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The plant is a flowering evergreen hardwood shrub or small multi-trunked tree, growing from 8–18 feet (2.4–5.5 m) in height and 6–10 feet (1.8–3.0 m) in width. The 1–5 centimetres (0.39–1.97 in) leaves are olive to gray−green, fuzzy and flannel-like, palmately to pinnately lobed.
Since the establishment of the Office of Seed and Plant Introduction there has been an office within the USDA with this responsibility, though its name changes periodically. [2] Today, the branch of the USDA responsible for collecting and introducing new plant species is called the National Germplasm Resources Laboratory. [2] [7]
The U.S. Department of Agriculture's Pomological Watercolor Collection is an archive of some 7,500 botanical watercolors created for the USDA between the years 1886 and 1942 by around five dozen artists. [1]
The USDA also refers to it as the Miami Station. [1] The introduction of economically useful plants into the US is a three-step process: (1) explorers find the plants in foreign countries; (2) the plants are sent back to a USDA introduction garden where they are evaluated; (3) successful plants are distributed to farmers and nurserymen.
It is a unique resource documenting new introductions of fruit and nut cultivars as well as specimens discovered by USDA's plant explorers, representing 38 plant families in all. [20] Some of these watercolors were published in the Yearbook of the United States Department of Agriculture in the 1902–1913 period, but many were never published ...
Beginning with the administration of Secretary of Agriculture Henry A. Wallace, the United States had generally moved to curb overproduction. However, in the early 1970s, under Secretary of Agriculture Earl Butz, farmers were encouraged to "get big or get out" and to plant "hedgerow to hedgerow". Over the course of the 20th century, farms have ...
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In 2012 the USDA updated their plant hardiness map based on 1976–2005 weather data, using a longer period of data to smooth out year-to-year weather fluctuations. [7] Two new zones (12 and 13) were added to better define and improve information sharing on tropical and semitropical plants, they also appear on the maps of Hawaii and Puerto Rico.