No. | Cultivar Name | Plant Size | Leaf Color | Variegation | Var Color | Origin | Season | Source | Registered |
1
| 'Ra' | Large | Yellow | - | - | Hybrid | July into August | Balitewicz, Bob | --NR-- |
2
| 'Rachel' | Large | Dark-Green | Marginal | Yellow | Hybrid | July into August | Kuk, Bob | .2005 |
3
| 'Radio Waves' | Small | Med-Green | - | - | Hybrid | August | Johnson, Greg | .2004 |
4
| 'Rain Forest' | Large | Med-Green | - | - | Hybrid | August to October | Goodwin, Randy | .1996 |
5
| 'Rain Forest Shooting Stars' | Medium | Dark-Green | Medial | Yellow | Sport | July into August | Owens, William & Owens, Jean | .2008 |
6
| 'Rainbow' | Large | Dark-Green | Marginal | Yellow | Sport | July into August | Unknown | --NR-- |
7
| 'Rainbow Delight' | Small | Med-Green | Streaked | White | Unknown | July into August | Benedict, Dr Ralph (Herb) & Kuenster, Rod | .2010 |
8
| 'Rainbow's End' | Small | Dark-Green | Medial | Yellow | TC Sport | August to September | Hansen, Hans & Shady Oaks Nursery | .2005 |
9
| 'Rainbow's Moon' | Large | Med-Green | Marginal | Light Green | Sport | July into August | Harle, Dennis | --NR-- |
10
| 'Ralph's Legacy' | Small | Med-Green | Streaked | Speckles | Unknown | July into August | Zolock, Steve & Zolock, Sarah | .2000 |
11
| 'Rasha Maru' | Miniature | Dark-Green | | | Nat-Sport | August to September | Solberg, Robert | --NR-- |
12
| 'Raspatini' | Miniature | Med-Green | - | - | Hybrid | August | Zilis, Mark | .2009 |
13
| 'Raspberries and Cream' | Small | Med-Green | - | - | TC Sport | August | Zilis, Mark | .2004 |
14
| 'Raspberry Beauty' | Medium | Light-Green | - | - | Hybrid | August to September | Dishon, Jim | .1999 |
15
| 'Raspberry Meringue' | Small | Dark-Green | Medial | Chartreuse | TC Sport | August | Zilis, Mark | .2003 |
16
| 'Raspberry Sorbet' | Small | Dark-Green | - | - | Hybrid | August | Zilis, Mark & Lohman, Doug | .1999 |
17
| 'Raspberry Sorbet Supreme' | Small | Dark-Green | Streaked | Speckles | TC Sport | August | Schwarz, Jim | --NR-- |
18
| 'Raspberry Sundae' | Small | Dark-Green | Medial | White | Unknown | August to October | Korlipara, Harini & Gossett, Gary & Terra Nova Nurseries | --NR-- |
19
| 'Raspberry Truffle' | Small | Med-Green | Streaked | Speckles | TC Sport | August | Zilis, Mark | --NR-- |
20
| 'Ravinia' | Small | Med-Green | Marginal | White | Sport | August | Goodwin, Randy | .2013 |
21
| 'Ray of Hope' | Miniature | Med-Green | Streaked | Yellow | Sport | August | Tower, Alan & Solberg, Robert | .2005 |
22
| 'Razzmatazz' | Medium | Med-Green | Marginal | White | Hybrid | July into August | Beilstein, Doug & Beilstein, Mardy | .2013 |
23
| 'Razz'n Rick' | Large | Med-Green | Streaked | Yellow | Unknown | August to September | Schmidt, Bevie | .2009 |
24
| 'Red Alert' | Small | Med-Green | Medial | White | Hybrid | July into August | Unknown | --NR-- |
25
| 'Red Bull' | Large | Med-Green | - | - | Hybrid | July into August | Van Eechaute, Danny | .2010 |
26
| 'Red Cadet' | Medium | Dark-Green | - | - | Hybrid | August to October | Van Eechaute, Danny | .2005 |
27
| 'Red Corvette' | Medium | Med-Green | - | - | Hybrid | August to September | Moore, Jeff & Schwarz, Jim | .2015 |
28
| 'Red Dragon' | Medium | Light-Green | - | - | Hybrid | August | Livingston, Ron | --NR-- |
29
| 'Red Hex' | - | Med-Green | - | - | Unknown | August | Unknown | --NR-- |
30
| 'Red Hot Poker' | Small | Dark-Green | Marginal | White | Hybrid | August | Asch, Stuart | .2005 |
31
| 'Red Neck Heaven' | Medium | Med-Green | - | - | Hybrid | July into August | Avent, Tony | .1998 |
32
| 'Red Raven' | Small | Med-Green | - | - | Hybrid | August to September | Malloy, Alex | --NR-- |
33
| 'Red Rover' | Medium | Med-Green | - | - | Hybrid | August to September | Moore, Jeff & Schwarz, Jim | .2015 |
34
| 'Red Ryder' | Small | Med-Green | Streaked | White | Hybrid | July into August | Malloy, Alex | .2001 |
35
| 'Red Sails in the Sunset' | Small | Light-Green | - | - | Hybrid | August | Van Ostrand, John | .2004 |
36
| 'Red Sox' | Medium | Dark-Green | - | - | Hybrid | August to October | Herold, Roy & Walek, Kevin & The American Hosta Society | .2009 |
37
| 'Red Stem Green' | Medium | Med-Green | - | - | Unknown | August | Wade, Van | --NR-- |
38
| 'Red Stepper' | Medium | Med-Green | - | - | Hybrid | August | Goodwin, Randy | .1996 |
39
| 'Red Wing' | Medium | Light-Green | Marginal | Dark Green | Hybrid | August | Benedict, Dr Ralph (Herb) & Walek, Kevin & The American Hosta Society | .2009 |
40
| 'Reddish Dot' | Medium | Med-Green | - | - | Hybrid | July into August | Liu, Donghuan | .2016 |
41
| 'Reddy Eddy' | Large | Dark-Green | - | - | Unknown | August to September | Benedict, Dr Ralph (Herb) & Kuenster, Rod | .2010 |
42
| 'Redfield's Mini' | Miniature | Light-Green | | | Unknown | August | Lehrer, Jonathon | --NR-- |
43
| 'Redneck Mardi Gras' | Small | Yellow | - | - | Unknown | August to September | Duncan, Mary Jo | .2016 |
44
| 'Redolent Nosegay' | Large | Dark-Green | Marginal | Yellow | Sport | August to October | Hawes, James | .1999 |
45
| 'Regal Affair' | Small | Dark-Green | Marginal | White | Sport | July into August | Meyer, Bill | --NR-- |
46
| 'Regal Chameleon' | Large | Blue/Green | Marginal | Blue-Green | TC Sport | August | Falstad, C.H. | .2000 |
47
| 'Regal Flame' | Large | Blue/Green | - | - | Sport | July into August | Unknown | --NR-- |
48
| 'Regal Glory' (Benedict) | Large | Med-Green | Marginal | - | Hybrid | July into August | Benedict, Dr Ralph (Herb) | --NR-- |
49
| 'Regal Promenade' | Large | Blue/Green | Streaked | Yellow | Sport | August | Snyder, Ron | .1994 |
50
| 'Regal Providence' | Large | Blue/Green | Marginal | White | Sport | August | Snyder, Ron | .1994 |
51
| 'Regal Rhubarb' | Large | Med-Green | - | - | Unknown | July into August | Sellers, Van | .1983 |
52
| 'Regal Rumor' | Large | Med-Green | Streaked | White | Unknown | July into August | Laico, Michael | .2003 |
53
| 'Regal Splash' | Large | Dark-Green | Marginal | Yellow | Sport | July into August | Unknown | --NR-- |
54
| 'Regal Splendor' | Large | Blue/Green | Marginal | Creamy White | Sport | July into August | Walters Gardens | .1987 |
55
| 'Regal Tot' | Small | Light-Green | - | - | Hybrid | July into August | Zilis, Mark | .2010 |
56
| 'Regal Twist' | Medium | Blue/Green | Medial | White | Sport | July into August | Schulte, Dave & Schulte, Don | .2007 |
57
| 'Regalia' | Large | Blue/Green | - | - | Sport | July into August | Anderson, Kenneth | .1992 |
58
| 'Reginald Kaye' | Medium | Blue/Green | - | - | Unknown | August | Ruh, Peter & Ruh, Jean | .2003 |
59
| 'Rendezvous' | Medium | Blue/Green | Marginal | White | Sport | July into August | Zilis, Mark & Schwarz, Jim | .2014 |
60
| 'Resonance' | Small | Dark-Green | Marginal | Creamy White | Hybrid | August | Aden, Paul | .1976 |
61
| 'Restless Sea' | Medium | Med-Green | - | - | Hybrid | August to October | Hansen, Hans | .2006 |
62
| 'Revelations' | Large | Light-Green | Marginal | Green | Sport | July into August | Moore, Ernest | .1993 |
63
| 'Reverend Mac' | Medium | Blue/Green | - | - | Sport | July into August | Van Eechaute, Danny | .2011 |
64
| 'Reverie' | Medium | Med-Green | Medial | Creamy White | Hybrid | August | Wilkins, Dr Jim & Wilkins, Sandy | .2003 |
65
| 'Rhapsody in Blue' | Medium | Blue/Green | - | - | Hybrid | August to October | Benedict, Dr Ralph (Herb) | .1995 |
66
| 'Rhein' | Medium | Blue/Green | - | - | Unknown | August | Klose, Heinz & Ruh, Peter & Ruh, Jean | .2003 |
67
| 'Rhino' | Medium | Med-Green | Marginal | White | Sport | August to September | Goodwin, Randy | .2000 |
68
| 'Rhubarb Pie' | Medium | Med-Green | - | - | Sport | August | Johnson, Irwin | .2001 |
69
| 'Rhythm and Blues' | Small | Blue/Green | - | - | Hybrid | July into August | Johnson, Greg | .2004 |
70
| 'Ribbon Tiara' | Small | Yellow | Marginal | Green | Sport | July into August | Meyer, Bill | --NR-- |
71
| 'Richland Clear Fork Mist' | Medium | Med-Green | Marginal | Yellow | Unknown | July into August | Wade, Van | --NR-- |
72
| 'Richland Gold' | Medium | Yellow | - | - | Sport | July into August | Wade, Van | .1987 |
73
| 'Richland Gold Splash' | Medium | Yellow | Streaked | Speckles | Sport | July into August | Wade, Van & Walek, Kevin & The American Hosta Society | .2009 |
74
| 'Richland Gold's Moonlight' | Medium | Med-Green | Marginal | White | Sport | July into August | Wade, Van | .1999 |
75
| 'Richland Gold's Moonlight's Child' | Medium | Med-Green | Medial | White | Sport | July into August | Wade, Van | --NR-- |
76
| 'Richland Neat Tot' | Large | Med-Green | Streaked | White | Unknown | August | Wade, Van | --NR-- |
77
| 'Richland Reward' | Medium | Yellow | Marginal | White | TC Sport | July into August | Schulz, Ed | .2014 |
78
| 'Richland Riot' | Medium | Yellow | Marginal | Yellow | Sport | July into August | Schulz, Ed | --NR-- |
79
| 'Richland Royal Prince' | Small | Med-Green | Medial | White | Hybrid | July into August | Wade, Van | --NR-- |
80
| 'Richland Royal Purple' | Large | Med-Green | - | - | Sport | July into August | Wade, Van | .1999 |
81
| 'Right Around Morning Sunrise' | Medium | Med-Green | Streaked | Yellow | Sport | July into August | McHugh, Ed | .2009 |
82
| 'Right On' | Small | Med-Green | Medial | White | Hybrid | August | Benedict, Dr Ralph (Herb) | --NR-- |
83
| 'Righteous Rays' | Medium | Yellow | - | - | Hybrid | August | Snyder, Ron | .2003 |
84
| 'Ring Around the Moon' | Large | Blue/Green | Medial | Yellow | Sport | July into August | Johnson, Robert | .2004 |
85
| 'Ringtail' | Medium | Dark-Green | - | - | Hybrid | August to October | Terpening, Kent | .2005 |
86
| 'Ripple Effect' | Small | Med-Green | Medial | White | TC Sport | July into August | Walters Gardens & Bergeron, Amy | .2008 |
87
| 'Rippled Honey' | Large | Med-Green | - | - | Hybrid | August | Benedict, Dr Ralph (Herb) & Ruh, Peter | .2005 |
88
| 'Riptide' | Medium | Blue/Green | - | - | Hybrid | August | Sellers, Van | .1987 |
89
| 'Risa' | Small | Med-Green | - | - | Unknown | July into August | Dupre, Dirk | .2006 |
90
| 'Rise and Shine' | Large | Yellow | - | - | Hybrid | July into August | Goodwin, Randy | .2006 |
91
| 'Rising Star' | Medium | Yellow | Marginal | Pale Yellow | Sport | July into August | Mortko, Rob | .2013 |
92
| 'Rising Sun' | Large | Yellow | - | - | Hybrid | July into August | Vaughn, Kevin | .1988 |
93
| 'Ritz' | Giant | Blue/Green | - | - | Hybrid | July into August | Livingston, Ron | --NR-- |
94
| 'Ritz Glitz' | Small | Med-Green | Marginal | White | Unknown | August to September | Goodwin, Randy | .2020 |
95
| 'Road Rage' | Medium | Med-Green | - | - | Hybrid | August | Beilstein, Doug | .2018 |
96
| 'Robert's Rapier' | Medium | Dark-Green | Medial | White | Sport | July into August | Keller, Robert | .1996 |
97
| 'Robusta Variegata' | Small | Med-Green | Streaked | Yellow | Hybrid | August | Aden, Paul | --NR-- |
98
| 'Robyn Duback' | Medium | Med-Green | Marginal | Yellow | Unknown | August to September | Benedict, Dr Ralph (Herb) & Kuenster, Rod | .2010 |
99
| 'Robyn's Choice' | Medium | Blue/Green | Marginal | Yellow | Sport | July into August | Thomas, Bryan | --NR-- |
100
| 'Rock Concert' | Large | Blue/Green | Streaked | Speckles | Hybrid | July into August | Kuenster, Rod | .2009 |
101
| 'Rock Happy' | Medium | Med-Green | - | - | Hybrid | August | Ruh, Peter | .1992 |
102
| 'Rock Prince' | Small | Yellow | - | - | Unknown | August | O'Brien, John | --NR-- |
103
| 'Rocket's Red Glare' | Medium | Med-Green | - | - | Hybrid | August to September | Stegeman, Bev & Stegeman, Dave | .2012 |
104
| 'Rocknoll Blue Dwarf' | Miniature | Blue/Green | - | - | Unknown | August | Saur, B. & Ruh, Peter | .1996 |
105
| 'Rohdeifolia' | Medium | Dark-Green | Marginal | White | Unknown | August | Unknown | --NR-- |
106
| 'Roller Coaster Ride' | Small | Med-Green | Marginal | White | TC Sport | August | Zilis, Mark | .2005 |
107
| 'Romaine' | Large | Med-Green | - | - | Unknown | July into August | Schwarz, Jim & Schwarz, Karen | .2011 |
108
| 'Ron Livingston' | Medium | Light-Green | - | - | Unknown | August | Asch, Stuart | --NR-- |
109
| 'Ros Hogh' | Medium | Med-Green | - | - | Unknown | August to September | Krossa, Gus & Mr Curtis | --NR-- |
110
| 'Rosedale Alligator Tail' | Small | Med-Green | Marginal | White | Hybrid | July into August | Hadrava, Jerry | .1999 |
111
| 'Rosedale Babe' | Large | Blue/Green | - | - | Hybrid | July into August | Hadrava, Jerry | .2000 |
112
| 'Rosedale Blend Master' | Medium | Blue/Green | Streaked | Yellow | Unknown | July into August | Hadrava, Jerry | .2000 |
113
| 'Rosedale Catcher's Mitt' | Large | Blue/Green | - | - | Hybrid | July into August | Hadrava, Jerry | .2000 |
114
| 'Rosedale Gee Wilikers' | Small | Dark-Green | Marginal | Yellow | Hybrid | August | Hadrava, Jerry | .2000 |
115
| 'Rosedale Gee-whiz' | Small | Med-Green | Marginal | White | Hybrid | August | Hadrava, Jerry | .2000 |
116
| 'Rosedale Golden Teapot' | Large | Light-Green | Marginal | Yellow | Hybrid | July into August | Hadrava, Jerry | .2000 |
117
| 'Rosedale Houdini' | Medium | Med-Green | Streaked | Yellow | Hybrid | July into August | Hadrava, Jerry | .2000 |
118
| 'Rosedale Jack of Spades' | Medium | Med-Green | Streaked | Yellow | Hybrid | July into August | Hadrava, Jerry | .2000 |
119
| 'Rosedale Lion's Mane' | Small | Med-Green | Medial | White | Unknown | July into August | Hadrava, Jerry | .2000 |
120
| 'Rosedale Paddy Wagon' | Small | Dark-Green | Marginal | White | Hybrid | July into August | Hadrava, Jerry | .2000 |
121
| 'Rosedale Pie-eyed' | Small | Dark-Green | Streaked | Yellow | Hybrid | July into August | Hadrava, Jerry | .2000 |
122
| 'Rosedale Streaked Zipper' | Medium | Dark-Green | Streaked | White | Hybrid | July into August | Hadrava, Jerry | .2000 |
123
| 'Rosedale Sugar Time' | Medium | Med-Green | Marginal | White | Hybrid | August | Hadrava, Jerry | .1999 |
124
| 'Rosedale Tablespoons' | Medium | Yellow | - | - | Hybrid | July into August | Hadrava, Jerry | .2000 |
125
| 'Rosedale Tie-dyed' | Medium | Med-Green | Streaked | White | Hybrid | July into August | Hadrava, Jerry | .2000 |
126
| 'Rosemary' | Large | Med-Green | Marginal | Yellow | Hybrid | July into August | Parks, David | .2019 |
127
| 'Rosie Posie' | Large | Dark-Green | Marginal | White | Hybrid | August to September | Krul, Nancy & Belle Gardens | .1994 |
128
| 'Rossing's Pride' | Medium | Med-Green | Marginal | Blue-Green | Sport | July into August | Rossing, Richard | .1993 |
129
| 'Rostraver Heritage' | Large | Med-Green | - | - | Unknown | July into August | Zolock, Steve & Zolock, Sarah | .2009 |
130
| 'Rough Knight' | Small | Blue/Green | - | - | Hybrid | August | Beilstein, Doug & Beilstein, Mardy | .2013 |
131
| 'Rough Lemon' | Medium | Yellow | | | Hybrid | July into August | Solberg, Robert | .2022 |
132
| 'Roughrider' | Medium | Med-Green | Marginal | White | Hybrid | August to September | Graves, Butch | .2008 |
133
| 'Round About Midnight' | Medium | Blue/Green | | - | Hybrid | July into August | Dean, Don | .2019 |
134
| 'Route 66' | Large | Yellow | - | - | TC Sport | July into August | Zilis, Mark | .2005 |
135
| 'Royal Accolade' | Medium | Light-Green | Marginal | Green | Sport | August | Zumbar, Wm | .1986 |
136
| 'Royal Bells' | Medium | Dark-Green | Marginal | Yellow | Hybrid | August | Dishon, Jim | .1999 |
137
| 'Royal Charmer' | Large | Med-Green | Streaked | White | Sport | July into August | Van Eechaute, Danny | .2011 |
138
| 'Royal Crest' | Large | Med-Green | - | - | Hybrid | August to September | Hansen, Hans & Walters Gardens | .2018 |
139
| 'Royal Diadem' | Large | Med-Green | Marginal | White | Sport | August to October | Zumbar, Wm & Zilis, Mark | --NR-- |
140
| 'Royal Gold' | Large | Yellow | - | - | TC Sport | August to October | Wayside Gardens | --NR-- |
141
| 'Royal Lady' | Large | Dark-Green | - | - | Unknown | August to September | Holly, Gladys & The American Hosta Society | .1986 |
142
| 'Royal Oyster' | Medium | Med-Green | - | - | Sport | August | Summers, Alex | --NR-- |
143
| 'Royal Regal Rhubarb' | Large | Med-Green | Marginal | White | Sport | July into August | Benedict, Dr Ralph (Herb) | --NR-- |
144
| 'Royal Rhubarb' | Large | Med-Green | - | - | Hybrid | July into August | Pallone, D. & Ruh, Peter & Ruh, Jean | .2005 |
145
| 'Royal Rim' | Large | Med-Green | Marginal | White | Sport | August to October | Zumbar, Wm & Zilis, Mark | --NR-- |
146
| 'Royal Splash' | Large | Med-Green | Streaked | White | TC Sport | August | Grullemans, John J. & Wayside Gardens | --NR-- |
147
| 'Royal Standard' | Large | Med-Green | - | - | Hybrid | August to October | Grullemans, John J. & Wayside Gardens | .1986 |
148
| 'Royal Standard' - Mediovariegated | - | Med-Green | Medial | Yellow | TC Sport | August to October | Unknown | --NR-- |
149
| 'Royal Standard' - Yellow Form | Large | Yellow | - | - | TC Sport | August to October | Unknown | --NR-- |
150
| 'Royal Standard Double' | Large | Med-Green | - | - | Sport | August to September | Unknown | --NR-- |
151
| 'Royal Standard Special' | Large | Med-Green | Marginal | Yellow | TC Sport | August to October | Grullemans, John J. & Wayside Gardens | --NR-- |
152
| 'Royal Super' | Medium | Dark-Green | Streaked | Yellow | Sport | July into August | Walters Gardens & Falstad, Clarence | .2000 |
153
| 'Royal Susan' | Large | Med-Green | Streaked | White | Sport | August | Benedict, Dr Ralph (Herb) | --NR-- |
154
| 'Royal Wedding' | Medium | Med-Green | Marginal | White | TC Sport | August to September | Bergeron, Amy & Walters Gardens | .2014 |
155
| 'Roy's Pink' | Small | Med-Green | - | - | Hybrid | August | Benedict, Dr Ralph (Herb) & Walek, Kevin & The American Hosta Society | .2009 |
156
| 'RSVP' | Small | Dark-Green | Marginal | White | Unknown | August | Lysne, Rod | .2022 |
157
| 'Rubber Ducky' | Medium | Light-Green | - | - | Unknown | July into August | Schwarz, Jim | .1996 |
158
| 'Rubies and Ruffles' | Medium | Dark-Green | Marginal | White | Unknown | August to September | Goodwin, Randy | .2009 |
159
| 'Ruby' | Small | Med-Green | - | - | Hybrid | August to September | Savory, Dennis | .2013 |
160
| 'Ruby Gold' | Medium | Yellow-Gold | | - | Unknown | July into August | Kuk, Bob | --NR-- |
161
| 'Ruffed Up' | Large | Yellow | - | - | Hybrid | August to September | Carlson, Monty & Carlson, Julie | .2009 |
162
| 'Ruffled Pale Face' | Small | Light-Green | - | - | Unknown | July into August | Schulz, Ed | .2002 |
163
| 'Rufus Rider' | Medium | Dark-Green | Marginal | White | Hybrid | July into August | Livingston, Ron & The American Hosta Society | .2020 |
164
| 'Run Around' | Medium | Med-Green | - | - | Unknown | July into August | Benedict, Dr Ralph (Herb) & Kuenster, Rod | .2010 |
165
| 'Russ O'Harra' | Giant | Med-Green | - | - | Hybrid | July into August | O'Harra, Russ & Russ O'Harra Hosta Society | .1999 |
166
| 'Russian Tiara' | Small | Med-Green | Marginal | Yellow | Sport | July into August | Unknown | --NR-- |
167
| 'Rusty's Fine Line' | Large | Dark-Green | Medial | White | Sport | July into August | Rouillier, Denis | --NR-- |
168
| 'Ruth Reed Mraz' | Large | Med-Green | - | - | Unknown | July into August | Dow, Ronald & Mraz, Arthur | .2012 |
169
| 'You're So Vein' | Small | Dark-Green | - | - | Unknown | July into August | Avent, Tony | .2012 |
170
| 'You're Welcome' | Large | Med-Green | - | - | Sport | July into August | Micheletti, Tom | .2011 |
|