PatternBaseMammoth Wild Rye
Leymus racemosus, Poaceae
Zones
4–8
Layer
Herbaceous
Lifespan
Perennial
Growth
Fast
Guild Roles
Ground CoverMulch MakerDynamic Accumulator
Growing Conditions
Sun
Full Sun (preferred)Partial Shade (tolerated)
Water
Low (established)Moderate (seedling)
Soil pH
6 – 8.5
Tolerances
Drought
Frost
Heat
Pest Resistance
Disease Resist.
Companion Plants
Antagonistic Plants
Giant KnotweedPolygonum sachalinense
Giant knotweed's aggressive growth and dense shade suppresses mammoth wild rye through light and root competition
Large CrabgrassDigitaria sanguinalisAnnual crabgrass competes aggressively with perennial grasses for space and resources
Ripgut BromeBromus rigidusAggressive annual brome that can suppress establishment of perennial grasses
Uses
Functions
Massive Biomass ProductionSoil StabilizationCarbon SequestrationWildlife HabitatErosion Control
Edible Parts
Seeds
Common Questions
What zones does Mammoth Wild Rye grow in?
Mammoth Wild Rye grows in USDA hardiness zones 4 through 8.
What are good companion plants for Mammoth Wild Rye?
Good companions for Mammoth Wild Rye include Prairie Turnip, Groundplum Milkvetch, Chinese Bush Clover.
Design guilds with Mammoth Wild Rye and see companion relationships visually.
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