September 2025 Plant Of The Month

Overview

Rhus aromatica, commonly known as Fragrant Sumac, is a deciduous shrub recognized for its ornamental and ecological value. In spring, it produces pale yellow to cream-colored flowers which are followed by vibrant red drupes (berries). The shrub concludes the growing season with attractive fall foliage. Its leaves consist of three leaflets, distinct from poison oak, as the terminal leaflet on poison oak has a petiole (stem), while Fragrant Sumac does not.

Plant Description

·         Size: Typically grows 2–8 feet tall and 4–8 feet wide

·         Form: Irregular to rounded; spreads by root suckers

·         Fragrance: Fragrant foliage

Wildlife Supported

Fragrant Sumac supports a variety of wildlife. Its flowers provide nectar and pollen for bees and butterflies.  It serves as a host plant for the larvae (caterpillars) of a couple of dozen species of butterflies and moths.  The fuzzy red berries support numerous bird and small mammal species, especially in winter when more palatable food is not available.  The plant's spreading thicket creates valuable cover and nesting sites.  The shrub is also noted for its resistance to deer.

Landscaping Information

·         Sun Requirements: Thrives in part shade but tolerates full sun in Redding

·         Moisture Needs: Prefers low moisture once established

·         Soil Drainage: Favors fast-draining, sandy soil

·         Cold Tolerance: Hardy to -15°F

·         Natural Habitat: Found on slopes, washes, canyons, rocky prairies, chaparral, and foothill woodlands.  It is a pioneer species, establishing rapidly from seed after heavy disturbance, particularly fire.

Common Uses

Fragrant Sumac is commonly used for hedges, as it spreads to form polygamous (polygamodioecious) colonies.  It is visually appealing when planted en masse or in drift-like arrangements, mimicking its natural occurrence. The shrub is effective for stabilizing embankments and is suitable for wild or naturalized areas in native plant gardens.