Arrowleaf Balsamroot

Balsamorhiza sagittata

Asteraceae

• Spokane Native
• Full sun (6+ hours), tolerates part shade
• 12"-36" tall x 24-36" wide
• Drought Tolerant: Yes
• Evergreen: No
• Flower Color: Bright yellow (April–June)
• Wildlife Benefits: Outstanding — seeds eaten by birds and rodents; foliage, flowers, and stems browsed by deer, elk, bighorn sheep, and pronghorn; key early pollinator resource for native bees and butterflies

Arrowleaf Balsamroot is one of the most iconic and ecologically significant wildflowers of the Intermountain West and Pacific Northwest shrub-steppe, growing abundantly across eastern Washington in deep, rich soils within ponderosa pine forests and big sagebrush communities. Its massive taproot — reaching diameters of four inches and depths approaching nine feet — anchors it firmly against drought, fire, trampling, and grazing, making it one of the most resilient perennials of its range. It thrives in full sun on well-drained, silty to sandy loam soils and is most commonly found on south-facing slopes, open prairies, and forest openings where it often forms spectacular golden-yellow colonies in spring. Once established in the garden, it requires essentially no supplemental irrigation and will persist and spread slowly for decades.

The plant forms a dense basal rosette of large, distinctly arrow-shaped (sagittate) leaves, silvery-green and velvety with soft hairs, growing 8 to 24 inches long. After bloom time the leaves become hairless and papery, twisting into a characteristic dried form as the plant enters summer dormancy. Tall leafless flower stems arise in spring, each bearing a single, solitary sunflower-like blossom up to four inches across with 8–25 bright yellow ray florets surrounding a yellow disc center. The overall effect in mass is breathtaking — open hillsides covered in sheets of gold are a signature spectacle of eastern Washington and the Spokane region each April and May. The seeds are oil-rich achenes eaten eagerly by many bird species.

Arrowleaf Balsamroot carries an extraordinary breadth of ethnobotanical uses among Indigenous peoples across its range. Nearly all parts of the plant are edible: young shoots were eaten raw or cooked in spring; immature flower stems were peeled and eaten like celery; roots were baked or steamed in earth ovens or dried and ground into flour; seeds were parched and eaten whole or pressed for oil; and the roots served as a coffee substitute. Medicinally, poultices, infusions, and decoctions of the roots and leaves were used for an exceptionally wide range of conditions — body aches, wounds, blisters, fevers, whooping cough, and respiratory ailments. The plant is also an important range forage species, considered excellent grazing for cattle, sheep, elk, and pronghorn in spring and early summer.

In Spokane-area gardens, Arrowleaf Balsamroot is most effectively used in large naturalized plantings, wildflower meadows, dry slope stabilization, and open, sunny borders where its bold scale and early-season color can be fully appreciated. It is slow to establish from seed (typically requiring 2–3 years before first bloom) due to its deep taproot development, but is extraordinarily long-lived once settled. Avoid transplanting established plants as the taproot does not tolerate disturbance. Superb companions in a native shrub-steppe garden include Big Sagebrush (Artemisia tridentata), Silvery Lupine (Lupinus argenteus), Prairie Smoke (Geum triflorum), Scarlet Gilia (Ipomopsis aggregata), Idaho Fescue (Festuca idahoensis), and Bluebunch Wheatgrass (Pseudoroegneria spicata). It is also excellent planted in concert with later-blooming natives so the dormant summer foliage is softened by surrounding growth.