Ipomoea alba, known as white morning-glory or moonflower or moon vine, is a species of night-blooming morning glory, native to tropical and subtropical regions of the New World. It is widely cultivated as an ornamental plant for its flowers.
Ipomoea alba, commonly called moonflower, is native to tropical America. It is a tender perennial vine that is grown in St. Louis as a warm weather annual. It is noted for its fragrant nocturnal white blooms (moonflowers) and its deep green foliage. Although it will grow to 70’ or more in tropical climates, it typically reaches 10-15’ in a single season as an annual. Milky-juiced, somewhat prickly, twining stems are clad with large, rounded, broad-ovate, deep green leaves (4-8” long) with cordate bases. Fragrant, white flowers (to 6” diameter) bloom at dusk from mid-summer into fall. Flowers unfold in early evening before nightfall from attractive spiraled tubular flower buds. Flowers remain open all night and eventually close before noon the following day. Flowers attract night-flying moths. This plant is synonymous with and formerly known as Ipomoea bona-nox and Calonyction aculeatum.