Grassleaf Rush

Juncus marginatus

Native to:
Bermuda, Bolivia, Brazil, Canada, Cuba, Honduras, Jamaica, Mexico, United States

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Taxonomy

Division:
Magnoliophyta | - Flowering plants
Family:
Juncaceae
Genus:
Juncus
Species:
Juncus marginatus
USDA Symbol:
JUMA4

Growth Characteristics

Life Cycle:
Perennial
Growth Habit:
Graminoid
Height:
80 cm
Light Requirements:
Part Shade
Drought Tolerance:
Low
Bloom Months:
may,jun,jul,aug,sep
Bloom Colors:
green, brown

Keystone Species Ranking

Caterpillar Keystone:
★★☆☆☆ Butterfly & moth species supported by this genus (NWF)

Garden & Ecology Notes

Wildlife Value:
waterfowl, songbirds, small mammals
Deer Resistant:
Yes
Fire Ecology:
Fire adapted — tolerates or benefits from fire
Fire Notes:
Resprouts from rhizomes following fire; tolerates prescribed burns in wetland management.

Soil Requirements

Soil Type:
wet, sandy or peaty soil
pH:
4.5 - 6.5 (acidic to slightly acidic)
Drainage:
tolerates poor drainage
Moisture:
consistently moist
Notes:
commonly found in wetlands and marshes

Propagation & Germination

Stratification:
Cold/moist stratification required — 30–60 days
Germination Time:
14–30 days
Notes:
Seeds require light for germination; sow on surface and keep consistently moist.

The above propagation data sourced from Claude AI

Pre-treatment: Seeds were cold stratified for 100 days

Source: npn.rngr.net