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Rosin Weed

Silphium integrifolium

Rosinweed features broad, lance-shaped leaves and robust stems that support its large, yellow, sunflower-like blooms. Flowering from mid to late summer, the flowers draw tons of pollinators such as bees and butterflies. Rosinweed's strong, upright growth habit makes it a fantastic structural plant for the back of a border or as part of a native plant meadow where its flowers can shine. It thrives in full sun and can tolerate poor, dry soils, making it a durable choice for challenging garden spots.

Details

Height36” - 72”
Spread24"
Bloom SeasonJuly – September
Soil Types
clayClay
loamLoam
sandSand
Soil Moisture
mediumMedium
moistMoist
Sun Exposure
fullSunFull Sun

Range Map

Available
Not available

Ecological Benefits

Maintenance Tips

  • Deadhead spent blooms to encourage a tidy appearance and possibly additional blooms.
  • Minimal care is required overall but taller plants in windy areas can be staked to prevent stem damage.
  • Monitor seedlings, which can be allowed to spread or policed to control

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