Northern Evening Primrose (Oenothera parviflora) This is a similar species to Common Evening primrose (O.biennis) however there are a few notable differences that garner separate classification. Northern Primrose flowers are somewhat smaller, 4 -petals, lime-yellow in colour and born on a more pronounced nodding spike. These plants are also much taller and exhibit a few physiological traits that also distinguish it from O.biennis, such as pronounced sepal knobs and pronounced leaf venation. This biennial plant will naturalize itself quite easily in all soil types, but prefers well-drained soils. It will thrive in partial shade as well as it does in full sun. A prolific late season bloomer that attracts a multitude of pollinators. If you want to add some fall colour, this is a real nice choice. Primrose oil which is high in a essential fatty acid called gamma-linolenic, has traditionally been used to treat many conditions such as eczema, PMS, osteoporosis and arthritis. A very useful landscape plant or herb, to add in a semi-contained area of your garden. We have several blocks on our farm that continue to flower and stand out during the late weeks of fall and early winter.
Approx. 500 seeds per packet $3.95
Growing Instructions: This is a biennial, therefore the flower forms a rosette in the first year followed by florals in year 2. Seeds can be sown in late fall (surface sown) or must undergo cold stratification for 4-6 weeks in refrigeration if sown in spring. Surface sow seeds after risk of last frost is gone. Can be sown indoors 8 weeks before last frost in peat pots to prevent root disturbance. Direct seeding is recommended. Seeds germinate in 7-28 days. Seeds can be sown outdoors in the late fall to satisfy cold period required for spring germination.