The individual leaves are small, blunt, about 1/16 inch long, and appressed against the stem. Why do we need this? Japanese cryptomeria tends to be a pyramidal or conical tree with a heavy central trunk. The tree will tolerate both limestone and slightly acid soils, light shade, and city conditions. The cones are cylindrical, 2 to 2½ inches long, and about 1 inch in diameter. View our privacy policy. The flowers, which appear in June, are white, and about ¼ inch in diameter in a cluster of about 3 inches. growing to 30' tall this native evergreen Rhododendron sports large pink flowers in mid-Summer and supports a wide array of wildlife. The dark green needles are rather stiff and pointed. It is frequently used as a specimen, background, or windbreak tree. In larger areas it can be used as a hedge or border planting. Over the years several cultivars have been developed. The leaves are dull green on top with a lighter green below. Hardiness zone--5. The leaves are very small, about 1/16 inch long, needle-like, and pressed against the twig. Good growing conditions will improve its ability to withstand hard winters. Usually, this annual drop of foliage goes unnoticed because new leaves and needles conceal the inside foliage that has turned yellow or brown. In winter the color changes to a bronze. Hardiness zone--3. Best growth is obtained in a rich, moist, well-drained soil that is slightly acidic and where the plant gets full sun. The coarse-textured foliage is quite broad and elliptic, about 1 inch wide and 2 to 4 inches long, with scattered spiny teeth along the margin. A proper blend of compatible flower colors can create a very impressive landscape design. These needles come in clusters at the tips of the smaller twigs and radiate outward, similar to the framework of an umbrella. Evergreens planted in these areas get practically no direct sunlight during the growing season. Hardiness zone--5. Since these plants retain a covering of foliage during the winter, they continue to lose moisture even after deciduous plants drop their leaves. This article explains hardiness and site requirements, landscape use, and characteristics of selected evergreen plants. The individual leaves are rectangular, 2 to 3½ inches long, with three prominent spinelike teeth at the tip and several spines along the margin; the color is deep green. Pennsylvania native trees, shrubs, vines, herbaceous material, seeds. Some plants are 8 feet tall with an equal spread; however, most mugo pines are much smaller. It will not do well when exposed to dry winter conditions. It can be maintained within the bounds of the average landscape planting, but it may grow as tall as 6 to 8 feet with a spread of 4 to 6 feet. Only the female plants set fruit. Hawthorns. This plant is quite tolerant of most soil conditions. Most of the needles are arranged on the upper portion of the stem. Most winter injury occurs when both the plant and soil are frozen. Depending on the cultivar, leaf color will range from gray-green to blue-green. Direct sunlight is not available to plants. It will grow in poor soil with a high pH but must have full sun for best results. This tree frequently develops a broad pyramidal shape with irregular branches that often become pendulous with age. Junipers will adapt to most soil conditions and tolerate drier conditions than most plants. With age it becomes more open, rather irregular, and high branched. If enough moisture is lost before it can be replaced from the soil, the plant may dry out and die. Leaves are broad, elliptic, from ¾ to 1½ inches long, and dark green in summer. Most of them evergreen, most of them deer resistant. Some of the smaller forms can be used near buildings, where their structural form is not too harsh. It prefers a deep, moist, and well-drained soil in either full sun or partial shade. 'Moerheimii' is a dense compact plant with a somewhat irregular shape and deep blue color. It does need adequate moisture all year and good drainage. Feathery needles of Eastern White Pine soften the landscape. This plant grows slowly and is compact, with a maximum height of 2 to 3 feet. The branches tend to arch to the ground, and the stems produce a three-part spine that may be more than ½ inch long. 'Wiltoni' is a very flat form with trailing branches. Quercus alba. The leaves are approximately ⅛ inch long, light green in the summer, and light brown in winter. You can submit trees for consideration for champion status to this website. Plant in full sun to part shade in moist soils. As the older foliage dies, it tends to remain on the plant for several seasons, which results in a brown inner portion that can be unsightly. The length of individual needles is about 1 inch. Avoid dry and windy planting sites. These plants may suffer from constant competition with other tree roots for available soil moisture. Pines and most other needle-bearing evergreens drop old foliage in the fall. These leaves are rather stiff and leathery in appearance. Remove the flower clusters as soon as they fade. Hardiness zone--6 (zone 5 with winter protection). You must have JavaScript enabled in your browser to utilize the functionality of this website. Japanese yew and many of its cultivars are widespreading, dense, with upright growing branches. Avoid using it in a windy location. It tends to be round and open, with upright spreading branches. This is a popular and widely planted shrub with semi-evergreen properties. The fruit is ovoid, about ⅓ inch long. Light pruning each season will help stimulate new foliage on the outer portion of the plant to cover the dead inner foliage. Young plants are dense, pyramidal, and columnar. It does not tolerate excessive drought in either summer or winter. Yearly pruning will help maintain a more dense and compact shrub. Each needle is blunt and rather flat, with blue or blue-green color on both sides. (It may tolerate colder temperatures when protected from strong winds.). It has a rounded and slightly dense form with rather stiff and upright branches. When considering the hardiness of any one plant in a location, it should be expressed as "a plant's ability to survive and thrive under the existing conditions of the site.". Some of the smallest types of Hinoki cypress trees … Cultural requirements are the same as those for the Japanese pieris. Bright yellow flower clusters, about 2 inches in diameter, are produced in late April. In contrast to some other pines, this one will adapt well to light, sandy soil, full sun, and tolerate salt spray. This very attractive spring-flowering shrub is frequently used as a specimen or border plant along with other evergreens. 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. Hot, dry weather will result in excessive browning of the inner foliage. The two here provide some interesting foliage color and texture. Specific height and spread on most cultivars is variable and nearly all are less than 2 feet high. Narrowleaf evergreen trees, however, will do better if they receive as much sunlight as possible. A lack of water for transplanted evergreens during a dry summer may also result in a leaf drop that is earlier and more severe than normal. The type of soil does not have much effect on the plant as long as the soil does not become dry in the summer. Some of these narrowleaf shrubs are being used for vertical accents. 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. A grass substitute for dry, shady areas under trees. New leaves or needles are produced each year, and some of the older inside foliage dies and drops to the ground. When used as a specimen or background plant, it gives a more graceful appearance than either the Colorado or Norway spruce. Not only are Magnolia trees diverse in leaf shape and plant form, and they include both evergreen and deciduous sorts. Hardiness zone--6 (possible zone 5 with winter wind and sun protection). Hardiness zone--4. As they mature the plants develop a somewhat flattened top with horizontal branches. In addition, excessive, as well as insufficient, amounts of water in the soil, shade, or exposure to wind influence hardiness. Rarely planted now because of the Hemlock Wooly Adelgid, this native evergreen and State Tree of Pennsylvania is losing popularity as a landscape plant. Inflorescence red-purple in very early spring. LEARN HOW TO STOP THE INVASIVE SPOTTED LANTERNFLY, Coronavirus: Information and resources for the Extension Community, Petite cones of Canada Hemlock. The bark on the plant is unique in that as it matures, older sections drop off to expose irregular patches of lighter-colored inner bark. Be sure this tree is situated in moist, acidic soils and that you have a male nearby to ensure a beautiful set of shiny red berries. Map of Pennsylvania showing the three plant hardiness zones across the state: Zone 5 in most of the northern tier and mountainous areas where plants must be hardy to -20°F to survive, Zone 6 in lower elevations where plants must tolerate temperatures down to -10°F, and Zone 7 in the southeastern corner of the state where plants may face low temperatures of 0°F. The flowers are inconspicuous and the fruit is a cylindrical cone 3 to 6 inches long and about 1 inch in diameter. 'Compacta' is a slow-growing plant with a dense, rounded form. By native, I mean native to the U.S. #3 of my top native evergreen trees – Candicans white fir Candicans concolor fir – Picture does not do it justice – Abies concolor ‘Candicans’ – The white fir withstands city conditions better than any other fir and is resistant to heat and drought. If there has been root damage in the planting operation, the plant may drop extra foliage to compensate for the imbalance. This valuable forest and timber tree has some value as an ornamental, but like other large narrowleaf trees it requires considerable space for proper growth and development. Hardiness zone--5. Leatherleaf viburnum is a large plant, 10 to 15 feet high with an equal spread. The flowers are inconspicuous, but the cones are about 1½ inches long and ¾ to 1 inch in diameter. Scarlet firethorn can be planted in most types of soil and does well if the soil dries out slightly in summer. During severe winters it may drop most of its leaves, but it should recover without permanent damage. Rarely planted now because of the Hemlock Wooly Adelgid, this native evergreen and State Tree of Pennsylvania is losing popularity as a landscape plant. Plants introduced from similar climates should be equally hardy. The trees will grow best in moist, loamy, well-drained soil that is slightly acidic. Trees that retain green foliage for three to five years or more are spruce, fir, hemlock, and yew. 'Hatfieldii' is an older cultivar with a dense, broad pyramidal shape up to 12 feet high. The plants tend to grow larger than most gardeners expect, but they can be maintained at heights of 6 to 8 feet and spreads of 5 to 8 feet. native wildflowers or trees to name a few. Hardiness zone--3. Under most conditions Scotch pine will reach a height of 30 to 50 feet and have a spread of 30 to 35 feet. 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