This genus is comprised of 45 deciduous, rarely semi-evergreen trees and very rarely shrubs. \u00a0Most elms are large limbed trees forming a domed crown with furrowed or fissured gray bark. \u00a0There found natural occurring in woodland, thickets, and hedgerows in the northern hemisphere and Siberia to Indonesia, Mexico to Japan. \u00a0They have alternate, ovate to elliptic, egg shaped or rounded leaves with prominent, parallel lateral veins and may be single or double toothed margins and with unequally sized bases. The leaves usually color to yellow in autumn. \u00a0Cluster of tiny, bell shaped flowers, each with 4-9 segments joined at the bases, are usually produced from auxiliary buds in spring, but sometimes from leafy buds in autumn, they are quickly followed by green to brown, rounded to elliptic, membranous wing seed capsules. \u00a0Cultivated for their habit and foliage, elms\u2019 are mainly grown as specimen trees. \u00a0Ulmus x hollandica \u2018Jacqueline Hillier\u2019 is suitable for shrub border and for hedging.<\/p>\n
In areas free of Dutch elm disease grow in any well-drained soil in full sun or partial shade. \u00a0Zelkovas are good substitutes where Dutch elm is prevalent.<\/p>\n
Prone to Dutch elm disease<\/i><\/em>\u00a0caused by the fungus Ophiostoma Ulmi <\/i><\/em>spread by bark beetles and natural grafts, has destroyed hundred of thousands of American elms. \u00a0There has been recent breeding between European and Asiatic species that are slowly showing more resistant to the disease. They are also prone to Borers, Beetles, Caterpillars, mealy bugs, scale insects, leaf hoopers, mushroom root rot, dieback, canker, Verticillium wilt, wood rot, lepidopteran larvae, hepialid moth, phloem necrosis<\/i><\/em>, and elm yellows<\/i><\/em>.<\/p>\n Ulmus x hollandica <\/b><\/strong>\u2018Commelin\u2019 \u2013 Ulmus \u2018Commelin\u2019<\/b><\/strong>\u00a0\u2013 Holland Elm \u2013 Hybrid Elm <\/b><\/strong>\u2013 This deciduous hybrid between U. glabra and U. minor has a short trunk, reaching 80\u2019 feet tall and with a narrow habit. \u00a0Heavily veined, double toothed, pointed, oval bright green leaves are 4\u201d long. \u00a0Young leaves are smooth above, downy beneath becoming glossy, eventually yellowing in autumn. \u00a0Tiny red flowers are produced in late spring followed by winged green fruit, 1\/2\u201d across, in late summer. \u00a0Shows greater resistance to Dutch elm disease than either parent.<\/p>\n Zones 5-7<\/p>\n","protected":false},"excerpt":{"rendered":" Ulmus \u2013 Elm This genus is comprised of 45 deciduous, rarely semi-evergreen trees and very rarely shrubs. \u00a0Most elms are large limbed trees forming a domed crown with furrowed or fissured gray bark. \u00a0There found natural occurring in woodland, thickets, and hedgerows in the northern hemisphere and Siberia to Indonesia, Mexico to Japan. \u00a0They have […]<\/p>\n","protected":false},"featured_media":0,"comment_status":"open","ping_status":"open","template":"","meta":[],"product_cat":[52,21,41,28,16,20,29],"product_tag":[],"common-name":[],"toolset-meta":{"plant-product-fields":{"is-featured-product":{"type":"checkbox","raw":""},"zone":{"type":"checkboxes","raw":"","checked":[],"formatted":""},"scientific-name":{"type":"textfield","raw":""}},"toolset-woocommerce-fields":{"_download_limit":{"type":"numeric","raw":"-1"},"_virtual":{"type":"checkbox","raw":"no"},"_downloadable":{"type":"checkbox","raw":"no"},"_download_expiry":{"type":"numeric","raw":"-1"},"_download_type":{"type":"radio","raw":""},"_regular_price":{"type":"numeric","raw":""},"_sale_price":{"type":"numeric","raw":""},"_sale_price_dates_from":{"type":"date","raw":"","formatted":null},"_sale_price_dates_to":{"type":"date","raw":"","formatted":null},"_sku":{"type":"textfield","raw":"PDE-160251326"},"_manage_stock":{"type":"checkbox","raw":"no"},"_stock_status":{"type":"radio","raw":"instock"},"_stock":{"type":"numeric","raw":null},"_backorders":{"type":"radio","raw":"no"},"_sold_individually":{"type":"checkbox","raw":"no"},"_width":{"type":"numeric","raw":""},"_weight":{"type":"numeric","raw":""},"_length":{"type":"numeric","raw":""},"_purchase_note":{"type":"textarea","raw":""}}},"_links":{"self":[{"href":"https:\/\/directory.plantdistributors.com\/plant-distributors-new-york\/wp-json\/wp\/v2\/product\/2934"}],"collection":[{"href":"https:\/\/directory.plantdistributors.com\/plant-distributors-new-york\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/directory.plantdistributors.com\/plant-distributors-new-york\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/directory.plantdistributors.com\/plant-distributors-new-york\/wp-json\/wp\/v2\/comments?post=2934"}],"wp:attachment":[{"href":"https:\/\/directory.plantdistributors.com\/plant-distributors-new-york\/wp-json\/wp\/v2\/media?parent=2934"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/directory.plantdistributors.com\/plant-distributors-new-york\/wp-json\/wp\/v2\/product_cat?post=2934"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/directory.plantdistributors.com\/plant-distributors-new-york\/wp-json\/wp\/v2\/product_tag?post=2934"},{"taxonomy":"common-name","embeddable":true,"href":"https:\/\/directory.plantdistributors.com\/plant-distributors-new-york\/wp-json\/wp\/v2\/common-name?post=2934"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}