(Ipomoea alba) Moonflower Vine seeds have been available to US gardeners since 1806. By day, this unforgettable vine displays beautiful dark green heart shaped leaves. As night falls, giant pure white blooms (6 inches across) open to release a sweet fragrance. Traditionally grown near the front porch so that the fragrant blooms can be enjoyed through the night. Most/full sun - Climbs to 12 feet - Grow as an annual (tender perennial) - 10 seeds.