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Silphium trifoliatum

Also called Three-leaved Rosinweed


More About Silphium trifoliatum

  • Bright yellow, daisy-like flowers open at the top of each stem
  • Leaves are in whorls of three or occasionally four
  • Sturdy, smooth stems are purple in colour
  • Bloom Time: June to September

Zone:

4

Height:

150-175 cm

Colour:

Yellow
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Whorled Rosinweed Growing and Maintenance Tips

Grows under a variety of conditions along stream banks, on hillsides, and in flat, open spaces. 


Silphium trifoliatum Characteristics

Full Sun
Full Sun

Soil Moisture

Well-drained
Average to Dry Soils

Growth Rate

Medium

Flowering Time

Lt. Sum-Fall
Summer

Habit

Upright
Clumping

Foliage Color

Green

Landscape uses

Naturalizing
Roadside planting