Tufted Evening Primrose
Scientific Name: Oenothera caespitosa Nutt.
Synonyms: Oenothera cespitosa Nutt., orth. var.
Classification: Plantae/ Tracheobionta / Spermatophyta / Magnoliophyta / Magnoliopsida / Rosidae / Myrtales / Onagraceae / Oenothera L./ Oenothera caespitosa Nutt.
| General Information | |
|---|---|
| Usda Symbol | OECA10 |
| Group | Dicot |
| Life Cycle | Perennial |
| Growth Habits | Forb/herbSubshrub, |
| Native Locations | OECA10 |
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 Soils | Yes |
| Adapted to Fine Textured Soils | No |
| Adapted to Medium Textured Soils | Yes |
| Anaerobic Tolerance | None |
| CaCO3 Tolerance | High |
| Cold Stratification Required | Yes |
| Drought Tolerance | High |
| Fertility Requirement | Low |
| Fire Tolerance | Medium |
| Frost Free Days, Minimum | 140 |
| Hedge Tolerance | Medium |
| Moisture Use | Low |
| pH, Maximum | 8.0 |
| pH, Minimum | 6.5 |
| Planting Density per Acre, Maxim | 4800 |
| Planting Density per Acre, Minim | 2700 |
| Precipitation, Maximum | 69 |
| Precipitation, Minimum | 7 |
| Root Depth, Minimum (inches) | 6 |
| Salinity Tolerance | Medium |
| Shade Tolerance | Intolerant |
Morphology/Physiology
| After Harvest Regrowth Rate | Slow |
|---|---|
| Toxicity | None |
| Resprout Ability | No |
| Shape and Orientation | Decumbent |
| Active Growth Period | Spring and Summer |
| Bloat | None |
| C:N Ratio | Medium |
| Coppice Potential | No |
| Fall Conspicuous | No |
| Fire Resistant | No |
| Flower Color | White |
| Flower Conspicuous | Yes |
| Foliage Color | Green |
| Foliage Porosity Summer | Porous |
| Foliage Porosity Winter | Porous |
| Fruit/Seed Color | Brown |
| Nitrogen Fixation | None |
| Low Growing Grass | No |
| Lifespan | Short |
| Leaf Retention | No |
| Known Allelopath | No |
| Height, Mature (feet) | 0.5 |
| Growth Rate | Rapid |
| Growth Form | Single Crown |
| Fruit/Seed Conspicuous | No |
| Foliage Texture | Medium |
Reproduction
| Vegetative Spread Rate | None |
|---|---|
| Small Grain | No |
| Seedling Vigor | High |
| Seed Spread Rate | Rapid |
| Fruit/Seed Period End | Fall |
| Seed per Pound | 1300000 |
| Propagated by Tubers | No |
| Propagated by Sprigs | No |
| Propagated by Sod | No |
| Propagated by Seed | Yes |
| Propagated by Corm | No |
| Propagated by Container | Yes |
| Propagated by Bulb | No |
| Propagated by Bare Root | No |
| Fruit/Seed Persistence | No |
| Fruit/Seed Period Begin | Summer |
| Fruit/Seed Abundance | High |
| Commercial Availability | Contracting Only |
| Bloom Period | Late Spring |
| Propagated by Cuttings | No |
Suitability/Use
| Veneer Product | No |
|---|---|
| Pulpwood Product | No |
| Protein Potential | Medium |
| Post Product | No |
| Palatable Human | No |
| Palatable Graze Animal | Medium |
| Palatable Browse Animal | Medium |
| Nursery Stock Product | Yes |
| Naval Store Product | No |
| Lumber Product | No |
| Fodder Product | No |
| Christmas Tree Product | No |
| Berry/Nut/Seed Product | No |
