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 coating 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.
Grindelia integrifolia
Family: Asteraceae Genus: Grindelia
Plant type: Herbaceous perennial
Biomes/Growing conditions: Deer Resistance, Hot Aspects, Low Water/No Water, Mesic, Oregon Coast, Western Native, Willamette Valley Natives
Sun exposure: Full Sun
USDA Hardiness zone: Zn6a -5º to -10ºF
Foliage color: Mid Green
Foliage season: Winter Deciduous