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Any advice for fast growing screening trees or shrubs, 15' minimum #739646

Asked March 18, 2021, 2:24 PM EDT

Hi, I have a 120'ish of fence that I would like to put screening in front of. I understand it may be better to plant different trees than just one type. Also not really interested in Arborvitae. I would like it to block the houses in the distance so I only see sky and mountains. I would like something fast growing. Any thoughts would be really appreciated! Thanks!! Stacy

Clackamas County Oregon

Expert Response

Camellias (Camellia spp.) are seldom thought of as screening plants. Although they are relatively slow-growing shrubs, they mature to dense evergreens and are very useful for screens in partial or dappled shade. Their height is variable depending on the cultivar, but many grow 6 to 15 feet tall or more. For more information, please see HGIC 1062, Camellia.

Chinese fringe-flower (Loropetalum chinense) is a fast growing evergreen that quickly reaches 6 to 10 feet tall. White-flowered cultivars can eventually reach up to 15 feet tall. Purpleleaf Chinese fringe-flower (Loropetalum chinense var. rubrum) varieties are often smaller, but 'Zhuzhou Fuchsia' grows 8 to 10 feet tall with hot pink flowers in spring. The burgundy leaves help make it a good color substitute for red tips. Both types grow well in sun or part shade and are adaptable to pruning. For more information, please see HGIC 1085, Loropetalum.

Most tea olives make excellent, dense evergreen screens or hedges in sun or medium shade. Holly tea olive (Osmanthus heterophyllus) grows 8 to 10 feet tall or more, and is more narrow than the other species mentioned here. Fortune's tea olive (O. x fortunei) matures at 15 to 20 feet tall. Fragrant tea olive (O. fragrans) can reach as much as 20 to 30 feet tall near the coast, but will be smaller in the upstate. All of the tea olives have exceptionally fragrant, small, white flowers in fall. Fragrant tea olive also has yellow and orange-flowered cultivars. For more information, please see HGIC 1083, Tea Olive.

Carolina cherry laurel (Prunus caroliniana) is a fast-growing, upright evergreen that can reach 20 to 30 feet tall when grown as a tree. 'Bright 'N Tight' (sometimes sold as "Compacta") is more compact, with smaller leaves and tighter growth. It grows to a more manageable 10 to 20 feet tall, is best in sun or part shade, and tolerates heavy pruning. For more information, please see HGIC 1069, Laurel.

Japanese ternstroemia (Ternstroemia gymnanthera) is sometimes called "cleyera". It is an excellent substitute for red tip since it resembles it with red new growth in spring and has similar leaf texture. It grows slowly to 8 to 10 feet tall and 5 to 6 feet wide in shade or part shade.

Many viburnums (Viburnum spp.) make excellent evergreen screens. There are numerous species and varieties with a wide range of sizes. Viburnums are available for virtually any situation, and they will add to the landscape with flowers and berries. For more information, please see HGIC 1075, Viburnum.

Wax myrtle (Myrica cerifera) is excellent for difficult sites with its tolerance of sand, wind, salt, and poor soil. This broadleaf evergreen shrub or tree grows quickly to 15 to 20 feet high and wide, and is tolerant of pruning. It requires full sun. For more information, please see HGIC 1076, Wax Myrtle.

Plum yew (Podocarpus macrophyllus), Florida anise (Illicium floridanum), taller varieties of yaupon holly (Ilex vomitoria) and many other plants can be considered when looking for appropriate red tip photinia alternatives.

Mixed Screens

It is important not to search for only one plant species as a substitute for photinia. The widespread planting of a single plant species could possibly lead to a repeat of the problems that have affected red tips, American elm, and other plants.

Planting a mixed screen, where multiple species of plants are grouped together in small clusters is the best solution. Groups of three or five plants of a single species can be planted in a single row where space is limited or in an alternate layered (staggered, two-row) planting where more space is available.

Mixed species screens help to prevent the spread of pest problems from one plant to the next. The advantage to planting several rows of staggered plants is better air circulation around the plants. This reduces the humidity level around plants thereby reducing the incidence of disease problems while still achieving a full screen.

In a mixed screen, even if one species develops problems that are so severe it has to be removed and replaced, the entire planting does not have to be sacrificed. Mixed screens can also be far more interesting and rewarding throughout the seasons, offering the chance to turn a basic screen planting into a beautiful part of the landscape.

Hope this helps!

Chris Rusch Replied March 18, 2021, 7:44 PM EDT

Thanks so much for the advice! I really appreciate your thoughts on Mixed screens. I will make that happen. Would you have any thoughts on fast growing trees that I might plant? Many of the shrubs seem beautiful but probably too short. I really need 15' minimum.

Thanks!

Stacy 

The Question Asker Replied March 19, 2021, 6:57 PM EDT

Hollies are my personal favorite for a long lived, attractive, low maintenance living fence. Several varieties are available that work well for hedges and screening because of their upright growth habit. They produce dense, dark green foliage year around and red berries in the fall that persist through the winter. Hollies grow best in sun to part shade with well-drained soil, are drought tolerant once established, are not often damaged by deer.

Douglas fir, Pseudotsuga menziesii has the noble, spire like shape that evergreen lovers admire so much. While often used as a featured specimen, it also looks great massed as a screen in evergreen landscaping. Douglas-fir does not like hot, dry winds but will do excellent where there is moisture—in the soil and in the atmosphere.

Juniperus virginiana is so adaptable you'll find it growing on dry, rocky slopes and at the edges of swamps. This densely branched juniper is great for urban screens and rural windbreaks, with rich green summer foliage turning ruddy brown-green in winter.

Native pines, Pinus ponderosa, lambertiana, contorta, or monticola can grow 50 to 80 feet tall and 20 to 40 feet wide, so they need plenty of room. There are columnar varieties that max out at 20 feet in height and 14 feet in width, making them suitable as screens.

Abies concolor is quite adaptable. Also known as white fir, it's a great choice for hot, dry conditions and winter cold. However, it grows best with an evenly moist soil that has good drainage.

Deodar cedar Cedrus deodara is very adaptable, grows fast, and has dense branching in youth. In short, it's perfect for a screen or as part of evergreen landscaping.

Leyland cypress Cupressocyparis leylandii is a popular evergreen tree for privacy screens with its columnar shape and year-round color. If the feathery, blue-green foliage doesn't grab you, there are cultivars with yellow, gray, or bright green foliage. Leyland cypress grows very fast and matures at 60 to 70 feet if not topped at an early age. It likes moist, well-drained soil but takes full sun or part shade.

Taxus is the tree of immortality, with ancient specimens living thousands of years. In evergreen landscaping, yews are often used as hedges and foundation plantings. The dark green foliage and colorful red berries are a welcome sight in winter, and birds love the shelter of yews, too. Yews are tolerant of sun or shade as well as poor, dry soils, but they won't take soggy soil. Heights vary according to species and cultivar, with yews growing anywhere from 2 to 60 feet tall.

Chris Rusch Replied March 20, 2021, 12:15 AM EDT

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