Oregon sunshine

Eriophyllum lanatum

Asteraceae

• Spokane Native
• USDA Zone 4-9
• Sun-Part Shade
• Size: 2’ tall x 2’ wide
• Drought Tolerant: Yes
• Evergreen: no
• Flower Color: golden yellow (May - August)
• Wildlife Value: native bees, butterflies, hover flies, and tachinid flies, host plant for several butterfly and moth species

This cheerful native perennial forms well-branched clumps with an erect to spreading growth habit, naturally occurring on dry sandy plains, open grassy or rocky sites, semi-desert areas, and fine talus slopes from low to subalpine elevations throughout western North America. Oregon Sunshine is a highly variable plant depending largely on growing conditions and variety, typically growing 6-12 inches tall in garden settings but potentially reaching up to 24 inches with adequate moisture. The plant thrives in full sun to light shade and requires very well-drained rocky, sandy, or dry soil—this is one plant that can easily be killed with kindness through overwatering. Once established, it demonstrates exceptional drought tolerance and heat resistance, making it perfect for harsh dry sites where other plants struggle. It is unique among western natives for occurring naturally on both sides of the Cascades, adapted to diverse arid habitats across the region.

The delicately and deeply lobed leaves create attractive mounds of feathery foliage in shades of grayish-green to silvery-green, depending on the variety and degree of woolly white hair coverage. Both stems and leaves may be densely covered with soft white hairs that give the plant its distinctive woolly appearance—these hairs serve an important function, conserving water by reflecting heat and reducing air movement across the leaf surface. The intricate, lacey leaves display a unique silvery hue when young, adding excellent texture to garden compositions. The gray-green foliage provides the perfect foil for the dazzlingly bright golden yellow daisy-like flowers that freely cover the plant from May through August in a long, spectacular bloom period. The composite flower heads grow 1.5-2.5 inches wide with 8-12 bright yellow ray petals (darker toward the base) surrounding golden yellow disk flowers. Each cheerful bloom appears solitary on long stems held above the foliage, creating masses of sunny color that can outshine any non-native ornamental.

Oregon Sunshine is considered a pollinator powerhouse, attracting an impressive diversity of beneficial insects documented by the Oregon Bee Atlas. The flowers provide nectar and pollen for numerous native bee species including sweat bees, mining bees, mason bees, and several species suspected of specializing on Eriophyllum. Hover flies and tachinid flies also frequent the blooms, while butterflies including orange sulfur, red admiral, comma, and skipper butterflies visit for nectar. The plant serves as a nectar source for the endangered Fender's Blue butterfly and acts as a host plant for several native butterfly and moth species. The species is a member of the sunflower family (Asteraceae), the largest family of flowering plants in the world and particularly important in sagebrush-steppe ecosystems. Birds are attracted to the seeds and may use the plant as nesting material. The plant is ignored by deer, making it ideal for areas with browsing pressure.

Oregon Sunshine excels in sunny rock gardens, xeriscapes, gravel gardens, parking strips, border edges, naturalized areas, cottage gardens, meadows, and that almost-nothing-will-grow-there problem spot beyond irrigation reach. This is an excellent colonizer for disturbed sites such as excavated, burned, or backfilled areas with marginal topsoil. Plant in groups or masses for maximum visual impact—when flowering, it transforms into brilliant golden carpets that brighten any landscape. The plant is best suited for dry summer conditions and should be sited where drainage is excellent; avoid winter wet and do not overwater once established. It is a prolific seed producer and will readily spread to surrounding open ground through self-seeding. Remove flower heads prior to seed ripening if spread is not desired, though volunteers are generally welcomed. The plant can be propagated easily from seed gathered in fall or from cuttings. Because the species is so variable, choose material from a habitat that matches your site conditions. Oregon Sunshine combines beautifully with other drought-tolerant natives such as Penstemon species, Eriogonum species, Blue Flax (Linum lewisii), and native bunchgrasses. This under-appreciated and under-used native deserves wider recognition for its cheerfulness, toughness, and ecological value. Generally disease-resistant with no serious pest issues, though leaves may occasionally experience minor insect damage.