Cultivar NameSourcePlant SizeLeaf ColorVariegationVar ColorOriginFlower ColorSeasonRegistered
'Radioaktive'Jentsch, Klaus----Unknown----NR--
'Reginald Kaye'Ruh, Peter & JeanMediumBlue/Green--UnknownNear-WhiteAugust.2003
'Reuth'Unknown----Unknown----NR--
'Rhein'Klose, Heinz & Ruh, Peter & JeanMediumBlue/Green--UnknownPale-LavenderAugust.2003
'Rheingold'Kohlein, FritzMediumYellowMarginalGreenUnknown----NR--
'Rhubarb Dream'Jentsch, Klaus----Unknown----NR--
'Rosy'Klose, HeinzMediumBlue/Green--Unknown----NR--
'Rumpelstilzchen'Kohlein, FritzSmallMed-Green--Unknown----NR--

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