| No. | Cultivar Name | Plant Size | Leaf Color | Variegation | Var Color | Origin | Flower Color | Season | Source | Registered |
|
1
| 'Rain Forest Shooting Stars' | Medium | Dark-Green | Medial | Yellow | Sport | Med-Lavender | July into August | Owens, William & Owens, Jean | .2008 |
|
2
| 'Rainforest Shooting Stars' | Medium | Dark-Green | | - | Sport | Near-White | July | Owens, William & Owens, Jean | --NR-- |
|
3
| 'Rare Breed' | Medium | Med-Green | Medial | White | Hybrid | Near-White | June into July | Livingston, Ron & The American Hosta Society | .2019 |
|
4
| 'Raspberry Parfait' | Large | Med-Green | | - | Hybrid | Light-Purple | September | Ruh, Peter | .1998 |
|
5
| 'Red, White and Blue' | - | - | | - | Duplicate | - | - | Duplicate Name | --NR-- |
|
6
| 'Redbud' | Medium | Med-Green | | - | Hybrid | Med-Lavender | June into July | Hicks, Gerry | .2017 |
|
7
| 'Reddish Dot' | Medium | Med-Green | | - | Hybrid | Deep-Purple | July into August | Liu, Donghuan | .2016 |
|
8
| 'Refiners Fire' | Large | Med-Green | Medial | Yellow | Hybrid | Pale-Lavender | July | Lysne, Rod | .2019 |
|
9
| 'Reptilian' | Large | Dark-Green | | - | Unknown | Near-White | June into July | Sawyer, Rick & The American Hosta Society | .2019 |
|
10
| 'Rhapsody in Blue' | Medium | Blue/Green | | - | Hybrid | Med-Lavender | August to October | Benedict, Dr Ralph (Herb) | .1995 |
|
11
| 'Right Around Morning Sunrise' | Medium | Med-Green | Streaked | Yellow | Sport | Pale-Lavender | July into August | McHugh, Ed | .2009 |
|
12
| 'Rimmed Cauldron' | Medium | Blue/Green | Marginal | Yellow | Hybrid | Pale-Lavender | June into July | Dye, Kay | .2020 |
|
13
| 'Risa' | Small | Med-Green | | - | Unknown | Med-Lavender | July into August | Dupre, Dirk | .2006 |
|
14
| 'Robust Giant' | Large | Light-Green | | - | Unknown | - | June into July | Ruh, Peter & Ruh, Jean | .2005 |
|
15
| 'Robyn Duback' | Medium | Med-Green | Marginal | Yellow | Unknown | Med-Lavender | August to September | Benedict, Dr Ralph (Herb) & Kuenster, Rod | .2010 |
|
16
| 'Rock Concert' | Large | Blue/Green | Streaked | Speckles | Hybrid | Med-Lavender | July into August | Kuenster, Rod | .2009 |
|
17
| 'Rocket City' | Small | Yellow | | - | Unknown | - | - | Goodwin, Randy | .2014 |
|
18
| 'Rocknoll Blue Dwarf' | Miniature | Blue/Green | | - | Unknown | - | August | Saur, B. & Ruh, Peter | .1996 |
|
19
| 'Rosaleen' | Small | Dark-Green | Marginal | White | Hybrid | Light-Purple | June into July | Gilligan, Madelon | .2017 |
|
20
| 'Rostraver Heritage' | Large | Med-Green | | - | Unknown | Near-White | July into August | Zolock, Steve & Zolock, Sarah | .2009 |
|
21
| 'Roughrider' | Medium | Med-Green | Marginal | White | Hybrid | Pure-White | August to September | Graves, Butch | .2008 |
|
22
| 'Roulette Russe' | Medium | Med-Green | | - | Unknown | Pale-Lavender | September | Bastille, Jocelyne | --NR-- |
|
23
| 'Rubies and Ruffles' | Medium | Dark-Green | Marginal | White | Unknown | Med-Lavender | August to September | Goodwin, Randy | .2009 |
|
24
| 'Ruffles and Flourishes' | Small | Light-Green | Marginal | White | Unknown | Near-White | July | Goodwin, Randy | .2019 |
|
25
| 'Ruth Reed Mraz' | Large | Med-Green | | - | Unknown | Near-White | July into August | Dow, Ronald & Mraz, Arthur | .2012 |
|
26
| 'Rutherford Birchard Hayes' | Medium | Light-Green | | - | Unknown | Med-Lavender | - | Ruh, Peter & Ruh, Jean | .2010 |
|