Carex bromoides aka Brome Like Sedge

Carex bromoides is a perennial in the sedge family, Cyperaceae. Common names include brome-like sedge and brome hummock sedge. Its native range covers much of eastern North America. It extends from eastern Canada through the United States into Mexico. Wild plants grow in wet woods, bogs, and seepages. They also occur beside wetlands and in seasonal ponds.

This sedge forms dense tufts with a soft, arching outline. Garden clumps reach about 1 foot [0.3 metres] tall. They spread to about 1.7 feet [0.53 metres] across. NC State also lists heights reaching 3 feet [0.91 metres]. Individual clumps widen slowly rather than sending out runners. Narrow green leaves rise from the base and spread outward. Their length ranges from 0.25–0.75 feet [0.08–0.23 metres]. The blades have smooth, hairless faces but rough edges. Green stems bear narrow flower clusters at their tips.

Flowers appear from May through July in two source accounts. Chicago Botanic Garden records an earlier March-to-June season. Each flower cluster holds three to eight small spikelets. These carry female flowers and may also carry male flowers. A pouch-like bract, called a perigynium, surrounds each female flower. The flower clusters start green and turn tan with age. The small fruits are achenes, with green or brown tones. The fine leaves give the plant more visual weight than flowers.

Grow this sedge in partial shade with moist to wet soil. Soil should contain some organic matter. It can take brief spells of shallow standing water. More sun suits it where the soil stays moist. NC State warns that clay soils do not suit it. Missouri Botanical Garden lists USDA zones 4–8 for cultivation. NC State extends this range to zone 9. Chicago's archived entry gives a broader range of 2–10. Division and seed are both listed as ways to propagate it.

Use it beside ponds, along streams, or in damp woodland gardens. It also suits shaded parts of rain gardens. Plant it alone to show its fine leaves and rounded form. Groups can make a ground cover without aggressive runner growth. NC State notes its value for bank support and water filtration. The sources list birds and butterflies among its visitors. Care needs are low, with no serious pest or disease problems reported.