PatternBaseSea Pea
Lathyrus japonicus, Fabaceae
Zones
2–8
Layer
Ground Cover
Lifespan
Perennial
Growth
Moderate
Guild Roles
Nitrogen FixerGround CoverMulch Maker
Growing Conditions
Sun
Full Sun (preferred)
Water
Low (established)Moderate (seedling)
Soil pH
6.5 – 8
Tolerances
Drought
Frost
Heat
Pest Resistance
Disease Resist.
Companion Plants
Antagonistic Plants
Grass VetchlingLathyrus nissolia
Related Lathyrus species compete for rhizobia and similar nutrient resources
Oriental BurnetSanguisorba tenuifoliaBoth have deep root systems in coastal environments, leading to resource competition
Antarctic Hair GrassDeschampsia antarcticaBoth have extensive root systems in harsh environments, leading to intense competition for limited resources
Uses
Functions
Nitrogen FixationDune StabilizationErosion ControlSalt Tolerance
Edible Parts
SeedsYoung Pods
Common Questions
What zones does Sea Pea grow in?
Sea Pea grows in USDA hardiness zones 2 through 8.
Is Sea Pea a nitrogen fixer?
Yes, Sea Pea is a nitrogen fixer and can help provide nitrogen to neighboring plants in a guild or polyculture.
What are good companion plants for Sea Pea?
Good companions for Sea Pea include Coast Buckwheat, Flat Pea.
Design guilds with Sea Pea and see companion relationships visually.
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