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Winterberry holly (Ilex verticillata) is a deciduous shrub that is native to the eastern U.S. It is a great addition to the landscape because it produces bright red berries that persist through the entire winter and into spring. Winterberry holly leaves are dark green and elliptical, about two to three inches long. Greenish-white flowers appear on female plants in spring, which, if properly pollinated by a male plant, produce a dense crop of bright red berries in the fall. A slow-growing shrub with a rounded upright growth habit, winterberry typically grows 3 to 15 feet tall and readily suckers and spreads to form large thickets. It is generally planted in late summer to early fall, though spring planting is usually successful, as well. Winterberry holly is often associated with the Christmas holiday season and their berry-laden stems are used to add color to evergreen arrangements. Description from The Spruce
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