| No. | Cultivar Name | Source | Plant Size | Leaf Color | Variegation | Var Color | Origin | Flower Color | Season | Registered |
|
1
| 'Radiance' | Anderson, Kenneth | Large | Yellow | - | - | Unknown | Near-White | July | .1980 |
|
2
| 'Rain Dancer' | Hansen, Hans | Large | Blue/Green | Marginal | Yellow | Sport | Pale-Lavender | June | .2007 |
|
3
| 'Rainbow's End' | Hansen, Hans & Shady Oaks Nursery | Small | Dark-Green | Medial | Yellow | TC Sport | Pale-Lavender | August to September | .2005 |
|
4
| 'Rainy Lake' | Carlson, Monty & Carlson, Julie | - | - | - | - | Unknown | - | - | --NR-- |
|
5
| 'Raucous Ruffles' | Dean, Don | Medium | Blue/Green | - | - | Hybrid | - | - | .2008 |
|
6
| 'Raven' | Savory, Robert | Medium | Dark-Green | - | - | Hybrid | Light-Purple | - | .1993 |
|
7
| 'Rays of Sunshine' | Minks, Eldren | Medium | Med-Green | Marginal | Yellow | Sport | Pale-Lavender | July | .1990 |
|
8
| 'Red One' | Westberg, Jim | Small | Dark-Green | - | - | Unknown | - | - | --NR-- |
|
9
| 'Redneck Mardi Gras' | Duncan, Mary Jo | Small | Yellow | - | - | Unknown | Deep-Purple | August to September | .2016 |
|
10
| 'Redtail' | Carlson, Monty & Carlson, Julie | Medium | Yellow | | | Unknown | Light-Purple | | --NR-- |
|
11
| 'Redwood' | Carlson, Monty & Carlson, Julie | Large | Dark-Green | Streaked | White | Unknown | Light-Purple | | --NR-- |
|
12
| 'Regal Promenade' | Snyder, Ron | Large | Blue/Green | Streaked | Yellow | Sport | Pale-Lavender | August | .1994 |
|
13
| 'Regal Providence' | Snyder, Ron | Large | Blue/Green | Marginal | White | Sport | Pale-Lavender | August | .1994 |
|
14
| 'Regal Ruffles' | Minks, Eldren | Giant | Med-Green | - | - | Hybrid | Near-White | June into July | .1980 |
|
15
| 'Regal Star' | Henjum, Paul | Large | Dark-Green | Marginal | Yellow | Unknown | - | - | --NR-- |
|
16
| 'Regal Twist' | Schulte, Dave & Schulte, Don | Medium | Blue/Green | Medial | White | Sport | Med-Lavender | July into August | .2007 |
|
17
| 'Regalia' | Anderson, Kenneth | Large | Blue/Green | - | - | Sport | Pale-Lavender | July into August | .1992 |
|
18
| 'Relentless' | Dean, Don | Medium | Yellow | | | Hybrid | Pale-Lavender | July | .2022 |
|
19
| 'Renaissance' | Minks, Eldren | Medium | Med-Green | Streaked | Speckles | Sport | Pale-Lavender | July | .1983 |
|
20
| 'Restless Sea' | Hansen, Hans | Medium | Med-Green | - | - | Hybrid | Pale-Lavender | August to October | .2006 |
|
21
| 'Rhubarb Girl' | Carlson, Monty & Carlson, Julie | Large | Blue/Green | | | Unknown | | | --NR-- |
|
22
| 'Ribbon Candy' | Minks, Eldren & Minks, Nancy & Walek, Kevin & The American Hosta Society | Medium | Light-Green | Streaked | White | Unknown | - | - | .2009 |
|
23
| 'Righteous Rays' | Snyder, Ron | Medium | Yellow | - | - | Hybrid | Med-Lavender | August | .2003 |
|
24
| 'Rim Rock' | Savory, Robert | Small | Med-Green | - | - | Hybrid | Light-Purple | July | .1982 |
|
25
| 'Rippling Rhythm' | Savory, Robert | Medium | Med-Green | - | - | Hybrid | Med-Lavender | July | .1998 |
|
26
| 'Rippling Vanilla' | Minks, Eldren | Medium | Yellow | - | - | Sport | Med-Lavender | July | --NR-- |
|
27
| 'Risky Business' | Hansen, Hans | Large | Dark-Green | Medial | White | Sport | Pale-Lavender | July | .2002 |
|
28
| 'River Dance' | Dean, Don | Medium | Blue/Green | | - | Hybrid | Pale-Lavender | July | .2020 |
|
29
| 'Riviera Sunset' | Dean, Don | Small | Med-Green | Marginal | Yellow | Hybrid | - | - | .2008 |
|
30
| 'Robb McWilliams' | McWilliams, Robb & McWilliams, Cindy | Large | Dark-Green | Marginal | White | Unknown | - | - | --NR-- |
|
31
| 'Robb's Dream' | McWilliams, Robb & Philips, Hugo | Large | Med-Green | Streaked | White | Unknown | - | June into July | .2011 |
|
32
| 'Robb's Rag' | McWilliams, Robb | Giant | Blue/Green | Streaked | White | Unknown | | | --NR-- |
|
33
| 'Rocky Road' | Savory, Robert | Large | Med-Green | - | - | Hybrid | Light-Purple | July | .1988 |
|
34
| 'Rosebud' | Savory, Dennis | Large | Med-Green | - | - | Unknown | - | July | .1992 |
|
35
| 'Rossing's Pride' | Rossing, Richard | Medium | Med-Green | Marginal | Blue-Green | Sport | Pale-Lavender | July into August | .1993 |
|
36
| 'Rotunda' | Savory, Robert | Medium | Blue/Green | - | - | Hybrid | Pale-Lavender | June | .1988 |
|
37
| 'Round About Midnight' | Dean, Don | Medium | Blue/Green | | - | Hybrid | Pale-Lavender | July into August | .2019 |
|
38
| 'Roundabout' (Savory) | Savory, Robert | Medium | Blue/Green | - | - | Hybrid | Pale-Lavender | June | .1988 |
|
39
| 'Roy Klehm' | Hansen, Hans & Shady Oaks Nursery | Large | Blue/Green | Medial | Yellow | Sport | Near-White | June into July | .2007 |
|
40
| 'Royal Flush' | Savory, Robert | Large | Blue/Green | Marginal | Yellow | Unknown | Pale-Lavender | July | .1985 |
|
41
| 'Royal Highness' | Minks, Eldren | Medium | Yellow | - | - | Unknown | - | - | --NR-- |
|
42
| 'Royalty' | Anderson, Kenneth | Medium | Yellow | - | - | Hybrid | Light-Purple | July | .1982 |
|
43
| 'Ruby' | Savory, Dennis | Small | Med-Green | - | - | Hybrid | Light-Purple | August to September | .2013 |
|
44
| 'Ruffed Up' | Carlson, Monty & Carlson, Julie | Large | Yellow | - | - | Hybrid | Pale-Lavender | August to September | .2009 |
|
45
| 'Ruffian' (Arett) | Arett, Anne | Large | Blue/Green | - | - | Unknown | - | - | --NR-- |
|
46
| 'Rumpelstiltskin' | Savory, Robert & Savory, Dennis | Medium | Dark-Green | Marginal | Light Green | Hybrid | Light-Purple | July | .1997 |
|
47
| 'Rumpled Hat' | Ruff, Doug | Giant | Dark-Green | - | - | Unknown | - | - | --NR-- |
|