| No. | Cultivar Name | Leaf Color | Variegation | Var Color | Origin | Flower Color | Season | Source | Registered |
|
1
| 'Nagaeto' | Light-Green | | | Unknown | Light-Purple | Unknown | Ruh, Peter & Ruh, Jean | .2010 .2018 |
|
2
| 'Nagasu' | Light-Green | | | Unknown | Unknown | Unknown | Fukatsu, Shinya | --NR-- |
|
3
| 'Nameoki' | Med-Green | | | Unknown | Unknown | Unknown | Hensen, Karel | --NR-- |
|
4
| 'Nancy Gill' | Dark-Green | | | Hybrid | Pale-Lavender | August | Vaughn, Kevin & Walek, Kevin & The American Hosta Society | .2009 |
|
5
| 'Nashty Business' | Med-Green | | | Unknown | Med-Lavender | Unknown | Nash, Bill | --NR-- |
|
6
| 'Nate the Great' | Dark-Green | | | Hybrid | Pale-Lavender | July to August | Solberg, Robert | .2003 |
|
7
| 'National Velvet' | Dark-Green | | | Sport | Med-Lavender | August | Kuk, Bob | .1990 |
|
8
| 'Nature Green' | Med-Green | | | Unknown | Pale-Lavender | June to July | Qu, Yanting | .2020 |
|
9
| 'Niagara Falls' | Med-Green | | | Hybrid | Pale-Lavender | July | Brincka, Wm & Petryszyn, 0lga | .1991 |
|
10
| 'Niagara on the Lake' | Med-Green | Streaked | Yellow | Sport | Near-White | July to August | Cumpson, J. Bruce | .2003 |
|
11
| 'Nikkma' | Blue/Green | | | Unknown | Med-Lavender | June to July | Schmidt, Jon | .2015 |
|
12
| 'Nonsuch' | Blue/Green | | | Unknown | Unknown | June to July | Grenfell, Diana | .1996 |
|
13
| 'Nooks and Crannies' | Med-Green | | | Unknown | Pure-White | July | Sawyer, Rick | --NR-- |
|
14
| 'Norma's Afternoon' | Dark-Green | | | Unknown | Pale-Lavender | July to August | Hicks, Gerry & Starr, R. | .2019 |
|
15
| 'Northern Iowa Wrestling' | Med-Green | Streaked | White | Unknown | Unknown | June to July | Freeman, Franc | .2012 |
|
16
| 'Now' | Dark-Green | Medial | Yellow | Unknown | Unknown | Unknown | Benedict, Dr Ralph (Herb) & Kuenster, Rod | .2010 |
|
17
| 'Nuki Girl' | Blue/Green | | | Unknown | Unknown | July to August | Schmidt, Bevie | .2009 |
|
18
| 'Number Nine' | Blue/Green | | | Unknown | Unknown | June to July | Ragus, Gerhard & Ragus, Renate | .2015 |
|
19
| 'Razz'n Rick' | Med-Green | Streaked | Yellow | Unknown | Unknown | August to September | Schmidt, Bevie | .2009 |
|