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Evening Primrose

Oenothera biennis, Onagraceae

Zones
3a–9b
Layer
Herbaceous
Lifespan
Biennial
Growth
Fast

Guild Roles

Pollinator AttractorProducer

Growing Conditions

Sun

Full Sun (optimal)

Water

LowLowLow

Soil pH

5.5 – 7.5

Tolerances

Drought
Frost
Heat
Pest Resistance
Disease Resist.

Companion Plants

LettuceLactuca sativa
Beneficial Insect HabitatTrap Crop
Broadleaf ArrowheadSagittaria latifolia
Pollinator SharingBeneficial Insect Habitat
Common BeanPhaseolus vulgaris
Beneficial Insect Habitat

Antagonistic Plants

Fishtail PalmCaryota urens

Fishtail palm creates dense shade that inhibits evening primrose growth

CleaversGalium aparine

Evening primrose and cleavers compete for light and space in disturbed habitats

Uses

Functions

FoodMedicine

Edible Parts

SeedsRootsLeaves

Common Questions

What zones does Evening Primrose grow in?

Evening Primrose grows in USDA hardiness zones 3a through 9b.

What are good companion plants for Evening Primrose?

Good companions for Evening Primrose include Lettuce, Broadleaf Arrowhead, Common Bean.

Design guilds with Evening Primrose and see companion relationships visually.

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