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Key characteristics

Family: Juncaceae
Height: 12 to 36 inches
Width: 12 to 36 inches
Flower color: Brownish-green, tassel-like clusters
Foliage color: Gray-green to gray-blue, upright, needle-like stems
Bloom time: Spring to early summer
Light: Full sun to partial shade
Water: Moderate; tolerates both wet conditions and drought once established
Maintenance: Low; remove dead or damaged foliage as needed
Growing zone: USDA zones 4 to 9
Wildlife: Provides nesting material for birds

Perennials

Juncus patens

California Gray Rush

Juncus patens is a hardy grass-like plant native to North America, known for its slender, gray-green arching stems that form dense clumps. The plant's fine, narrow leaves contribute to its graceful, tufted shape, making it an excellent choice for wetland gardens, water features, and rain gardens. Its upright, mound-like form adds structure to landscape designs, especially in areas with moist or marshy conditions.

Blooming in late spring to early summer, Juncus patens produces small, brownish or greenish flowers, though the flowers are not the primary feature of this plant.

Light

Full sun to partial shade

Water

Moderate; tolerates both wet conditions and drought once established

Bloom time

Spring to early summer

Find this plant

Works well in

Borders
Cottage Gardens
Bird Gardens
Waterwise Gardens
Cut Flower Gardens

Companion plants

Japanese anemones · Bleeding hearts · Catmint · Heucheras · Lady's mantle · Hellebores

Design tip

Summer flowers carry the middle of the season, so place it where the bed needs color once spring bulbs fade. It takes sun or light shade, which makes it useful along the changing light of a bed edge or a partly shaded border.

Printable plant sheet (PDF)