White Four O'Clocks are the ethereal centerpiece of any moon garden, unfurling delicate trumpet-shaped flowers in the late afternoon to release a sweet, jasmine-like fragrance that transforms evening hours into something magical. This old-time garden favorite reaches 12 to 36 inches tall and flowers in about 75 days, thriving in full sun across hardiness zones 7 and warmer. The snowy white blooms seem to glow in twilight, creating an enchanting atmosphere that makes these plants especially rewarding when planted near bedroom windows or outdoor gathering spaces.
Full Sun
Moderate
7-7
36in H x 24in W
—
High
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Plant these near a bedroom window or breakfast nook to catch their evening performance: flowers close by morning and reopen reliably each afternoon, releasing a sweet fragrance reminiscent of jasmine. The snowy blooms appear to luminisce in moonlight, earning their place as the heart of a moon garden where they transform ordinary spaces into somewhere genuinely magical. Their long blooming season and willingness to reseed make them a low-maintenance treasure for gardeners seeking both beauty and scent in evening hours.
These flowers are grown primarily as ornamental evening bloomers, valued for creating fragrant moon gardens and adding nighttime interest to garden beds, borders, and container plantings. Their strong evening fragrance and glowing white petals make them especially suited for placement near windows, patios, or outdoor dining areas where their scent and appearance can be enjoyed during evening hours and garden parties.
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Start seeds indoors 4 to 6 weeks before the last spring frost at temperatures between 65 and 80 degrees Fahrenheit. Maintain consistent moisture until germination, then provide bright light and good air circulation to prevent damping off.
Transplant seedlings outdoors after all danger of frost has passed and soil has warmed, hardening off plants gradually over 7 to 10 days. Space plants 12 inches apart in rows 18 inches apart in full-sun locations.
Direct sow seeds outdoors after the last frost date when soil temperatures reach at least 65 degrees Fahrenheit, pressing seeds lightly into the soil surface.
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