Learn which plants thrive in your Hardiness Zone with our new interactive map!

How Long Does It Take a Moonflower to Grow & Bloom?

By Veronica Smith-Jennings
Plant moonflower vines near a trellis or as a groundcover.
Jupiterimages/Goodshoot/Getty Images

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.

Time Frame

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.


About the Author


Veronica Smith-Jennings is a former teacher who started freelance writing in 2003 and has been published in regional parenting magazines as well as on various websites. Her writing interests include home renovation and gardening, politics, education, sports and early childhood development. She has a Master of Arts in English education and a Bachelor of Arts in English.