Silphium terebinthinaceum
Prairie Dock
DESCRIPTION
Prairie DockSilphium terebinthinaceum
Sspade shaped leaves form a huge basal rosette. These leaves have a rough, cat's tongue texture and they give rise to massive, up to 10' tall flower stalks from July through September sporting bright yellow 3" daisy flowers that attract butterflies and hummingbirds. Birds love their fall seed.
BENEFITS
Attracts butterflies and hummingbirdsBirds devour the seeds in late summer and fall
Tall plant, great for adding height to a rain garden
Rabbits don't like the sandpaper like leaves
Although it likes moist soil it is drought tolerant
NATIVE INFO
Native Range
Prairies and glades from Ohio to Minnesota, south to Georgia and Mississippi
Interesting Facts
In order to survive drought on the prairie, Prairie Dock stores water in its huge, fleshy taproot making it possible to thrive in the hot summer heat while other plants flag. This huge taproot makes it nearly impossible to move once established.
GROWING TIPS
Prefers average, medium, well-drained soils in full sun. Tolerates poor soils and generally not bothered by pests or disease. Can be slow-to-establish so, have patience. Usually does not need support, but may lean.