white evening primrose
Oenothera speciosa
Cycle:
Herbaceous Perennial
Watering:
Minimum
Propagation:
Seed Propagation,Cutting,Division,Layering Propagation
Hardiness Zone:
4 - 9
Flowers:
White maturing to rosy pink Flowers
Sun:
Full sun
Leaf:
Yes
Leaf Color:
green
Growth Rate:
Low
Maintenance:
Low
Salt Tolerant:
Yes
watering
White evening primrose (Oenothera speciosa) should be watered when its top inch of soil is dry. Depending on the environmental conditions, water every 3-4 days during spring and summer, and every 5-10 days during fall and winter. Be careful that the plant does not sit in water for long, as this may cause its roots to rot. Generally, it is best to water deeply, instead of light and frequent watering.
sunlight
White evening primroses prefer full-sun exposure throughout the day. This plant should receive at least 6 hours of direct sunlight each day to thrive. In zones 8 and 9, this plant can even handle some additional, indirect light during the hot afternoon hours. During the warmer months, white evening primroses should get full sun from approximately 9 am to 4 pm. During the cooler months, full-sun should be restricted to only the morning hours to protect the plant from potential frost damage.
pruning
White evening primrose should be pruned just before new spring growth appears, which typically happens from late winter to early spring when daytime temperatures start to warm up. Pruning should be done lightly and judiciously; just remove the oldest, most dead or damaged stems or leaves. Doing too much pruning can interfere with flowering and reduce the overall health of the plant. Deadheading or removing faded flowers can also help encourage future blooms.
