This fungus primarily affects the root system and reduces plant vigor. American holly. opaca. This tree is hardy in USDA plant hardiness zones 5 through 9. American holly trees are terrific landscape plants. Needs a male pollenizer such as Blue Prince Holly … An Equal Opportunity University. Click here, then click on your county either on the map or from the list of counties below it. Plant American holly trees in spring through summer from potted nursery plants. There ar… Do not plant bare root trees. For general undergraduate student information, contact Dr. Rick Durham at (859) 257-3249, or rdurham@uky.edu. Also called by their scientific name “ilex opaca,” American Holly is native to south … It was believed that planting hollies near buildings would provide protection from witchcraft and lightning. So be patient. American holly planting is easy as long as you choose containerized or balled and burlapped specimens. Holly trees and shrubs are sometimes deciduous, but more often evergreen. Their shapes vary from rounded to columnar to pyramid-sh… Though it's generally a low-maintenance shrub, you will need to prune your plant in order to … Zones: 5-8 Botanical name: Ilex crenata Shrub type: Evergreen Native: Asia Growing conditions: This evergreen shrub or small tree can adapt to a wide range of soil conditions and is tolerant of drought, shade and urban pollution. Introduction: American holly is a broad-leaf evergreen with a beautiful shape, but with a variety of insect and disease problems. The best location for planting holly bushes is in well-drained but not dry, slightly acidic soil in full sun. It is the female that produces the red berries. Other cultivars with this unique color include: ‘Lake City' and ‘Manig.'. Black Root Rot: Black root rot is caused by the fungus Thielaviopsis basicola. Hollies, both tree and shrub varieties, are frequently included on deer-resistant plant lists. From coastal Massachusetts to Central Florida, the Greenleaf American Holly Shrub delights with evergreen foliage in a sleek, pyramidal form. American holly (Ilex opaca) is an evergreen shrub or small tree that grows to 15m in height.It can be easily recognized in any season by its alternately arranged, thickish, evergreen leaves that have … includes a diverse group of shrubs and trees. American holly trees can take all types of soil but prefer slightly acidic, good draining, sandy soil. Maintains dense, upright, conical shape with little or no pruning. It thrives in a … Infected roots are dark brown to black, usually starting at the root tips. Very effective. American holly American holly is a broad-leaved evergreen tree reaching 40 to 50 feet high, densely pyramidal in youth becoming more open and symmetrically conical with age. It is a small tree or shrub with striking evergreen foliage that's perfect for a privacy hedge. Branches and eventually the entire plant dies. The American Holly is popular as a long privacy hedge. Holly, scientifically known as Ilex, are attractive evergreen shrubs and bushes that come in many various shapes and sizes which offer many uses in landscape design. Threatened and Endangered Information: This plant is listed by the U.S. federal government or a state. Prune them only if they form irregular branches or if you want to shear them into a hedge. Find more gardening information on Gardening Know How: Keep up to date with all that's happening in and around the garden. Most of us are family with holly shrubs in the landscape and growing American holly trees (Ilex opaca) is a relatively easy endeavor. laxiflora Wikimedia Commons has media related to Ilex opaca. Hollies are dioecius, so a few male plants are needed for a female plant to produce berries. Bright red berries combined with glossy, dark green foliage on this handsome shrub. Consider visiting your local native plant … They are ideal for use in home … The best cultivars are selected for bright fruit displays, attractive leaves and a dense habit. It is also used for knife handles and black piano keys. They are ideal for use in home … Too, if a large holly as outgrown the … They do not succumb to many pests or diseases. Holly plants (Ilex spp.) It can also be dyed and used as a substitute for ebony. American holly trees are dioecious, so be sure to plant a male tree as well as a female to ensure fruit production. N-318 Ag Sciences Center University of Kentucky Lexington, KY 40546-0091, Fax (Lexington): 859-257-2859       (Princeton): 270-365-2667, For questions about home gardening, landscaping or commercial horticulture production, please contact your county extension agent. These attractive, broad-leaf evergreen trees grow 15-50’ tall. The holly plant, with the shiny dark green leaves and prickly edges have been mentioned from pagan times when the Druids adorned themselves with holly as they entered the woods. American holly is a dioecious plant, with staminate (male) and pistillate (female) flowers on separate plants. Black Root Rot: Black root rot is caused by the fungus Thielaviopsis basicola. The dark green, elliptical leaves have several spiny teeth along the leaf margin. Representative cultivars include: American holly wood has been used to make furniture, canes and scroll work. It is native to the eastern and central U.S., most frequently found in moist woods, forest bottomlands and swamp peripheries plus some coastal dunes (e.g., Cape Cod down the Atlantic Coast) from Massachusetts to West Virginia to Ohio to southeastern Missouri south to Texas and Florida. American holly. These are tough trees! 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