Cultivar NamePlant SizeOriginFlower ColorSeasonSourceRegistered
'Zager Blue'LargeUnknownPale-LavenderJulyZager, Herbert A. & Ruh, Peter.1987
'Zager's Tokudama'LargeHybridNear-WhiteJune into JulyZager, Herbert A. & Ruh, Peter & Ruh, Jean.2003
'Zeppelin'LargeHybrid-July into AugustZilis, Mark.2009
'Zero Tolerance'MediumHybrid--Lydell, Ransom--NR--
'Zita'MediumUnknownMed-Lavender-Kósa, Lehel--NR--
'Zucchini Fries'SmallHybrid--Goodenough, Rick--NR--
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