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Canada spikerush
Eleocharis geniculata

Copyright by: George D. Gann

General Landscape Uses: Primarily recommended for natural landscapes and habitat restorations.

Ecological Restoration Notes: A somewhat weedy understory element of a wide variety of wetland ecosystems. Will recruit into restoration sites.

Availability: Grown by enthusiasts.

Description: Small annual herb with erect stems.

Dimensions: Typically 2-12 inches in height or sometimes more. About as broad as tall.

Growth Rate: Fast.

Range: Scattered in North America south to the Monroe County Keys; West Indies, Mexico, Central America, South America and Old World tropics. In the Monroe County Keys, apparently disjunct from the Miami-Dade County mainland to Bahia Honda, Big Pine Key and nearby islands.

Map of select IRC data from peninsular Florida.

Habitats: Freshwater and brackish marshes.

Soils: Wet to moist, seasonally inundated freshwater or brackish soils.

Nutritional Requirements: Moderate to low; it prefers soils with organic content, but will still grow reasonably well in nutrient poor soils.

Salt Water Tolerance: Moderate; tolerates brackish water or occasional inundation by salt water.

Salt Wind Tolerance: Moderate; grows near salt water, but is protected from direct salt spray by other vegetation.

Drought Tolerance: Low; requires moist to wet soils and is intolerant of long periods of drought.

Light Requirements: Full sun.

Flower Color: Brown inflorescence.

Flower Characteristics: Inconspicuous.

Flowering Season: All year.

Fruit: Inconspicuous achene.

Horticultural Notes: Can be grown from seed or divisions.

Comments: Recruits readily from seed in the garden, but is not really aggressive.

Copyright by: George D. Gann

Copyright by: Shirley Denton

Copyright by: Keith A. Bradley

Copyright by: Keith A. Bradley

Other data on Eleocharis geniculata available from:

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