How Long Does It Take a Moonflower to Grow & Bloom?
Plant a moonflower vine near an outdoor space that you use at night--you'll see the blooms open as dusk falls and enjoy the blooms' appealing scent. This annual grows easily, even in difficult soil, and pairs nicely with morning glory vines which bloom during the day.
Moonflower seeds germinate in 4 to 10 days. By the time of the first frost, they can reach up to 15 feet. They will bloom from mid-June to mid-September.
Nick the seeds or soak them overnight before planting to expedite germination. They need temperatures of 65 to 85 degrees Fahrenheit to germinate.
Begin the seeds 6 to 8 weeks before the last frost to get a head start on the growing season. This also allows you to make sure your moonflower vine achieves maximum growth and early blooms.