Perennial Herb of the Year 2012 is the Knotweed XL Label
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enPreferred Label of
Alternative Label of
Inflectionals
Perennial Herb of the Year 2012 is the Knotweed, knotweed, perennial herb, perennial herb of the yearSame spelling in use by the following Labels:
Perennial Herb of the Year 2015 is the Sedge, Perennial Herb of the Year 2011 is the Sedum, Perennial herb of the year 2001: Bellflower, Perennial herb of the year 2002: Aster, Perennial Herb of the Year 2003: Salvia, Perennial Herb of the Year 2004: Anemone, Perennial Herb of the Year 2006: Phlox, Perennial Herb of the Year 2008: Sneezeweed, Perennial herb of the Year 2004: The Geranium, Perennial Herb of the Year 2010 is the Catnip, Perennial Herb of the Year 2009: Plantain lily, Perennial Herb of the Year 2018 is the Daylily