AHS convention plants:
- 1991 in Raleigh, NC, 'Raleigh Remembrance'
- 1992 in Columbus, OH,
- 1993 in Cedar Rapids, IA
- 1994 in Atlanta, GA,
- 1995 in Falls Church, VA, 'Potomac Pride'
- 1996 in Portland, OR,
- 1997 in Indianapolis, IN, 'Hoosier Homecoming'
- 1998 in Peoria, IL, 'Prairieland Memories'
- 1999 in Ann Arbor, MI, 'Encore'
- 2000 in Minneapolis, MN, 'Blue Chip'
- 2001 in Raleigh, NC, 'Carolina Sunshine' ('Party Favor' supplied to convention-goers by Green Hill Farm)
- 2002 in Spokane, WA, 'Northwest Textures'
- 2003 in Falls Church, VA, 'Fallen Angel'
- 2004 in Des Moines, IA, 'Shady Affair'
- 2005 in Cleveland, OH, 'Miki'
- 2006 in Philadelphia, PA, 'Designer Genes'
- 2007 in Indianapolis, IN, 'Indy Finish Line', 'Indy Parade Lap', and 'Indy Winner's Circle'
- 2008 in St. Louis, MO, 'Spirit of St. Louis'
- 2009 in Lansing, MI, 'Amazing Grace'
- 2010 in Minneapolis, MN, various hostas
- 2011 in Marlborough, MA, 'Mayflower Moon'
- 2012 in Nashville, TN, 'Delona's Smile'
- 2013 in Milwaukee, WI,
MRHS convention plants:
- 2002 in Madison, WI, 'Ice Age Trail'
- 2003 in
- 2004 in Dubuque, IA, 'Great River Sonata' (= 'Sagae')
- 2005 in Springfield, MO, 'Ozark Welcome'
- 2006 in Milwaukee, WI, 'Rootin Tootin'
- 2007 in Davenport, IA, 'Bix Blues'
- 2008 in Schaumburg, IL, 'Chi-Town Classic'
- 2009 in Champaign, IL, 'Prairie Sum Shine'
- 2010 in Des Moines, IA, 'American Gothic'
- 2011 in Madison, WI, 'Dragon of the Seas'
- 2012 in Rochester, MN, 'Candy Kisses'
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