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Glaucous sedge
Also known as: Gray carex, Carnation-grass
Glaucous sedge grows in many habitats, including disturbed and abandoned areas, grasslands, and moorlands. The blue-pointed ornamental grass is a popular ornamental plant, sold in abundance at garden centers and frequently used as a groundcover in beds, borders, and a range of gardens.
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Perennial
Lifespan
Grass
Plant Type
Green, Blue
Leaf Color
Green, Purple, Brown
Flower Color
Green, Blue
Stem Color
Evergreen
Leaf type
5 - 35 ℃
Ideal Temperature

Images of Glaucous sedge

Distribution of Glaucous sedge

Distribution Map
Glaucous sedge originates from temperate and subarctic regions, thriving in diverse habitats. Its range extends from the northern hemisphere grassland biomes across the Atlantic to encompass parts of the southern hemisphere. Glaucous sedge has been introduced to continents such as Australia and South America, and is also found in North America and New Zealand. Despite its wide distribution, this species is frequently cultivated beyond its native locales.
Native
Cultivated
Invasive
Introduced
No species reported
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Habitat
Grasslands, moorlands, upper edges of salt marshes
Hemisphere Trend Curve

Culture

Interesting Facts
In 1754, Lin Nai founded the true sedge genus. True sedge is also one of the main components of the flora in China. It is the dominant grass species in the lowest forest layer in many areas. In some forests, the lower vegetation is mostly true sedge.
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Weed Control

Often cultivated as an edging plant or a groundcover, glaucous sedge is sometimes considered invasive, but when properly managed it is easy to control its spread.
How to Control It
If you want to remove unwanted glaucous sedge plants, you can cut them to the ground in late winter. They can also be controlled by planting competitive native grasses, or in case of large scale infestations, using grazing animals.
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Quickly Identify Glaucous sedge

1
Silver-blue evergreen foliage
2
Narrow leaves, blue-green upper surface
3
Drought-resistant and spreads through runners
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Care Guide for Glaucous sedge

Every week
Water
Partial sun
Sunlight
5 - 35 ℃
Ideal Temperature
Garden Soil
Soil Type
Water: Glaucous sedge thrives in moderately moist soil, requiring weekly watering to prevent waterlogging. This herbaceous perennial prefers outdoor growth, benefiting from natural rain patterns that enhance its hydration during active seasons.
Fertilize: For glaucous sedge, apply mulch or compost annually in spring to enhance nutrient balance and growth. Use moderate amounts at the base to prevent root burn. As glaucous sedge matures, fertilization needs may decrease; avoid over-fertilization and ensure optimal soil condition for health.
Pruning: Glaucous sedge features blue-green foliage and a clumping habit. Prune dead leaves in early spring to promote growth, and thin clumps every few years to prevent overcrowding. This enhances air circulation, reducing disease risk. Use sharp, clean tools for precise cuts to maintain plant health.
Propagation: Glaucous sedge propagates successfully through division, requiring careful separation of its root system into sections. Each section should contain roots and shoots, and must be replanted at the original depth. Adequate watering after planting aids in root establishment and shoot development.
Repotting: Repot glaucous sedge every 2-3 years in early spring using a shallow, wide container to support its growth. After repotting, maintain moist soil and provide partial sunlight. While glaucous sedge is hardy, regular watering and light feeding will help it recover from repotting stress.
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