{"id":652,"date":"2021-12-14T21:39:13","date_gmt":"2021-12-15T02:39:13","guid":{"rendered":"https:\/\/www.lancastercountytrees.org\/blog\/uncategorized\/eastern-black-walnut\/"},"modified":"2022-03-03T22:48:49","modified_gmt":"2022-03-04T03:48:49","slug":"eastern-black-walnut","status":"publish","type":"cpt_trees","link":"https:\/\/www.lancastercountytrees.org\/trees\/eastern-black-walnut\/","title":{"rendered":"Eastern Black Walnut"},"content":{"rendered":"\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"488\" height=\"650\" src=\"https:\/\/www.lancastercountytrees.org\/wp-content\/uploads\/2021\/12\/81A_BlkWalnut_Wheatland_JPG.webp\" alt=\"81a Blkwalnut Wheatland Jpg\" class=\"wp-image-1105\" srcset=\"https:\/\/www.lancastercountytrees.org\/wp-content\/uploads\/2021\/12\/81A_BlkWalnut_Wheatland_JPG.webp 488w, https:\/\/www.lancastercountytrees.org\/wp-content\/uploads\/2021\/12\/81A_BlkWalnut_Wheatland_JPG-225x300.webp 225w\" sizes=\"(max-width: 488px) 100vw, 488px\" \/><figcaption><em>Wheatland (Tanger Arboretum), 1120 Marietta Avenue, Lancaster PA (along upper driveway)<\/em><\/figcaption><\/figure><\/div>\n\n\n\n<p>One of the county\u2019s nicer Black Walnuts, with a trunk circumference at breast height of 11 feet in 2018.<\/p>\n\n\n\n<p>Calculating\u00a0this tree\u2019s age by formula (see\u00a0<em>Special Topics)\u00a0<\/em>gives an estimate of up to\u00a0190 years. President James Buchanan purchased Wheatland in 1828, 192\u00a0years ago. \u00a0Buchanan lived at Wheatland for two decades, so even if the formula age is an overestimate (which it\u00a0probably is), this tree still might have been planted by the President.<\/p>\n\n\n\n<p><em>This amazing species excretes chemicals into the soil that inhibit growth by other plants. \u00a0Some 1,950 years ago, Pliny the Elder observed that \u201cthe shadow of walnut trees is poison to all plants within its compass.\u201d<\/em><\/p>\n\n\n\n<figure class=\"wp-block-gallery has-nested-images columns-default is-cropped wp-block-gallery-1 is-layout-flex wp-block-gallery-is-layout-flex\">\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"494\" height=\"657\" data-id=\"1107\" src=\"https:\/\/www.lancastercountytrees.org\/wp-content\/uploads\/2022\/03\/81B_Walnut_Tanger_JPG.webp\" alt=\"81b Walnut Tanger Jpg\" class=\"wp-image-1107\" srcset=\"https:\/\/www.lancastercountytrees.org\/wp-content\/uploads\/2022\/03\/81B_Walnut_Tanger_JPG.webp 494w, https:\/\/www.lancastercountytrees.org\/wp-content\/uploads\/2022\/03\/81B_Walnut_Tanger_JPG-226x300.webp 226w\" sizes=\"(max-width: 494px) 100vw, 494px\" \/><\/figure>\n<\/figure>\n","protected":false},"featured_media":1105,"template":"","tax_tree-categories":[7,15],"acf":{"scientific_name":"Juglans nigra"},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v22.4 - 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