Frost hardy perennials are tough plants that can withstand the winter cold and return year after year with a fantastic ...
Yarrow is a hardy perennial that produces clusters of small, flat-topped flowers in shades of yellow, white, pink, and red.
Short lived perennial adapted to southern Canada, northern US states, and higher elevations in the western US. Prefers cool and moist habitats. It tolerates acid, alkaline, low fertility and poorly ...