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No.Cultivar NameType of OriginMother/Pod Parentx Pollen ParentSourceBackground Information
1 'Blue Mammoth'Unknown - -Aden, Paul & Ruh, Peter & Ruh, Jean(GENETIC BACKGROUND) 'Sieboldiana' ++(SIMILAR.HOSTAS) 'Eleanor J. Reath', 'Elegans', 'Gray Cole', 'Helen Doriot', 'River Nile', 'Ryan's Big One', 'Silver Anniversary', 'Trail's End', 'Woodland Blue'
2 'Eleanor J. Reath'Hybrid'Frances Williams''Elegans'Reath, David(GENETIC BACKGROUND) 'Elegans', 'Frances Williams', 'Sieboldiana', 'Tokudama' ++(SIMILAR.HOSTAS) 'Blue Mammoth', 'Elegans', 'Gray Cole', 'Helen Doriot', 'River Nile', 'Ryan's Big One', 'Silver Anniversary', 'Trail's End', 'Woodland Blue'
3 'Gray Cole'Hybrid'Sieboldiana'UnknownGray and Cole Nursery & Kuk, Bob(GENETIC BACKGROUND) 'Sieboldiana' ++(SIMILAR.HOSTAS) 'Blue Mammoth', 'Eleanor J. Reath', 'Elegans', 'Helen Doriot', 'River Nile', 'Ryan's Big One', 'Silver Anniversary', 'Trail's End', 'Woodland Blue' ++(NOTE) The Hostapedia says, "This may be the closes plant to the true H. sieboldiana 'Elegans' in existence."
4 'Helen Doriot'Hybrid'Frances Williams''Elegans'Reath, David(GENETIC BACKGROUND) 'Elegans', 'Frances Williams', 'Sieboldiana', 'Tokudama' ++(TYPE) 'Elegans' ++(SIMILAR.HOSTAS) 'Clarence', 'Quilted Skies', 'Rembrandt Blue', 'Roundhouse Blues', 'Blue Mammoth', 'Eleanor J. Reath', 'Helen Doriot', 'River Nile', 'Ryan's Big One', 'Silver Anniversary', 'Trail's End', 'Woodland Blue'
5 'Powder Blue'Unknown - -Sugita, Hajime & Ruh, Peter(TYPE) 'Sieboldiana' ++(SIMILAR.HOSTAS) 'Eleanor J. Reath'
6 'River Nile'Hybrid'Golden Circles' sport'Golden Circles' sportMoldovan, Steve(GENETIC BACKGROUND) 'Elegans', 'Frances Williams', 'Golden Circles', 'Sieboldiana' ++(SIMILAR.HOSTAS) 'Blue Mammoth', 'Eleanor J. Reath', 'Elegans', 'Gray Cole', 'Helen Doriot', 'Ryan's Big One', 'Silver Anniversary', 'Trail's End', 'Woodland Blue'
7 'Ryan's Big One'Hybrid'Elegans''Elegans'Englerth, Lawrence & Ryan (Unknown)(GENETIC BACKGROUND) 'Elegans', 'Sieboldiana', 'Tokudama' ++(SIMILAR.HOSTAS) 'Blue Mammoth', 'Eleanor J. Reath', 'Elegans', 'Gray Cole', 'Helen Doriot', 'River Nile', 'Ryan's Big One', 'Silver Anniversary', 'Trail's End', 'Woodland Blue'
8 'Silver Anniversary'Unknown - -O'Harra, Russ(GENETIC BACKGROUND) 'Sieboldiana' ++(TYPE) 'Sieboldiana' ++(SIMILAR.HOSTAS) 'Komodo Dragon', 'Blue Mammoth', 'Eleanor J. Reath', 'Elegans', 'Gray Cole', 'Helen Doriot', 'River Nile', 'Ryan's Big One', 'Trail's End', 'Woodland Blue'
9 'Trail's End'Unknown - -Ruh, Peter(TYPE) 'Elegans' ++(SIMILAR.HOSTAS) 'Blue Mammoth', 'Eleanor J. Reath', 'Elegans', 'Gray Cole', 'Helen Doriot', 'River Nile', 'Ryan's Big One', 'Silver Anniversary', 'Trail's End', 'Woodland Blue'
10 'Woodland Blue'Hybrid'Sieboldiana'UnknownSimpers, Lucille & Ruh, Peter(GENETIC BACKGROUND) 'Sieboldiana' ++(SIMILAR.HOSTAS) 'Blue Mammoth', 'Eleanor J. Reath', 'Elegans', 'Gray Cole', 'Helen Doriot', 'River Nile', 'Ryan's Big One', 'Silver Anniversary', 'Trail's End'
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