Tufted Evening Primrose

Scientific Name: Oenothera caespitosa Nutt.


Classification: Plantae/ Tracheobionta / Spermatophyta / Magnoliophyta / Magnoliopsida / Rosidae / Myrtales / Onagraceae / Oenothera L./ Oenothera caespitosa Nutt.

Tufted Evening Primrose
General Information
Usda SymbolOECA10
GroupDicot
Life CyclePerennial
Growth HabitsForb/herbSubshrub,
Native LocationsOECA10

Plant Guide

Use a soil moisture meter to monitor the soil moisture where Tufted Evening Primrose is planted.

Plant Traits

Growth Requirements

Temperature, Minimum (°F)-13
Adapted to Coarse Textured SoilsYes
Adapted to Fine Textured SoilsNo
Adapted to Medium Textured SoilsYes
Anaerobic ToleranceNone
CaCO3 ToleranceHigh
Cold Stratification RequiredYes
Drought ToleranceHigh
Fertility RequirementLow
Fire ToleranceMedium
Frost Free Days, Minimum140
Hedge ToleranceMedium
Moisture UseLow
pH, Maximum8.0
pH, Minimum6.5
Planting Density per Acre, Maxim4800
Planting Density per Acre, Minim2700
Precipitation, Maximum69
Precipitation, Minimum7
Root Depth, Minimum (inches)6
Salinity ToleranceMedium
Shade ToleranceIntolerant


Morphology/Physiology

After Harvest Regrowth RateSlow
ToxicityNone
Resprout AbilityNo
Shape and OrientationDecumbent
Active Growth PeriodSpring and Summer
BloatNone
C:N RatioMedium
Coppice PotentialNo
Fall ConspicuousNo
Fire ResistantNo
Flower ColorWhite
Flower ConspicuousYes
Foliage ColorGreen
Foliage Porosity SummerPorous
Foliage Porosity WinterPorous
Fruit/Seed ColorBrown
Nitrogen FixationNone
Low Growing GrassNo
LifespanShort
Leaf RetentionNo
Known AllelopathNo
Height, Mature (feet)0.5
Growth RateRapid
Growth FormSingle Crown
Fruit/Seed ConspicuousNo
Foliage TextureMedium


Reproduction

Vegetative Spread RateNone
Small GrainNo
Seedling VigorHigh
Seed Spread RateRapid
Fruit/Seed Period EndFall
Seed per Pound1300000
Propagated by TubersNo
Propagated by SprigsNo
Propagated by SodNo
Propagated by SeedYes
Propagated by CormNo
Propagated by ContainerYes
Propagated by BulbNo
Propagated by Bare RootNo
Fruit/Seed PersistenceNo
Fruit/Seed Period BeginSummer
Fruit/Seed AbundanceHigh
Commercial AvailabilityContracting Only
Bloom PeriodLate Spring
Propagated by CuttingsNo


Suitability/Use

Veneer ProductNo
Pulpwood ProductNo
Protein PotentialMedium
Post ProductNo
Palatable HumanNo
Palatable Graze AnimalMedium
Palatable Browse AnimalMedium
Nursery Stock ProductYes
Naval Store ProductNo
Lumber ProductNo
Fodder ProductNo
Christmas Tree ProductNo
Berry/Nut/Seed ProductNo

Tufted Evening Primrose

Tufted Evening Primrose

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