Cyperus alternifolius (Umbrella Grass)
Cyperus alternifolius (Umbrella Grass)
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Cyperus alternifolius (Umbrella Grass) is a striking aquatic perennial known for its elegant upright stems topped with umbrella-like clusters of fine green bracts. It adds bold architectural structure to water gardens, pond edges, and consistently moist areas of the landscape
From late summer into autumn, it produces small yellow-brown flower spikelets that enhance its decorative appeal. Fast-growing and moisture-loving, this plant is ideal for creating lush, tropical-style planting effects in wet or boggy conditions

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Mature height
1m
Mature width
1m
Spacing
0.8 to 1m
Evergreen/Deciduous
Evergreen in warm climates, frost tender in cold regions
Foliage
Fresh green umbrella-like bracts with small yellow-brown flower spikelets
Flowering Period & Fruit Development/Harvest
Late summer to autumn with decorative seed heads
Sun tolerance
Full sun to light shade
Maintenance
Low to medium, prefers regular moisture and removal of old stems
Root System
Clumping, fibrous and spreading in wet soils