Prairie Dock (Silphium terebinthinaceum)
Prairie Dock (Silphium terebinthinaceum)

Prairie Dock (Silphium terebinthinaceum)

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Silphium terebinthinaceum, ½-pint plug

Exposure: Full sun – partial sun
Soil: Medium dry - medium wet
Mature Height: 9 feet
Blooms: August

Notable Features: Extremely drought-resistant and long-lived; once it is established it can be difficult to move so choose your spot wisely in a garden setting. Leaves have a wonderful sandpapery texture.

 Attracts: The composite flowers attract long-tongued bees primarily, including honeybees, bumblebees, and Miner bees. Other flower visitors include Halictine bees, bee flies, and the Ruby-throated hummingbird. Goldfinches eat the seeds, and may help to disperse them. The coarse sandpapery leaves of mature plants are not attractive to the cottontail rabbit, which prefers vegetation that is shorter and more tender.