Juncus patens 'Elk Blue' – California Gray Rush

Bring cool blue color and upright texture to garden borders with 'Elk Blue' California Gray Rush.

Juncus patens 'Elk Blue' is a grass-like perennial rush, not a true ornamental grass, selected for its distinctive blue-gray stems. Slender, cylindrical stems form neat upright clumps that contrast beautifully with broad leaves and softly arching grasses. Small brown flower clusters appear near the stem tips in spring and summer, adding subtle seasonal detail. Repeat 'Elk Blue' along a rain garden, place it beside a water feature, or use it as a vertical accent in a mixed container. It tolerates wet soil and periods of dryness once established, while regular moisture helps maintain a fuller clump.

Key Features

• Plant type: Evergreen, grass-like perennial rush
• Distinctive blue-gray cylindrical stems
• Upright clumps provide architectural contrast
• Useful for rain gardens, pond margins, borders, and containers
• Tolerates wet soil and seasonal dryness once established

Growing Details
Height: 18–24 in. | Spread: 18–24 in.
Exposure: Full sun to partial shade | Water: Moderate to regular; tolerates wet soil and periods of dryness once established
Bloom time: Spring through summer | Bloom color: Brown
USDA hardiness zones: 8–10