Overview
Carex lurida is a clump-forming perennial sedge in the Cyperaceae family, growing 12–36 inches (30–90 cm) tall in dense tufts 12–18 inches (30–45 cm) wide. Stems are triangular, sharply angled, rough on the upper edges. Leaves are flat, 0.2–0.4 inch (5–10 mm) wide, bright green, arching, with rough-textured margins. The inflorescence consists of 2–5 cylindrical female spikes 1–2.5 inches (2.5–6 cm) long, densely packed with large, conspicuous, inflated utricles 0.3–0.4 inch (7–10 mm) long, each tapering to a prominent, bidentate (two-toothed) beak that spreads at right angles to the spike axis, giving the spike a distinctive spiny or bristly appearance. Utricles are yellow-green to straw-coloured at maturity. A single slender male spike 1–2 inches (2.5–5 cm) long tops the inflorescence. The species is native to eastern North America, occurring in wet meadows, swamps, pond margins, stream banks, and ditches from sea level to approximately 4,000 feet (1,200 m). Tolerates seasonal flooding and partial shade. Not drought-tolerant — requires consistently moist to wet soil. The conspicuous, bristly fruiting spikes are retained through autumn and winter, providing structural interest in naturalistic plantings.
Native Range
Carex lurida is native to eastern North America, from Nova Scotia and Ontario south through the eastern United States to Florida and Texas. It occurs in wet meadows, swamps, bogs, stream banks, and roadside ditches, primarily on acidic to neutral soils.Suggested Uses
Planted in rain gardens, bioswales, wet meadows, pond margins, and stream bank stabilisation projects, spaced 12–15 inches (30–38 cm) apart. The bristly fruiting spikes add textural interest from late summer through winter. Native to eastern North America — useful in wetland restoration and native plant gardens. Tolerates partial shade under deciduous trees in wet woodland settings.How to Identify
Appearance
Size & Dimensions
Height1' - 3'
Width/Spread1' - 1'6"
Reaches mature size in approximately 2 years
Bloom Information
Flowering occurs from May through July. Male spikes release pollen by wind over 1–2 weeks. Female spikes develop the characteristic inflated utricles by July–August, turning from green to straw-coloured by September. Spikes persist on stems through winter, gradually shattering by the following spring.Detailed Descriptions
Flower Description
Green aging to straw-colouredFoliage Description
Bright greenGrowing Conditions
Sun Requirements
Requires 4-8 hours of direct sunlight daily
• Full Sun: 6+ hours of direct sunlight
• Partial Shade: 3-6 hours of direct sunlight
• Full Shade: Less than 3 hours of direct sunlight
Care & Maintenance
Care Guide
Plant in full sun to partial shade in consistently moist to wet, acidic to neutral soil with a pH of 5.0–7.0. Space 12–15 inches (30–38 cm) apart. Tolerates standing water to 3 inches (8 cm) deep and seasonal flooding. In rain gardens, plant in the lowest zone. No fertilisation needed. The species self-seeds moderately in open, wet ground — remove spent spikes before seed dispersal if spread is not desired.Pruning
Cut back dead foliage and old spikes to 2–3 inches (5–8 cm) above the crown in late winter before new growth. No other management required. The persistent winter seed heads can be left for structural interest through the cold months.Pruning Schedule
J
F
M
A
M
J
J
A
S
O
N
D
early spring
Maintenance Level
very lowContainer Growing
✓ Suitable for container growing
Minimum container size: 3 gallons