Willamette Valley Gumweed

Grindelia integrifolia Willamette valley gumweed, also known as Puget Sound gumplant, is a stout plant, standing up to four feet tall, with showy, yellow flowers that are coveted by native butterflies, bees, syrphid flies, wasps and other beneficial insects. It's one of the few native wildflowers that bloom in late summer and even fall, making it an important late-season source of pollen.  Plant type/canopy layer: deciduous, perennial, herbaceous plant Size at maturity: 36-48” tall, 12-18” wide Light requirements: full sun to part shade Moisture requirements: dry to wet soil (pretty much any soil!) Growth rate/ease: moderate growth rate, easy to grow Bloom time: June - September - but occasionally as late as Oct Wildlife support: flowers are an important late-season source of pollen and nectar for butterflies, native bees, syrphid flies, wasps and other beneficial insects; seeds provide food for birds  Native habitat/range: grows in freshwater and saltwater marshes, wet