Japanese raisin tree owes its common name to its fruits and their stems, which bear a striking resemblance to raisins when they ripen in late summer. Indeed -- they've long been used in East Asia for culinary and medicinal purposes. It also makes an outstanding small ornamental tree, thanks to its handsome broadly oval leaves, its scaly exfoliating bark, and its fragrant late-spring flowers. Seedlings, in deep 3.5-inch pots. Tree photo: "Hovenia dulcis Thunb." licensed under CC BY-SA 3.0 ; Photo of fruit: Plant Image Library, licensed under CC BY-SA 2.0