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Silphium mohrii

Native Plants

Mohr’s Rosinweed

3 Photos


Summary

With large basal, lance-shaped foliage, a clump-forming habit and numerous pale yellow flowers, Mohr’s rosinweed adds a bold statement to the perennial border or naturalized planting. Basal leaves are 10-15” long, gradually smaller as they ascend the stems; both leaves and stems are covered with dense, fine, bristly hairs. The 2” flowers are slightly fragrant, borne on erect, 2-5’ tall stems that branch near the top. Full sun is best but plants will tolerate light shade. Plants prefer a rocky to gravelly, well-drained soil with low fertility. Combined with Rudbeckia fulgida, Physostegia virginiana ‘Vivid’ and Eurybia hemispherica, it adds an architectural element to a meadow planting.


More Details

  • Plant Type
    perennial 
  • Sun/Shade Conditions
    full-sun 
  • Foliage Character
    deciduous 
  • Soil Moisture
    average, dry 
  • Flowering Period
    early-fall, late-summer, mid-summer
  • Soil PH
    adaptable 
  • Flower Color
    yellow 
  • Summer Foliage Color
    green 
  • Fall Foliage Color
    green 
  • Fruit/Seed Color
    brown