oonflowers in the garden do not need much ground space, as they readily climb upward. Provide a trellis or other support for the vigorous vines. Growing moonflowers can reach up to 20 feet, happily twining around anything within their reach. You can pinch back growing moonflowers at the top of the vine, as a part of your care for moonflowers, to force flowering downward. Moonflower plants grow easily from seed when planted in somewhat fertile soil, but they are adaptable to other soil conditions. In more northern areas, seeds can be started six to eight weeks before the soil outside has warmed. Plant moonflowers outside when outdoor temperatures are consistently 60 to 70 F. (15-20 C.) Some growers think the crowding of roots in the pot encourages an earlier bloom on moonflower plants. Moonflower vines can grow in large containers or you can plant them in the ground. More moonflowers can be started from root division of existing plants. Mulch the roots of moonflowers in southern zones, and dig them up for winter storage in colder areas. Light requirements for growing moonflowers are adaptable, but more sun equals more blooms.
Read more at Gardening Know How: Moonflower Plants: Tips For Growing Moonflowers In The Garden http://www.gardeningknowhow.com/ornamental/vines/moonflower/growing-moonflowers.htm