No. | Cultivar Name | Plant Size | Leaf Color | Variegation | Var Color | Origin | Season | Source | Registered |
1
| 'Rain Forest' | Large | Med-Green | | | Hybrid | August to September to October | Goodwin, Randy | .1996 |
2
| 'Rainbow's End' | Small | Dark-Green | Medial | Yellow | TC Sport | August to September | Hansen, Hans & Shady Oaks Nursery | .2005 |
3
| 'Rasha Maru' | Miniature | Dark-Green | | | Nat-Sport | August to September | Solberg, Robert | --NR-- |
4
| 'Raspberry Beauty' | Medium | Light-Green | | | Hybrid | August to September | Dishon, Jim | .1999 |
5
| 'Raspberry Parfait' | Large | Med-Green | | | Hybrid | September | Ruh, Peter | .1998 |
6
| 'Raspberry Sundae' | Small | Dark-Green | Medial | White | Unknown | August to September to October | Korlipara, Harini & Gossett, Gary & Terra Nova Nurseries | --NR-- |
7
| 'Razz'n Rick' | Large | Med-Green | Streaked | Yellow | Unknown | August to September | Schmidt, Bevie | .2009 |
8
| 'Red Cadet' | Medium | Dark-Green | | | Hybrid | August to September to October | Van Eechaute, Danny | .2005 |
9
| 'Red Corvette' | Medium | Med-Green | | | Hybrid | August to September | Moore, Jeff & Schwarz, Jim | .2015 |
10
| 'Red Legs' | Medium | Dark-Green | | | Hybrid | September | Sugita, Hajime & Ruh, Peter | .1999 |
11
| 'Red October' | Medium | Dark-Green | | | Hybrid | September to October | Herold, Roy & Walek, Kevin & The American Hosta Society | .2009 |
12
| 'Red Raven' | Small | Med-Green | | | Hybrid | August to September | Malloy, Alex | --NR-- |
13
| 'Red Rover' | Medium | Med-Green | | | Hybrid | August to September | Moore, Jeff & Schwarz, Jim | .2015 |
14
| 'Red Sox' | Medium | Dark-Green | | | Hybrid | August to September to October | Herold, Roy & Walek, Kevin & The American Hosta Society | .2009 |
15
| 'Reddy Eddy' | Large | Dark-Green | | | Unknown | August to September | Benedict, Dr Ralph (Herb) & Kuenster, Rod | .2010 |
16
| 'Redneck Mardi Gras' | Small | Yellow | | | Unknown | August to September | Duncan, Mary Jo | .2016 |
17
| 'Redolent Nosegay' | Large | Dark-Green | Marginal | Yellow | Sport | August to September to October | Hawes, James | .1999 |
18
| 'Restless Sea' | Medium | Med-Green | | | Hybrid | August to September to October | Hansen, Hans | .2006 |
19
| 'Rhapsody in Blue' | Medium | Blue/Green | | | Hybrid | August to September to October | Benedict, Dr Ralph (Herb) | .1995 |
20
| 'Rhino' | Medium | Med-Green | Marginal | White | Sport | August to September | Goodwin, Randy | .2000 |
21
| 'Ringtail' | Medium | Dark-Green | | | Hybrid | August to September to October | Terpening, Kent | .2005 |
22
| 'Ritz Glitz' | Small | Med-Green | Marginal | White | Unknown | August to September | Goodwin, Randy | .2020 |
23
| 'Robyn Duback' | Medium | Med-Green | Marginal | Yellow | Unknown | August to September | Benedict, Dr Ralph (Herb) & Kuenster, Rod | .2010 |
24
| 'Rocket's Red Glare' | Medium | Med-Green | | | Hybrid | August to September | Stegeman, Bev & Stegeman, Dave | .2012 |
25
| 'Ros Hogh' | Medium | Med-Green | | | Unknown | August to September | Krossa, Gus & Mr Curtis | --NR-- |
26
| 'Rosie Posie' | Large | Dark-Green | Marginal | White | Hybrid | August to September | Krul, Nancy & Belle Gardens | .1994 |
27
| 'Roughrider' | Medium | Med-Green | Marginal | White | Hybrid | August to September | Graves, Butch | .2008 |
28
| 'Roulette Russe' | Medium | Med-Green | | | Unknown | September | Bastille, Jocelyne | --NR-- |
29
| 'Royal Crest' | Large | Med-Green | | | Hybrid | August to September | Hansen, Hans & Walters Gardens | .2018 |
30
| 'Royal Diadem' | Large | Med-Green | Marginal | White | Sport | August to September to October | Zumbar, Wm & Zilis, Mark | --NR-- |
31
| 'Royal Gold' | Large | Yellow | | | TC Sport | August to September to October | Wayside Gardens | --NR-- |
32
| 'Royal Lady' | Large | Dark-Green | | | Unknown | August to September | Holly, Gladys & The American Hosta Society | .1986 |
33
| 'Royal Rim' | Large | Med-Green | Marginal | White | Sport | August to September to October | Zumbar, Wm & Zilis, Mark | --NR-- |
34
| 'Royal Standard' | Large | Med-Green | | | Hybrid | August to September to October | Grullemans, John J. & Wayside Gardens | .1986 |
35
| 'Royal Standard' - Mediovariegated | Unknown | Med-Green | Medial | Yellow | TC Sport | August to September to October | Unknown | --NR-- |
36
| 'Royal Standard' - Yellow Form | Large | Yellow | | | TC Sport | August to September to October | Unknown | --NR-- |
37
| 'Royal Standard Double' | Large | Med-Green | | | Sport | August to September | Unknown | --NR-- |
38
| 'Royal Standard Special' | Large | Med-Green | Marginal | Yellow | TC Sport | August to September to October | Grullemans, John J. & Wayside Gardens | --NR-- |
39
| 'Royal Wedding' | Medium | Med-Green | Marginal | White | TC Sport | August to September | Bergeron, Amy & Walters Gardens | .2014 |
40
| 'Rubies and Ruffles' | Medium | Dark-Green | Marginal | White | Unknown | August to September | Goodwin, Randy | .2009 |
41
| 'Ruby' | Small | Med-Green | | | Hybrid | August to September | Savory, Dennis | .2013 |
42
| 'Ruby Slippers' | Medium | Med-Green | | | Hybrid | September | Ward, Dr Dick & Ward, Jane | .1999 |
43
| 'Ruffed Up' | Large | Yellow | | | Hybrid | August to September | Carlson, Monty & Carlson, Julie | .2009 |
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