Ulmus americana Valley Forge. This gives the tree a broad vase-shaped crown which, moreover, is characteristic of Ulmus americana. More from Deciduous … Acer campestre; Betula plat. continuer la lecture. The American Elm cultivar Ulmus americana 'New Harmony' was raised by the Maryland Agricultural Research Service and released by the United States National Arboretum in 1995, along with 'Valley Forge' Description 'New Harmony' is considered by some to have a more desirable form than 'Valley Forge' as it grows vertically on its own with a minimum of early training. L’arbre acquiert ainsi une couronne évasée étalée, caractéristiques de l’Ulmus americana. It typically grows to 60-70' tall. In nature. L’arbre acquiert ainsi une couronne évasée étalée, caractéristiques de l’Ulmus americana. Si vous recherchez une alternative, contactez-nous afin de connaître les autres possibilités. Various wilts, rots, cankers and leaf spots may also occur. Ulmus americana, commonly called American elm, is a medium to large deciduous tree, typically growing to 60-80’ (less frequently to 130’) tall with a vase-shaped, broad-rounded crown. At maturity this tree grows to form a stately vase-shaped crown. It requires regular pruning due to the somewhat wild growth. It has the traditional upright arching and vase shape habit and yellow fall color of the species. F: +49 (0) 2831 - 974 69 66 It is also very resistant to the elm leaf beetle, which is … In Missouri, it typically occurs in low moist ground and along streams throughout the state (Steyermark). F: +49 (0) 4483 - 930 50 14 Ulmus americana ‘Valley Forge’ is a medium to large, vase-shaped, deciduous tree, typically growing to 60-80 feet (less frequently to 130 feet) tall with a broad-rounded crown. This tree is also very vigorous, Reaching 30’ in 12 years. La couleur automnale est jaune dorée à jaune marron. E: geldern@vdberk.de This fast growing tree develops a vase-shaped, dense canopy that provides excellent shade. It is also susceptible to wetwood which is a bacterial disease that results in wilting and dieback. 'Valley Forge' seems to be more tolerant (96% resistant rate) of Dutch elm disease than 'New Harmony' (86% resistant rate), … Send by … 1. Le majestueux orme d’Amérique, autrefois si populaire comme arbre de rue. Academic disciplines Business Concepts Crime Culture Economy Education Energy Events Food and drink Geography Government Health Human behavior Humanities Knowledge Law Life Mind Objects Organizations People Philosophy Society Sports Universe World Arts Lists Glossaries. Ulmus Americana Valley Forge / Orme American Valley Forge Tolérant aux conditions urbaines, la sécheresse, avec une excellente résistance à la maladie hollandaise de l’orme. Older trees sometimes develop buttresses that expand their base. Photo: Msact, Wikimedia Commons. Le ‘Valley Forge’ peut atteindre de 10 à 15 m de haut et de large. Le ‘Valley Forge’ peut atteindre de 1 à 15 m de haut et de large. 2. Insect visitors include borers, leaf miner, beetles, mealy bugs, caterpillars and scale. Valley Forge Elm. In Missouri, it typically occurs in low moist ground and along streams throughout the state (Steyermark). The tree was released to wholesale nurseries without patent restrictions by the U. S. National Arboretum in 1995 after proving to have a resistance to Dutch elm disease. Ulmus americana, commonly called American elm, is a medium to large deciduous tree, typically growing to 60-80’ (less frequently to 130’) tall with a vase-shaped, broad-rounded crown. 'Valley Forge' has excellent resistance to Dutch elm disease. This deciduous tree typically grows to 60–80 feet tall with a broad-rounded crown. Family: Ulmaceae (ulm-AY-see-ee) Genus: Ulmus (ULM-us) Species: americana (a-mer-ih-KAY-na) Cultivar: Valley Forge: One member has or wants this plant for trade. May be used as a lawn, shade or street tree. Flowers give way to single-seeded wafer-like samaras (each tiny seed is surrounded by a flattened oval-rounded papery wing). Ulmus americana ‘Valley Forge’ American Elms Resistant to Dutch Elm Disease Standard. Category: Trees. Ulmus americana Valley Forge. This cultivar is the most resistant to Dutch Elm Disease of all American Elm selections. Ulmus Americana ‘Valley Forge’ Valley Forge Elm Categories: Botanical Name , Common Name , Container Trees & Shrubs , Elm , Planting Zone , Ulmus , Zone 4 T: +31 (0) 413 - 480 480 The Garden wouldn't be the Garden without our Members, Donors and Volunteers. Newer selections of Ulmus americana show good to excellent resistance to Dutch elm disease and are recommended for planting. Valley Forge American elm is a large-maturing shade tree with a dense canopy of dark green leaves and the graceful arching habit and adaptability that formerly made this species among the most popular and beloved street trees. Add to Wishlist; Share This. It is native to eastern and central North America. Les ormes sont des arbres du genre Ulmus , famille des Ulmaceae ou Ulmacées atteignant une trentaine de mètres (et rarement 40 m). La position des branches en V chez cet arbre se distingue nettement dès le plus jeune âge déjà. Des études plus récentes indiquent toutefois que cette résistance serait limitée et que sa sensibilité est comparable à celle du ‘Princeton’. Ulmus americana, or American Elm, is a deciduous tree, native to North Carolina, that can grow to 80 to 100 feet tall with a trunk diameter of 2 to 5 feet. Fiche simple Ulmus americana Valley Forge . By coincidence, 'Princeton' was later found to have a moderate resistance to Dutch elm disease in the USA. Ulmus americana 'Princeton' was originally selected in 1922 by New Jersey nurseryman William Flemer for its aesthetic merit. Sun Exposure: Full Sun. Many hybrid elms are also resistant to Dutch elm disease. The tree was released to wholesale nurseries without patent restrictions by the U. S. National Arboretum in 1995 after proving to have a resistance to Dutch elm disease. Grow in average, medium moisture, well-drained soils in full sun. Over the past 50 years, millions of stately elms shading the streets of the American landscape have been lost to Dutch elm disease (DED). Valley Forge Elm will grow to be about 70 feet tall at maturity, with a spread of 60 feet. Le ‘Valley For… Growzone: 5-8. Facile à transplanter, croissance rapide. Ce produit n'est malheureusement pas disponible. L'orme est un arbre de haute futaie , et fournit un excellent bois d'œuvre, pratiquement comparable au bois de chêne . Toute la connaissance.Presque tous les arbres. 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