{"id":161,"date":"2025-09-25T16:34:32","date_gmt":"2025-09-25T20:34:32","guid":{"rendered":"https:\/\/www.clarku.edu\/hadwen-arboretum\/?p=161"},"modified":"2025-09-25T18:13:32","modified_gmt":"2025-09-25T22:13:32","slug":"eastern-hemlock","status":"publish","type":"post","link":"https:\/\/www.clarku.edu\/hadwen-arboretum\/trees\/eastern-hemlock\/","title":{"rendered":"Eastern Hemlock"},"content":{"rendered":"\n<div class=\"wp-block-columns sidebar is-layout-flex wp-container-core-columns-is-layout-28f84493 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:50rem\">\n<h2 class=\"wp-block-heading\"><em><em><em><em><em><em><em><em><em>Tsuga canadensis<\/em><\/em><\/em><\/em><\/em><\/em><\/em><\/em><\/em><\/h2>\n\n\n\n<p class=\"is-style-intro\">Eastern hemlock is an evergreen, coniferous tree that can live for up to 500 years. An important part of late succession forests in the northeastern United States, eastern hemlock populations are under threat from a sap-sucking insect called hemlock woolly adelgid.<\/p>\n\n\n\n<aside class=\"wp-block-group boxout has-light-green-background-color has-background is-content-justification-left is-layout-constrained wp-container-core-group-is-layout-12dd3699 wp-block-group-is-layout-constrained\">\n<h4 class=\"wp-block-heading\">Location<\/h4>\n\n\n\n<p>Today, a great place to see eastern hemlock is on the cutoff trail connecting Larch Lane and the Hidden Spring Trail.<\/p>\n<\/aside>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:50rem\">\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"900\" height=\"600\" src=\"https:\/\/www.clarku.edu\/hadwen-arboretum\/wp-content\/uploads\/sites\/97\/eastern-hemlock-leaf.jpg\" alt=\"Eastern Hemlock leaves\" class=\"wp-image-163\" srcset=\"https:\/\/www.clarku.edu\/hadwen-arboretum\/wp-content\/uploads\/sites\/97\/eastern-hemlock-leaf.jpg 900w, https:\/\/www.clarku.edu\/hadwen-arboretum\/wp-content\/uploads\/sites\/97\/eastern-hemlock-leaf-300x200.jpg 300w, https:\/\/www.clarku.edu\/hadwen-arboretum\/wp-content\/uploads\/sites\/97\/eastern-hemlock-leaf-768x512.jpg 768w\" sizes=\"auto, (max-width: 900px) 100vw, 900px\" \/><\/figure>\n<\/div>\n<\/div>\n\n\n\n<div style=\"height:4rem\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<div class=\"wp-block-group alignfull section-intro has-light-warm-gray-background-color has-background is-layout-constrained wp-block-group-is-layout-constrained\">\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-28f84493 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-vertically-aligned-stretch is-layout-flow wp-block-column-is-layout-flow\">\n<div style=\"background-image:url(&apos;https:\/\/www.clarku.edu\/hadwen-arboretum\/wp-content\/uploads\/sites\/97\/eastern-hemlock-tree.jpg&apos;);background-position:50% 50%;background-size:cover;\" class=\"wp-block-group padded lifted has-white-background-color has-background wp-container-content-69bc4bdf is-layout-constrained wp-block-group-is-layout-constrained\">\n<div style=\"height:25.625rem\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<div class=\"wp-block-group padded has-charcoal-color has-text-color has-link-color wp-elements-11833069acf101f81f3d68871eb7beae is-layout-constrained wp-block-group-is-layout-constrained\">\n<h3 class=\"wp-block-heading\">History at Hadwen<\/h3>\n\n\n\n<p class=\"intro has-medium-font-size\">The eastern hemlock was an original planting by Hadwen himself. In 1900, Hadwen said \u201c[hemlock] is perhaps the best of the coniferous trees. When standing alone it forms a shapely and graceful tree; the marked and distinct contrast in color of the new and old foliage is always pleasing, and when it is covered with light snow it forms an object of beauty unequalled in winter scenery. For this climate, it may be justly called the queen of the evergreens.\u201d<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-group section is-layout-constrained wp-block-group-is-layout-constrained\"><div style=\"color:var(--clarku-color-green)\" class=\"eyebrow  has-text-align-left\">Keep learning<\/div>\n\n\n\n<h3 class=\"wp-block-heading\">Detailed species information<\/h3>\n\n\n\n<p>Eastern Hemlock is an evergreen tree in the family Pinaceae native to the Great Lakes region, Appalachian mountains, northeastern United States, and parts of southeast Canada. These long-lived trees can reach 500 years in age and 100 feet (30 meters) in height. They are characterized by tall straight trunks and downward-reaching branches. The bark is brown and scaly and becomes deeply fissured with age. The leaves are flattened green needles about half an inch in length (13 millimeters). The eastern hemlock seeds are contained in small cones about an inch (2.5 centimeters) or less in length.<\/p>\n\n\n\n<p>Eastern hemlocks are typically found in highlands with cool, moist conditions. Highly tolerant of shade, they can establish in the understories of forests and live to become part of the overstory in late succession forests. Despite the eastern hemlock\u2019s ability to tolerate varied soils and light conditions, it is currently threatened by a small insect introduced from Asia in 1924 called hemlock woolly adelgid (<em>Adelges tsugae<\/em>). These insects suck the sap from the trees, slowly killing branches and eventually the trees. Currently, the eastern hemlock is considered to be Near Threatened on the IUCN Red List.<\/p>\n\n\n\n<p>Eastern hemlock is generally considered to have low-quality lumber, but its wood is sometimes used for pallets or pulp. Historically, the bark was a commercially viable source of tannin used to make leather goods. Eastern hemlock is widely cultivated with over 300 cultivars, many of which are dwarf forms and shrubs. Due to the rare combination of coniferous and shade tolerance, as well as its ability to withstand pruning, eastern hemlock is a versatile ornamental.<\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Tsuga canadensis Eastern hemlock is an evergreen, coniferous tree that can live for up to 500 years. An important part of late succession forests in the northeastern United States, eastern hemlock populations are under threat from a sap-sucking insect called hemlock woolly adelgid. Location Today, a great place to see eastern hemlock is on the [&hellip;]<\/p>\n","protected":false},"author":7,"featured_media":163,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_links_to":"","_links_to_target":""},"categories":[5],"tags":[],"class_list":["post-161","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-trees"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.2 (Yoast SEO v27.3) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Eastern Hemlock | Hadwen Arboretum | Clark University<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.clarku.edu\/hadwen-arboretum\/trees\/eastern-hemlock\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Eastern Hemlock\" \/>\n<meta property=\"og:description\" content=\"Tsuga canadensis Eastern hemlock is an evergreen, coniferous tree that can live for up to 500 years. An important part of late succession forests in the northeastern United States, eastern hemlock populations are under threat from a sap-sucking insect called hemlock woolly adelgid. Location Today, a great place to see eastern hemlock is on the [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.clarku.edu\/hadwen-arboretum\/trees\/eastern-hemlock\/\" \/>\n<meta property=\"og:site_name\" content=\"Hadwen Arboretum\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/ClarkUniversityWorcester\" \/>\n<meta property=\"article:published_time\" content=\"2025-09-25T20:34:32+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-09-25T22:13:32+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.clarku.edu\/hadwen-arboretum\/wp-content\/uploads\/sites\/97\/eastern-hemlock-leaf.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"900\" \/>\n\t<meta property=\"og:image:height\" content=\"600\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@clarkuniversity\" \/>\n<meta name=\"twitter:site\" content=\"@clarkuniversity\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Carol D&#039;Onofrio\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"3 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.clarku.edu\\\/hadwen-arboretum\\\/trees\\\/eastern-hemlock\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.clarku.edu\\\/hadwen-arboretum\\\/trees\\\/eastern-hemlock\\\/\"},\"headline\":\"Eastern 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