Golden yarrow

Golden yarrow (Eriophyllum confertiflorum) is a perennial subshrub belonging to the Asteraceae family. Known for its resilient nature and vibrant inflorescences, this plant is a staple in native plant gardening, characterized by its fine, silvery-green foliage and dense clusters of bright yellow flowers.

Native to California and parts of Baja California, Mexico, the plant typically inhabits chaparral and coastal sage scrub ecosystems. Its evolutionary history has made it exceptionally well-suited for Mediterranean climates, where it thrives in long, hot, dry summers and cool, wet winters.

Botanically, it is defined by its dissected leaves which are covered in fine, woolly hairs, acting as a defense mechanism against water loss. The plant grows in a rounded, shrubby form, typically reaching 30 to 90 centimeters in height, with numerous small flower heads appearing in flattened corymbs during the blooming season.

Regarding agrotechnical requirements, Eriophyllum confertiflorum demands well-draining, sandy, or rocky soils. It is highly intolerant of heavy, clay-based soils that retain excessive moisture. Full sun exposure is essential for maintaining the plant’s compact habit and ensuring a prolific display of yellow blooms.

The plant is primarily used in xeriscaping, low-maintenance landscaping, and habitat restoration projects designed to support local pollinator populations. While generally robust, it can be susceptible to root rot if overwatered, and gardeners should monitor for common pests such as aphids during the active growing season.