Compass Plant

Silphium laciniatum

Compass Plant is an iconic prairie flower, named for its remarkably large basal leaves that often orient themselves in a north-south direction. Slow growing and very long-lived, mature plants produce numerous large yellow flowers that open …

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In stock
SKU
38440-03 / 18440
Plants 3" Pots
1-4 $6.99 ea.
5-10 $5.99 ea.
11-31 $4.99 ea.
32+ $3.99 ea.
Seeds 650 seeds/oz
1/4 Oz $12.00
1/2 Oz $18.00
Oz $30.00
Lb $450.00
Cultural Details
Soil Type Clay, Loam, Sand
Soil Moisture Dry, Medium
Sun Exposure Full Sun
Height 5' - 10'
Bloom Color Yellow
Bloom Time July, Aug, Sep
Spacing 2'
Zones 4, 5, 6, 7, 8, 9
Root Type Taproot
Benefits Birds, Butterflies, Pollinators
Seeds per Oz 650
Propagation Treatment Moist Stratification
Days to Moist Stratify 30 days
Direct Sowing Time Fall

Compass Plant is an iconic prairie flower, named for its remarkably large basal leaves that often orient themselves in a north-south direction. Individual plants may grow slowly, but are very long-lived and have been known to live for nearly 100 years. Mature plants are impressive, and produce numerous large yellow flowers along the stem, that open from June through September. Birds seek out the very nutritious seeds.