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Carex rostrata
beaked sedge
Carex rostrata
Carex rostrata, or Bottle Sedge, is a robust, clump-forming perennial sedge with a distinctive bottle-shaped female inflorescence. It features long, narrow, bright green leaves and thrives in moist to wet conditions. It's particularly attractive to wildlife, providing cover and food sources.
CategoryDetails
Plant TypePerennial plant
Estimated Plant Lifespan10 years lifespan
Sun Requirements4-6 hours direct sunlight (Partial Sun)
Pollination

Method: Wind

Watering Requirements

Method: Top water

Frequency: Keep consistently moist, avoid letting the soil dry out completely

Notes: Water more frequently during dry spells and hot weather.

Humidity Requirements

Level: High

Temperature Range

Min: -15°C

Max: 30°C

Alternative NamesBottle Sedge
Lythrum salicaria
purple loosestrife
Lythrum salicaria
Both thrive in wet, boggy conditions and create a visually interesting contrast of textures and colors. Spiked Loosestrife provides vertical interest alongside the Bottle Sedge's clumping habit.
Iris pseudacorus
Yellow Iris
Iris pseudacorus
These share similar water requirements and create a beautiful, natural waterside planting scheme. They complement each other's forms and flowering times.
Phragmites australis
common reed
Phragmites australis

Common Reed is a vigorous grower that can quickly outcompete Bottle Sedge for resources in wet areas, particularly sunlight and nutrients. Its aggressive spread can smother the Bottle Sedge.

Steps:

    • Divide mature clumps in spring or early autumn.
    • Ensure each division has healthy roots and shoots.
    • Replant immediately in moist, well-drained soil.

Compost

Enriches the soil and provides essential nutrients for healthy growth.