Best Plants for Rooftop Gardens
By: Team Ifairer | Posted: 29-08-2014
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Fanal AstilbeGreat for shadier spots on a rooftop, Astilbe 'Fanal' rewards gardeners with rich crimson color that blooms midsummer (typically July). A good perennial plant for the middle of the border, astilbe shoots up stalks of about a foot and a half and is hardy in Zones 3-8. It does best in moist soil; don't allow astilbe to dry out.