Ratibida pinnata
Pinnate Prairie Coneflower
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Pinnate Prairie Coneflower (Ratibida pinnata) - Description
Ratibida pinnata is a species of flowering plant in the aster family known by the common names pinnate prairie coneflower, gray-head coneflower, yellow coneflower, and prairie coneflower. It is native to the central and eastern United States and Ontario in Canada. This species is a perennial herb which can well exceed one meter in height.
Pinnate Prairie Coneflower (Ratibida pinnata) - Blooming
Blooms daisy-like flowerheads with showy cone-shaped or spherical centers composed of brown disk florets.
Pinnate Prairie Coneflower (Ratibida pinnata) - Growth
Biennials and perennials with woody-based crowns. Does best with full sun exposure. Works well in a sunny border, wildflower meadow, or gravel garden. The flowerheads are suitable for cutting.
Pinnate Prairie Coneflower (Ratibida pinnata) - Planting
Propagate from the seed in early spring. Sow seeds in containers in a cold frame. Cold frames are protective structures, located outside for propagating and growing plants. Conduct division of perennials, in spring when the plants are young. The roots tend to become woody as they age. Division entails propagating a plant by splitting it into 2 or more parts. Each part has its own root system and more than one shoot or dormant bud.
Pinnate Prairie Coneflower (Ratibida pinnata) - Pest
Some occasional problems include downy mildew, powdery mildew, fungal spots, and leaf smut.
Pinnate Prairie Coneflower (Ratibida pinnata) - Interesting facts
There are only 5 or 6 known species of Ratibida, native to the prairies of North America and Mexico.
Pinnate Prairie Coneflower (Ratibida pinnata) - Soil and irrigation
Grows best in dry soil with medium fertility, neutral to slightly alkaline, and good drainage. Ratibida is drought resistant.
