Plant Profile: Ipomoea alba

Moonflowers are delicate perennial vines typically cultivated as annuals in North Carolina, named for their stunning blooms that open at night. These plants require a support system, such as a fence, arbor, or trellis, to thrive. They feature heart-shaped leaves measuring about 8 inches and produce large, fragrant white flowers that bloom after sunset. For the best experience, consider planting them in a cottage or patio garden designed for nighttime enjoyment, where you can appreciate both the beauty and aroma of the flowers while observing bats pollinating them. If you wish to keep the plant through the winter, grow it in a sizable container and bring it indoors during the colder months.

To propagate moonflowers, begin 4 to 6 weeks before the last frost of spring. You can enhance germination by soaking the seeds overnight in warm water or by gently nicking the seed coat with a file. These vines are sensitive to cold and frost, thriving in moist, well-drained soil. Alternatively, you can propagate them through stem cuttings. The growth of the vines is initially slow but accelerates significantly with the arrival of warm weather.

In terms of pests and diseases, moonflowers generally do not face any serious issues.