{"id":7183,"date":"2015-01-18T12:00:41","date_gmt":"2015-01-18T17:00:41","guid":{"rendered":"http:\/\/www.whatgrowsthere.com\/grow\/?p=7183"},"modified":"2015-01-06T22:31:36","modified_gmt":"2015-01-07T03:31:36","slug":"take-a-second-look-at-canadian-hemlock","status":"publish","type":"post","link":"https:\/\/whatgrowsthere.com\/grow\/2015\/01\/18\/take-a-second-look-at-canadian-hemlock\/","title":{"rendered":"Take A Second Look At Canadian Hemlock"},"content":{"rendered":"
\"Large<\/a>

Large hemlock hedge at Biltmore Estate, Asheville, NC<\/p><\/div>\n

\"Hemlock<\/a>

Hemlock at Yewdell in Louisville, KY<\/p><\/div>\n

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Canadian hemlock <\/i><\/b>(Tsuga canadensis<\/i>) is a native evergreen species which is available in many forms: prostrate, globose, weeping, fastigiate and variegated (USDA Hardiness Zones 3-7). Its tremendous versatility as a hedging\u00a0tree or shrub\u00a0\u00a0in planting sites is also a great reason to\u00a0continue to\u00a0include hemlock in the landscape. Hemlock may be planted in full sun to moderate shade and does quite well.<\/p>\n

Negative publicity continues\u00a0hurt the\u00a0sales of this evergreen. For nearly a half century, hemlock\u00a0wooly adelgid, a serious insect pest from eastern Asia, \u00a0has devastated hemlocks\u00a0in the eastern U.S. forest lands. Adelgid\u00a0infestations\u00a0continue to\u00a0move across the country.<\/p>\n

Plant scientists have\u00a0developed workable strategies for nursery producers and homeowners to combat wooly adelgids. In addition, the severe winter weather\u00a0of 2013-14\u00a0reduced adelgid populations\u00a0in large landscapes and forest lands. Parasitic beetle releases in state forests are helping to reduce adelgid numbers. Pesticides continue to be very effective in managing this pest without\u00a0environmentally damaging\u00a0the treated areas.<\/p>\n

The American Conifer lists over 250 cultivars of just\u00a0Canadian hemlock. Many are slow-growing and somewhat pendulous.<\/p>\n

Short List of Cultivars to Plant\u2026<\/b><\/p>\n

\u2018Cole’s Prostrate’ or \u2018Cole’ –\u00a0 slow-growing, ground hugger ideal for rock gardens; or graft\u00a0on a short standard; 3 feet after 10 years.<\/p>\n

\u2018Everitt Golden\u2019 – \u00a0new spring growth with golden tints; compact 5 feet high\u00a0by 4 feet wide shrub after 10 years.<\/p>\n

\u2018Frosty\u2019 – white tipped new spring growth that fades; 3-6 feet globe form after 10 years.<\/p>\n

\u2018Gentsch White’ –\u00a0 slow-growing,\u00a0globe form with variegated branch tips; 5-6 feet after 10 years.<\/p>\n

‘Jeddeloh’- mounding or nest-like habit; 3-6 feet height after 10 years.<\/p>\n

‘Lewis’ – dwarf with upright branched; 3-6 feet height after 10 years.<\/p>\n

\u2018Sargentii\u2019 – aka \u2018Pendula\u2019, broad spreading weeping form that\u00a0can reach more than 10 feet\u00a0high and 20 feet wide.<\/p>\n

\u2018Watnong Star\u2019 – new shoots\u00a0almost white; needle arrangement appears star-like on strong 2-inch to 2\u00bd-inch shoots.<\/p>\n

Worldwide, there are five other major species of hemlock other than\u00a0Canadian hemlock. They are Carolina hemlock (T. caroliniana), western hemlock (T. heterophylla<\/em>), mountain hemlock(T. mertensiana<\/em>), and Southern Japanese hemlock (T. sieboldii<\/em>), and\u00a0Northern Japanese hemlock (T. diversifolia<\/em>).<\/p>\n","protected":false},"excerpt":{"rendered":"

              Canadian hemlock (Tsuga canadensis) is a native evergreen species which is available in many forms: prostrate, globose, weeping, fastigiate and variegated (USDA Hardiness Zones 3-7). Its tremendous versatility as a hedging\u00a0tree or shrub\u00a0\u00a0in planting sites is also a great reason to\u00a0continue to\u00a0include hemlock in the landscape. Hemlock may […]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[657,299,144,617,800,899,816,627,843,936,1060,951,729,630,646,7,819,655,455],"tags":[],"_links":{"self":[{"href":"https:\/\/whatgrowsthere.com\/grow\/wp-json\/wp\/v2\/posts\/7183"}],"collection":[{"href":"https:\/\/whatgrowsthere.com\/grow\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/whatgrowsthere.com\/grow\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/whatgrowsthere.com\/grow\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/whatgrowsthere.com\/grow\/wp-json\/wp\/v2\/comments?post=7183"}],"version-history":[{"count":7,"href":"https:\/\/whatgrowsthere.com\/grow\/wp-json\/wp\/v2\/posts\/7183\/revisions"}],"predecessor-version":[{"id":7262,"href":"https:\/\/whatgrowsthere.com\/grow\/wp-json\/wp\/v2\/posts\/7183\/revisions\/7262"}],"wp:attachment":[{"href":"https:\/\/whatgrowsthere.com\/grow\/wp-json\/wp\/v2\/media?parent=7183"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/whatgrowsthere.com\/grow\/wp-json\/wp\/v2\/categories?post=7183"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/whatgrowsthere.com\/grow\/wp-json\/wp\/v2\/tags?post=7183"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}