Compass Plant - AR Ozark Ecotype (Silphium laciniatum)
Silphium laciniatum, with a common name of Compass Plant, is a 3' to 8' tall summer flowering wildflower. It is a native perennial growing in full sun or part shade and does well in dry to moist soil moisture sites. In suitable habitat the tap root of this plant will reach 9' to 12' deep, thus its ability to tolerate drought. Livestock will graze this plant to extinction if given the opportunity. Compass plant seeds are relished by game birds and song birds and the plant attracts butterflies and a host of other pollinators. The primary leaves are extremely large and deeply lobed from the base of the plant. This ecotype is made possible in partnership with Audubon Delta. Prices listed are based on pure live seed weight, not bulk weight. You are only paying for viable seed.
Species Details
Common Name (Botanical Name) | Compass Plant - AR Ozark Ecotype (Silphium laciniatum) |
Alternatative Common Names |
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Botanical Synonyms |
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Bloom Season | Summer-Fall |
Group | Wildflowers/Forbs |
Bloom Color | Yellow |
Duration | Perennial |
Soil moisture | Dry (Xeric);Medium (Mesic) |
Soil texture | Coarse (Sand);Medium (Silt/Loam);Fine (Clay) |
Sun Exposure | Full Sun;Part Shade |
Status | Native |
Wetland status | |
pH | Acidic;Neutral;Alkaline |
pH Values | |
Average height | 6+ ft |
USDA Zones | 4a;4b;5a;5b;6a;6b;7a;7b;8a;8b; |
RNS Region | 1;2 |
Planting rate/Acre | Not Recommended |
Seeds Per Lb. | 10500 |
Seeds Per Oz | 656 |
Seeds Per Packet | 75 |
Product Benefits | Aesthetic Value;Wildlife Food;Nectar Source; |