Plant Catalog › Solidago graminifolia (Flat-top Goldenrod) Solidago graminifolia (Flat-top Goldenrod) $0.00 Other Common Name: Grass-leaved GoldenrodBlooms: Late Summer to early FallH: 3-4' W: 1-2'Color: Yellow Shades Add To Cart Added! Other Common Name: Grass-leaved GoldenrodBlooms: Late Summer to early FallH: 3-4' W: 1-2'Color: Yellow Shades