Carex holostoma
Arctic Marsh Sedge (Carex holostoma) is a low-lying plant native to cold, wet climates, most commonly found in Arctic tundra and bogs. It typically grows in linear clumps approximately 4-6 inches tall, with dense masses of foliage and small, inconspicuous flower heads. The flat green to yellow-green foliage looks similar to grass, with sharp-pointed, cylindrical segments surrounding an often brown-tinged core. Arctic Marsh Sedge is an extremely hardy plant, able to withstand cold temperatures, high humidity, and periods of standing water. It is incredibly useful in both natural and artificial wetlands, providing reliable, long-term vegetation cover and water filtration.
Sunlight
Partial Shade
Water Needs
medium
Water Every
"2-3" days
Sun Needs
partial-shade
Growth
Low
Care Level
Low
💧 Water every "2-3" days
Seasonal Adjustments
Adjust watering frequency based on temperature, humidity, and season. Water more frequently in summer and less in winter.
Pro Tip: Check soil moisture before watering. Stick your finger 1-2 inches into the soil—if it's dry, it's time to water!
Divide root ball in spring, replant sections immediately
Start seeds indoors 6-8 weeks before last frost date
Take 4-6" cuttings in spring, root in water or moist soil
Bend stem to soil surface, cover lightly, roots form in 4-6 weeks
Good For:
Consider Carefully:
Enjoys dappled or limited direct sun—about 2–4 hours of morning or late afternoon light and protection during peak midday sun.
Keep soil consistently moist but not waterlogged. Water when top inch of soil is dry.