Yellow | - | - | Hybrid | Pale-Lavender | June into July | Goodwin, Randy | .2009 |
| 'Number Nine' | Medium | Blue/Green | - | - | Unknown | - | June into July | Ragus, Gerhard & Ragus, Renate | .2015 |
| 'Razz'n Rick' | Large | Med-Green | Streaked | Yellow | Unknown | - | August to September | Schmidt, Bevie | .2009 |
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