Grindelia integrifolia

Willamette Gumweed, Puget Gumweed is an important native late blooming pollinator plant.  A native resident in the Willamette Valley along water courses and marshlands- It seems to excel in areas that are wet in the winter and bone dry in summer. That kind of adaptation begs for its inclusion in bioswales and to stabilize stream banks. In normal garden conditions gumweed – which derives its common name from the gummy exudent on the leaves. It has a  tar-like fragrance and is positioned on the leaves to decrease evaporation. It may also impart some resistance to saline conditions. In June-Sept. this large, spreading plant is decorated with corymbs of bright yellow daisy flowers. Immediately they are attended by pollinators. Its fascinating. The flower bud is densely armed with prickles giving this native daisy kind of a tough look. To 30″ x 30″. Full sun and rich to average conditions. Tolerates clay soils if you water it consistently to get the new roots into the clay soil. Once established it’s a very drought adapted plant. It also improves substantially under cultivation. Combine with Symphyotrichon subspicatum ‘Sauvie Sky’ and Solidago for a native prairie redux. Winter dormant. Seed grown from plants native to the Willamette Valley. Moderate deer resistance. Oregon native plant.

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