Another “moonflower” is Ipomoea alba, a night-blooming morning glory native to the tropical and subtropical New World that has likewise been cultivated elsewhere for its ornamental value. It is often referenced in Victorian literature as Ipomoea bona-nox, or the “night-flowering Ipomoea.” It is cited by this name in Mrs. Loudon’s The Ladies’ Flower-Garden of Ornamental Annuals, an 1840 compendium of “the most ornamental flowers in British gardens.”
Sometimes called the “moon vine,” I. alba is a climber, rather than a shrub. This opens up opens up some rather compelling aesthetic possibilities, as suggested by this advertisement from the 1886-87 issue of Popular Gardening and Fruit Growing: