Days To Germination: 15-30 days
Optimum Soil Temp. for Germination: 65-70F
Planting Depth:  1/16 inch
Spacing, Seed: 1 inch
Spacing, Plant: 12-24 inches
Plant Height:  24 to 60 inches
Light: Full Sun

SOWING: Start seeds indoors 4-6 weeks before last frost. Or plant outdoors in well-drained soil in early spring, after all danger of frost,  when soil is  65-70F. Cover seeds with 1/16 inch of soil.

GERMINATION: 15-30 days, depending upon soil and weather conditions.

THINNING AND TRANSPLANTING: Transplant when young seedlings are about 2 inches high and after all danger of frost has passed. Space 12-24 inches apart.

SUGGESTIONS: Keep soil moderately moist during germination. A prolific reseeded.

EVENING PRIMROSE
Common
Oenothera lamarckiana

Biennial (Two year plant) and Perennial (Permanent plant). Large, 2-3 inch , clear yellow flowers on tall, sturdy spikes. The showy yellow flowers open in mid-afternoon through the evening. The fragrant blossoms also open on cloudy days. Can tolerate heat and drought. Self sows freely. Can tolerate a variety of soils. Likes well-drained soil. Great as a background flower, in large containers, roadsides, and meadows. Can be grown throughout the United States.

• Plant Height: 24 to 60 inches
• Sunlight: Full Sun
• Bloom Period: Summer

Biennial - no blooms the first summer, but the plant will return and produce yellow flowers the second summer. This is a biennial that acts like a perennial once it's established because it generally multiplies in the garden by sowing its own seeds, often coming up year after year without further care.
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