pennsylvania native evergreen trees

Young plants are dense, pyramidal, and columnar. Hardiness zone--5. Small clusters of purple or crimson flowers develop in mid-June or early July. Periodic heavy pruning will help restore density to larger, overgrown plants. Under ideal conditions it develops into a large, irregular spreading plant that becomes open and loose with age. Rarely planted now because of the Hemlock Wooly Adelgid, this native evergreen and State Tree of Pennsylvania is losing popularity as a landscape plant. It is not planted for either flowers or fruit. Leaves are narrow and arranged along the sides of the stems. JavaScript seems to be disabled in your browser. It is not a very dense plant. LEARN HOW TO STOP THE INVASIVE SPOTTED LANTERNFLY, Coronavirus: Information and resources for the Extension Community. Young plants are broad, compact, and pyramidal. Organic matter also helps promote good drainage in the soil, which is essential for the optimum development of most evergreens. If there has been root damage in the planting operation, the plant may drop extra foliage to compensate for the imbalance. In larger areas it can be used as a hedge or border planting. Cultural requirements are the same as those for the Japanese pieris. The plant is dense and pyramidal with somewhat horizontal branches coming from the main trunk. In winter, the foliage turns reddish green. It can be planted in full sunlight or light shade, but it may show signs of winter injury when not protected from severe weather. Our Eastern deciduous forest ecosystem tends to support those plants that lose their leaves in winter, so they don't become overburdened by the weight of the snow or slowly desiccate exposed to dry winter winds. As the plant matures, it becomes more open. There is, however, a slight variation in the foliage color of the creeping juniper. It looks nice in mass plantings, as a hedge, in topiary designs, and in formal gardens where a structured clipped plant is needed. The dense foliage consists of clusters of two needles each. The flowers are yellow-white and appear in mid-May in clusters 4 to 6 inches across. It reaches its ultimate 6-12" tall in full to part shade with moist soil, but will grow in nearly any part of your garden. The upper surface of the leaf is a deep green and the lower surface a lighter green. Appears as a tuft of grass. The fruit is a cone 2 to 3 inches long and about 2 inches in diameter produced in groups of two and three per stem. 'Wiltoni' is a very flat form with trailing branches. It can be used for a low border shrub or for massing where its display of spring flowers will add interest. Yellowing and dying of inside foliage seldom indicate real trouble. The planting site can have partial shade or full sun, but it should provide some wind protection. The flowers are not easily seen, but the cones are narrow, cylindrical, and up to 6 inches long and about 1½ inches in diameter. Large balled and burlapped, and container sizes available. The foliage on most of the plants is about 1/2 inch wide and up to 1 inch long, blunt, and arranged around the stem to give a rather dense cover of foliage. Where space does permit, it can be used as a specimen or accent plant. The Pennsylvania state tree is the Eastern Hemlock, an evergreen tree that grows up to 175 feet tall on a straight trunk. Young plants tend to be pyramidal and dense, with branches to the ground. It they are planted to form a low hedge, a regular shearing and pruning program will be needed to retain the shape and form of the hedge. Individual leaves, produced along each side of the stem, are ¾ to 1½ inches long and slightly curved. Hardiness zone--5. However, if you are willing to monitor your trees and protect them if needed in order to save this tree in Pennsylvania make sure you give it the cultural conditions it needs. Individual flowers range from 2 to 2½ inches across and are produced in clusters up to 6 inches in diameter by late May. Under landscape conditions, an American holly will grow 15 to 20 feet high and spread from 6 to 10 feet wide, if unpruned. Notes: Locations. Heading out to a farm to pick out a Christmas tree is a long-treasured tradition that not everyone can enjoy this year. The fruit is a cylindrical cone that is tapered at each end, 2 to 4 inches long, and about 1 inch in diameter. The upper surface is a deep green color and wrinkled in appearance. Foliage and flowers make this plant ideal for shrub borders or as accent specimens. The center area of the plant will fill in with periodic pruning of the longer stems. The fruit is a brown capsule, which should be removed as soon as the flower fades. More compact than a common boxwood, this plant is only 2½ to 3 feet high. With proper selection and placement of deciduous plants, you can have a garden that is continually changing with the seasons. Includes botanical, habitat,pests, and disease information as well as commercial, native american and modern uses. Its height of 40 to 60 feet and spread of 20 to 25 feet, however, limit its usefulness around the home. 'San Jose' is a very dwarf cultivar (10 to 12 inches high) that will spread 5 to 6 feet with irregular branches; its color is a gray-green. Remembering that a healthy system, one that supports a diversity of animal life, has 4 layers - the herbaceous or groundcover layer, the shrub layer, the understory layer and the canopy layer, here are some native evergreen plants that will fill each level. Adequate space should be allowed for development since scarlet firethorn often grows from 6 to 15 feet high with an equal spread. Most cultivars of Colorado spruce have been selected for their intense blue or silvery-blue color of foliage. The flowers are inconspicuous, but the cones are very prominent; they are approximately 3 inches long and 2 inches in diameter and are produced on the upper side of the stem. It is a pyramidal tree in all stages of development, with soft, graceful, and slightly pendulous branches that produce an open form. Why do we need this? This is another large narrowleaf tree best suited to larger properties and open spaces. Young Austrian pines have a dense pyramidal form, but as they mature they become broad, slightly flat-topped trees. 'Prostrata' is a rounded, dwarf form. The branches in the upper third of the tree tend to point upward, but from the center of the tree to the ground, branches tend to droop toward the ground. 'Plumosa' is an older cultivar that is wide, dense, and compact, with a purple tint in winter. They do best in full sunlight but tolerate some light shade. Usually, this annual drop of foliage goes unnoticed because new leaves and needles conceal the inside foliage that has turned yellow or brown. Open spaces between the main branches give an irregular pattern to the plant as it matures. This fruit, however, will frequently develop on the plant without pollination of the female flowers. The cone is tapered at both ends and is 2 to 4 inches long and 1 inch in diameter. Hardiness zone--3. Photo: Kathy Salisbury. Evergreens can be divided into two main groups--narrowleaf and broadleaf varieties. Best growth and development occurs in deep, rich, moist, and well-drained soil where the plant gets full sunlight. It develops into a rather informal plant with branches that arch back to the ground. Plants Native to Western Pennsylvania. Effects of normal leaf or needle drop may be more striking a year or two after evergreens are transplanted. One of the more hardy varieties is 'Koreana'. Although this plant is not available in most garden centers, there are many cultivars that are. Most broadleaf evergreens will not do well when subjected to the hot winter sun associated with a southern or southwestern exposure. 'Hoopsii' has a deep blue color and dense pyramidal form. Among the many cultivars are 'Brownii', a male type with a dense, rounded form that grows 6 to 8 feet high with an equal spread; 'Densiformis', a dense, shrub-like plant that is twice as wide as it is high; and 'Everlow', a dense, low-growing spreading cultivar up to 2 feet high with deep green foliage. In all stages of development this tree is considered quite picturesque. Often used for shade and timber, these trees can grow very tall quickly. 10 native trees that make excellent landscape choices Trees shade the yard in summer, add oxygen to the air, and create beauty with their flowers and … Pennsylvania native plants are plants that thrived in the area before settlement. Shrubs. This is another popular broadleaf evergreen. Add year-round color, texture and structure with evergreen trees. Both the flowers and fruit are of little ornamental value. It has green foliage and can grow 15 feet high with a spread of 20 feet. 'Thayerii' is a slow-growing older selection with wide, spreading branches that extend to the ground. The tree does not do well in exposed locations or areas exposed to high levels of air pollution. Hardiness zone--5 (with some protection from winter wind). With some pruning each season, however, you can maintain a somewhat smaller plant. This narrowleaf, shrub-like tree can be used in different landscape settings. Here are a few cultivars with different flower colors: 'America' has a broad form with clear red flowers; 'Cunningham' is a rather low-growing form with white flowers; 'English Roseum' is more upright and vigorous with light-rose-colored flowers; 'Lee's Dark Purple' is compact with dark purple flower buds that open into a medium purple flower; and 'Mrs. Avoid dry and windy planting sites. Summer color is dark green and winter color varies from green to purple-green. Full shade is found under low-branching trees with heavy foliage or under the overhang of a building. 'Densa' is a very dwarf, low, and compact shrub with dark green foliage. As a specimen or background plant it adds a soft green color and fine texture to the landscape. They have the same properties and limitations as the species, except for size and texture. It tends to be too structured for foundation plantings and at maturity may reach a height of 35 to 40 feet (but usually less) and have a spread of 10 to 15 feet. It generally grows as a multiple-stem shrub in border plantings, but it can be used as a single plant with smaller species around the base. This low-growing narrowleaf shrub can be used in a variety of landscape settings. On the other hand, where there may be a need for a specific plant shape you can select either the Japanese holly or littleleaf boxwood, which can be pruned or sheared to form a low hedge. 'Argenta' has a silvery-white foliage. The fruit persists into the winter and will serve as a food source for some birds. It frequently reaches heights of 40 to 50 feet with a spread of 25 to 30 feet. It will not do well when exposed to dry winter conditions. This type of small cypress tree is native to Japan and it has a number of beautiful dwarf cultivars. This broadleaf semi-evergreen can be used in border plantings or as an accent plant. The leaves are smooth and shiny dark green above and light green below. Audubon Pennsylvania . Hardiness zone--6 (possibly colder zones with adequate winter protection). Good growing conditions will improve its ability to withstand hard winters. When used as a specimen or background plant, it gives a more graceful appearance than either the Colorado or Norway spruce. The needles are 4 to 6 inches long, quite stiff, and dark green all year. Where its size is no problem, you can plant it as a specimen, background plant, or as a windbreak. Hardiness zone--3. Hardiness zone--6. Under most landscape conditions it will reach a maximum height of 20 to 30 feet with a spread of 10 to 15 feet. 'Moerheimii' is a dense compact plant with a somewhat irregular shape and deep blue color. Not only are Magnolia trees diverse in leaf shape and plant form, and they include both evergreen and deciduous sorts. 'Green Island' has light green leaves that are flat and up to ¾ inch long. New leaves in the spring are bronze, turn to a deep green in summer, followed by a purple cast in the fall. Its colorful foliage and flowers are other pluses. Hardiness zone--6. Depending on the cultivar, leaf color will range from gray-green to blue-green. Among the cultivars that may fit your particular needs is 'Convexa'. The area should not be subject to seasonal dry weather in either summer or winter. These plants will tolerate severe pruning to maintain a dense form. Austrian pines adapt to site conditions better than most of the pines. 'Procumbens' reaches a height of 6 inches but spreads to 12 or 15 feet and features blue-green foliage. Chinese juniper is seldom used as a landscape plant because of its size and form. A Serbian spruce is a very narrow pyramidal tree with short ascending branches near the top and drooping lower branches. Cones are often produced in groups of two or three along the stem. For best growth, this plant needs deep, moist, well-drained soil that is acidic. 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