No.Cultivar NameSourcePlant SizeLeaf ColorVariegationVar ColorOriginFlower ColorSeasonRegistered
1 'Rachel'Kuk, BobLargeDark-GreenMarginalYellowHybridDeep-PurpleJuly into August.2005
2 'Raging River'Klotz, Ruby & Klotz, B.SmallBlue/GreenMarginalWhiteUnknownNear-WhiteJune into July.2020
3 'Ragtime'Ward, Dr Dick & Ward, JaneLargeYellow--HybridPale-LavenderJune into July.2013
4 'Rainmaker'Ward, Dr Dick & Ward, JaneGiantMed-Green--Unknown-June into July.2009
5 'Rainy Day'Ward, Dr Dick & Ward, JaneMediumMed-GreenMedialWhiteHybridPale-LavenderJune into July.2014
6 'Raspberry Parfait'Ruh, PeterLargeMed-Green--HybridLight-PurpleSeptember.1998
7 'Razzle Dazzle'Kuk, BobMediumDark-Green--HybridNear-WhiteJuly.1987
8 'Razzmatazz'Beilstein, Doug & Beilstein, MardyMediumMed-GreenMarginalWhiteHybridPale-LavenderJuly into August.2013
9 'Red Cloud'Beilstein, Doug & The American Hosta SocietySmallBlue/GreenStreakedWhiteHybridPale-LavenderJuly.2020
10 'Red Stem Green'Wade, VanMediumMed-Green--UnknownDeep-PurpleAugust--NR--
11 'Red Thunder'Beilstein, Doug & Malloy, AlexMediumMed-Green--Hybrid----NR--
12 'Red Wedding'Vasey, Mike----Unknown----NR--
13 'Redgo'Wade, VanLargeLight-Green--Unknown----NR--
14 'Reid All About It'Beilstein, Doug & Beilstein, MardyLargeDark-GreenMarginalWhiteHybridPale-LavenderJuly.2020
15 'Rembrandt Blue'Moldovan, SteveLargeBlue/Green--HybridNear-WhiteJune into July.1983
16 'Rhapsody'Hatfield, Handy & Walek, KevinLargeMed-GreenMarginalWhiteSportPale-LavenderJuly.2009
17 'Richland Blue'Wade, VanLargeBlue/Green--UnknownNear-WhiteJune into July.2007
18 'Richland Charmer'Wade, VanLargeMed-GreenMedialYellowSportLight-PurpleJuly.2000
19 'Richland Clear Fork Mist'Wade, VanMediumMed-GreenMarginalYellowUnknownPale-LavenderJuly into August--NR--
20 'Richland Gold'Wade, VanMediumYellow--SportPale-LavenderJuly into August.1987
21 'Richland Gold Splash'Wade, Van & Walek, KevinMediumYellowStreakedSpecklesSportMed-LavenderJuly into August.2009
22 'Richland Golden Candy'Wade, VanMediumYellow--UnknownLight-PurpleJuly--NR--
23 'Richland Gold's Moonlight'Wade, VanMediumMed-GreenMarginalWhiteSportPale-LavenderJuly into August.1999
24 'Richland Gold's Moonlight's Child'Wade, VanMediumMed-GreenMedialWhiteSportMed-LavenderJuly into August--NR--
25 'Richland Green Edge'Wade, VanLargeBlue/GreenStreakedYellowUnknown----NR--
26 'Richland Green Splish'Wade, VanLargeDark-Green--SportLight-PurpleJuly.1999
27 'Richland Mayan Moon'Wade, VanMediumDark-GreenMarginalYellowSportPale-LavenderJuly--NR--
28 'Richland Neat Tot'Wade, VanLargeMed-GreenStreakedWhiteUnknownLight-PurpleAugust--NR--
29 'Richland Royal Prince'Wade, VanSmallMed-GreenMedialWhiteHybridLight-PurpleJuly into August--NR--
30 'Richland Royal Princess'Wade, VanLargeMed-GreenMarginalWhiteSportLight-PurpleJuly.1999
31 'Richland Royal Purple'Wade, VanLargeMed-Green--SportDeep-PurpleJuly into August.1999
32 'Richland Silver'Wade, VanMediumLight-GreenMarginalWhiteUnknown----NR--
33 'Richland Surprise'Wade, VanMediumMed-GreenMarginalCreamy WhiteSportLight-PurpleJuly.1999
34 'Richland Surprise Splash'Wade, VanMediumMed-GreenStreakedYellowSport----NR--
35 'Richland White Edge'Wade, VanMediumMed-GreenMarginalYellowUnknownLight-PurpleJuly.1999
36 'Richland Yea'Wade, VanLargeMed-Green--Unknown----NR--
37 'Richmond Blue'Zumbar, Wm & Walek, KevinLargeBlue/Green--TC SportNear-WhiteJune into July.2009
38 'Riding High'Ward, Dr Dick & Ward, JaneGiantDark-Green--Unknown-June into July.2014
39 'Rippled Green Cup'Wade, VanMediumDark-Green--Unknown----NR--
40 'Rippled Streak'Wade, VanLargeMed-GreenStreakedSpecklesUnknownMed-Lavender---NR--
41 'Rippling Waters'Wade, VanLargeMed-Green--Unknown----NR--
42 'Rising Surf'Ruh, PeterMediumMed-GreenMarginalWhiteUnknownPale-LavenderJuly--NR--
43 'River Nile'Moldovan, SteveGiantBlue/Green--HybridNear-WhiteJune into July.1983
44 'River of Gold'Ward, Dr Dick & Ward, JaneLargeYellow--UnknownPale-LavenderJune into July.2014
45 'Road Rage'Beilstein, DougMediumMed-Green--HybridDeep-PurpleAugust.2018
46 'Robust Giant'Ruh, Peter & Ruh, JeanLargeLight-Green--Unknown-June into July.2005
47 'Rock and Beautiful Ears'Wade, VanLargeLight-GreenMarginalWhiteSportMed-LavenderJuly--NR--
48 'Rock and Roll'Kuk, BobLargeBlue/Green--SportNear-WhiteJune.1999
49 'Rock Happy'Ruh, PeterMediumMed-Green--HybridMed-LavenderAugust.1992
50 'Rock of Ages'Ward, Dr Dick & Ward, JaneGiantBlue/Green--SportPure-WhiteJune into July.2009
51 'Rock Star Land'Stadden, JoshMediumBlue/Green--Hybrid----NR--
52 'Rocknoll Blue Dwarf'Saur, B. & Ruh, PeterMiniatureBlue/Green--Unknown-August.1996
53 'Rocky Fork'Ward, Dr Dick & Ward, JaneMediumBlue/Green--UnknownPale-LavenderJune into July.2003
54 'Rocky Mountain High'Kuk, BobLargeMed-GreenMarginalYellowHybridPale-LavenderJune into July.1991
55 'Roscoe'Wade, VanGiantBlue/Green--HybridNear-WhiteJune.1999
56 'Rotini'Beilstein, Doug & Zilis, MarkLargeBlue/GreenStreakedYellowHybrid-June into July.2009
57 'Rough Knight'Beilstein, Doug & Beilstein, MardySmallBlue/Green--HybridMed-LavenderAugust.2013
58 'Rough Rider'Beilstein, DougMediumBlue/Green--Unknown----NR--
59 'Roughrider'Graves, ButchMediumMed-GreenMarginalWhiteHybridPure-WhiteAugust to September.2008
60 'Rowan My Boat'Beilstein, Doug & Beilstein, MardyLargeBlue/Green--HybridMed-LavenderJune into July.2018
61 'Royal Accolade'Zumbar, WmMediumLight-GreenMarginalGreenSportPure-WhiteAugust.1986
62 'Royal Diadem'Zumbar, Wm & Zilis, MarkLargeMed-GreenMarginalWhiteSportPure-WhiteAugust to October--NR--
63 'Royal Gold'Wayside GardensLargeYellow--TC SportPure-WhiteAugust to October--NR--
64 'Royal Rhubarb'Pallone, D. & Ruh, Peter & Ruh, JeanLargeMed-Green--HybridLight-PurpleJuly into August.2005
65 'Royal Rim'Zumbar, Wm & Zilis, MarkLargeMed-GreenMarginalWhiteSportPure-WhiteAugust to October--NR--
66 'Royal Splash'Grullemans, John J. & Wayside GardensLargeMed-GreenStreakedWhiteTC SportPure-WhiteAugust--NR--
67 'Royal Standard'Grullemans, John J. & Wayside GardensLargeMed-Green--HybridPure-WhiteAugust to October.1986
68 'Royal Standard Special'Grullemans, John J. & Wayside GardensLargeMed-GreenMarginalYellowTC SportPure-WhiteAugust to October--NR--
69 'Ruby Desires'Klotz, RubyMediumDark-GreenMarginalYellowUnknown----NR--
70 'Ruby Gold'Kuk, BobMediumYellow-Gold -UnknownLight-PurpleJuly into August--NR--
71 'Ruby Slippers'Ward, Dr Dick & Ward, JaneMediumMed-Green--HybridLight-PurpleSeptember.1999
72 'Rutherford Birchard Hayes'Ruh, Peter & Ruh, JeanMediumLight-Green--UnknownMed-Lavender-.2010

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