No. | Cultivar Name | Leaf Color | Plant Size | Variegation | Var Color | Origin | Flower Color | Season | Source | Registered |
1
| 'Radiant Light' | Light-Green | Medium | | | Unknown | Unknown | Unknown | Livingston, Ron | --NR-- |
2
| 'Rainbow Glenn' | Light-Green | Medium | Streaked | White | Hybrid | Pale-Lavender | July | Kuenster, Rod | .2005 |
3
| 'Rasha-ba Saikoku Iwa' | Light-Green | Small | Streaked | Speckles | Unknown | Unknown | Unknown | Unknown | --NR-- |
4
| 'Raspberry Beauty' | Light-Green | Medium | | | Hybrid | Light-Purple | August to September | Dishon, Jim | .1999 |
5
| 'Ray of Sunshine' | Light-Green | Medium | Marginal | Yellow | Nat-Sport | Unknown | Unknown | Kuenster, Rod | --NR-- |
6
| 'Red Dragon' | Light-Green | Medium | | | Hybrid | Light-Purple | August | Livingston, Ron | --NR-- |
7
| 'Red Sails in the Sunset' | Light-Green | Small | | | Hybrid | Light-Purple | August | Van Ostrand, John | .2004 |
8
| 'Red Wing' | Light-Green | Medium | Marginal | Dark Green | Hybrid | Light-Purple | August | Benedict, Dr Ralph (Herb) & Walek, Kevin & The American Hosta Society | .2009 |
9
| 'Redfield's Mini' | Light-Green | Miniature | | | Unknown | Med-Lavender | August | Lehrer, Jonathon | --NR-- |
10
| 'Redgo' | Light-Green | Large | | | Unknown | Unknown | Unknown | Wade, Van | --NR-- |
11
| 'Regal Tot' | Light-Green | Small | | | Hybrid | Light-Purple | July to August | Zilis, Mark | .2010 |
12
| 'Reggie Rising' | Light-Green | Medium | Streaked | White | Unknown | Unknown | Unknown | Unknown | --NR-- |
13
| 'Renegade of Funk' | Light-Green | Large | | | Unknown | Unknown | Unknown | White, Jeff | --NR-- |
14
| 'Revelations' | Light-Green | Large | Marginal | Green | Sport | Light-Purple | July to August | Moore, Ernest | .1993 |
15
| 'Rhinestone Cowboy Supreme' | Light-Green | Medium | Streaked | Yellow | Sport | Pale-Lavender | July | Elslager, Ed & Schwarz, Jim | --NR-- |
16
| 'Ribbon Candy' | Light-Green | Medium | Streaked | White | Unknown | Unknown | Unknown | Minks, Eldren & Minks, Nancy & Walek, Kevin & The American Hosta Society | .2009 |
17
| 'Rich Uncle' | Light-Green | Large | | | Sport | Near-White | June | Malloy, Alex | .2002 |
18
| 'Richland Silver' | Light-Green | Medium | Marginal | White | Unknown | Unknown | Unknown | Wade, Van | --NR-- |
19
| 'Richmond Splashed' | Light-Green | Medium | Streaked | Yellow | Sport | Unknown | Unknown | Elslager, Ed | --NR-- |
20
| 'Rip Off' | Light-Green | Medium | | | Unknown | Pale-Lavender | Unknown | Benedict, Dr Ralph (Herb) | --NR-- |
21
| 'Robust Giant' | Light-Green | Large | | | Unknown | Unknown | June to July | Ruh, Peter & Ruh, Jean | .2005 |
22
| 'Rock and Beautiful Ears' | Light-Green | Large | Marginal | White | Sport | Med-Lavender | July | Wade, Van | --NR-- |
23
| 'Ron Livingston' | Light-Green | Medium | | | Unknown | Light-Purple | August | Asch, Stuart | --NR-- |
24
| 'Rosedale for Pete's Sake' | Light-Green | Small | Marginal | White | Unknown | Pale-Lavender | July | Hadrava, Jerry | .1999 |
25
| 'Rosedale Frosted Malt' | Light-Green | Medium | Streaked | White | Hybrid | Unknown | Unknown | Hadrava, Jerry | .1999 |
26
| 'Rosedale Genevieve' | Light-Green | Large | | | Hybrid | Pale-Lavender | July | Hadrava, Jerry | .1999 |
27
| 'Rosedale Golden City' | Light-Green | Large | | | Unknown | Near-White | June to July | Hadrava, Jerry | .1999 |
28
| 'Rosedale Golden Dipper' | Light-Green | Large | Marginal | White | Unknown | Unknown | Unknown | Hadrava, Jerry | .1999 |
29
| 'Rosedale Golden Star' | Light-Green | Medium | Marginal | White | Unknown | Unknown | Unknown | Hadrava, Jerry | --NR-- |
30
| 'Rosedale Golden Teapot' | Light-Green | Large | Marginal | Yellow | Hybrid | Pale-Lavender | July to August | Hadrava, Jerry | .2000 |
31
| 'Rosedale Grampa Jack' | Light-Green | Small | Medial | Yellow | Unknown | Light-Purple | July | Hadrava, Jerry | --NR-- |
32
| 'Roue de Fortune' | Light-Green | Small | | | Unknown | Unknown | Unknown | Bastille, Jocelyne | --NR-- |
33
| 'Roxsanne' | Light-Green | Large | | | Sport | Med-Lavender | July | Heemskerk, Gerardus | .2005 |
34
| 'Royal Accolade' | Light-Green | Medium | Marginal | Green | Sport | Pure-White | August | Zumbar, Wm | .1986 |
35
| 'Royal Rainbow' (Hostapedia) | Light-Green | Large | Marginal | Yellow | Unknown | Unknown | Unknown | Unknown | --NR-- |
36
| 'Royal Scepter' | Light-Green | Small | | | Sport | Med-Lavender | July | Unknown | --NR-- |
37
| 'Rubber Ducky' | Light-Green | Medium | | | Unknown | Pale-Lavender | July to August | Schwarz, Jim | .1996 |
38
| 'Ruffled Pale Face' | Light-Green | Small | | | Unknown | Unknown | July to August | Schulz, Ed | .2002 |
39
| 'Ruffles and Flourishes' | Light-Green | Small | Marginal | White | Unknown | Near-White | July | Goodwin, Randy | .2019 |
40
| 'Rusty's Blazing Sun' | Light-Green | Large | Streaked | Yellow | Unknown | Unknown | Unknown | Rouillier, Denis | --NR-- |
41
| 'Rusty's Tornado' | Light-Green | Medium | | | Unknown | Unknown | Unknown | Rouillier, Denis | --NR-- |
42
| 'Rusty's Veins' | Light-Green | Small | Streaked | Green | Unknown | Unknown | Unknown | Rouillier, Denis | --NR-- |
43
| 'Rutherford Birchard Hayes' | Light-Green | Medium | | | Unknown | Med-Lavender | Unknown | Ruh, Peter & Ruh, Jean | .2010 |
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