| Description | Willamette Valley gumweed (gumplant, Puget Sound gumweed) grows in wet meadows and fresh and salt marshlands. The name comes from a gummy, tar-scented exudate on the leaves. Gumweed is an important late-season source of pollen and nectar for native butterflies and bees. Established plants readily self-sow. |
| Plant Type | Perennial. |
| Flower Color | Yellow. |
| Bloom Period | June-November. |
| Height at Maturity | 8-40" |
| Plant Spacing | 12-18" |
| Light Requirements | Full sun to light shade. |
| Moisture Needs | Moist soil, adapted to late summer drought. |
| Soil Type |
Tolerates poor, sand to clayey and saline soils. Very tolerant of various soil types and adapts to the garden easily. |