Perennial – Evening Primrose
Evening Primrose
Botanical name: oenothera biennis
Beginner friendly?: moderate
Average size at maturity: 1-5 ft in height with a spread of 2-3 ft
Hardy zone: zones 4-9
Growth rate: reaches fully mature size in 2-3 growing season
Foliage color: green
Flower color: white, pink, yellow
Bloom time: summer
Pruning instructions: deadhead withered blooms and foliage as needed
Propagation methods: propagate by seed sowing
Landscape use: pollinator garden, container plant, slopes/erosion control
Special features: disease resistant, heat tolerant, pet-friendly, clay tolerant
Light needs: 6 hours of sun per day
Watering instructions: allow the top 2 inches of soil to dry out between watering sessions
Fertilizing instructions : use a diluted liquid fertilizer that is high in phosphorus and nitrogen to encourage more blooms once a year in the early spring
Best time to plant: spring, summer
Best type of soil: clay, loam
Companion plants: daylilies, coreopsis, yarrow
Toxicity level: non-toxic for humans and petsÂ
Invasive species: potentially invasive
