Narrowleaf Evening-primrose (Fruticosa)

The Narrowleaf Evening-primrose (Fruticosa) is generally described as a perennial forb/herb. This is native to the U.S. (United States) has its most active growth period in the spring and summer . The Narrowleaf Evening-primrose (Fruticosa) has green foliage and inconspicuous flowers, with a moderate amount of conspicuous brown fruits or seeds. The greatest bloom is usually observed in the summer, with fruit and seed production starting in the summer and continuing until fall. Leaves are not retained year to year. The Narrowleaf Evening-primrose (Fruticosa) has a moderate life span relative to most other plant species and a moderate growth rate. At maturity, the typical Narrowleaf Evening-primrose (Fruticosa) will reach up to 3.3 feet high, with a maximum height at 20 years of 0 inches.

The Narrowleaf Evening-primrose (Fruticosa) is not commonly available from nurseries, garden stores and other plant dealers and distributors. It can be propagated by bare root, seed. It has a moderate ability to spread through seed production and the seedlings have medium vigor. Note that cold stratification is not required for seed germination and the plant cannot survive exposure to temperatures below -33°F. has low tolerance to drought and restricted water conditions.

Plant Basics
Category
Growth Rate Moderate
General Type Forb/herb
Growth Period Spring, Summer
Growth Duration Perennial
Lifespan Moderate
Plant Nativity Native to U.S.
Commercial Availability No Known Source
Physical Characteristics
Bloom Period Summer
Displays Fall Colors No
Shape/Growth Form Multiple Stem
Drought Tolerance Low
Shade Tolerance Tolerant
Height When Mature 3.3
Vegetative Spread None
Flower Conspicuousness Yes
Fruit/Seed Abundance Medium
Fruit/Seed Seasonality Summer Fall
Seed Spread Rate Moderate
Gardening Characteristics
Propagations (Ways to Grow) Bare Root, Seed
Moisture Requirements High
Cold Stratification Required No
Minimum Temperature -33
Soil Depth for Roots 6
Toxic to Nearby Plants No
Toxic to Livestock No
After-Harvest Regrowth Rate Slow
After-Harvest Resprout Ability No
Responds to Coppicing No
Growth Requirements
pH Range 4.5–7 pH
Precipitation Range 32–32 inches/yr
Planting Density 11000–43000 indiv./acre
Soil Textures Coarse, Fine, Medium
Soil Depth for Roots 6
Minimum Frost-Free Days 140 day(s)
Salinity Tolerance High
CaCO3 Tolerance High
Sustainability & Use
Leaf Retention No
Fire Resistant No
Causes Livestock Bloating None

Source: USDA, NRCS, PLANTS Database, plants.usda.gov.
National Plant Data Center, Baton Rouge, LA 70874-4490 USA