A seed library is an institution that lends or shares seed. It is distinguished from a seedbank in that the main purpose is not to store or hold germplasm or seeds against possible destruction, but to disseminate them to the public which preserves the shared plant varieties through propagation and further sharing of seed. The first contemporary seed library was created in 1999 at the Berkeley Ecology Center. It was called the Bay Area Seed Interchange Library (BASIL). The first seed library to be established in a public library was at the Gardiner Public Library in Gardiner, New York and was developed by Ken Greene in 2004. Since then, the number of seed libraries has grown to over 450 across the globe, with most being established in the United States. Seed libraries usually maintain their collections through donations from members. but may also operate as pure charity operations intent on serving gardeners and farmers. A common attribute of many seed libraries is to preserve agricultural biodiversity by focusing on rare, local, and heirloom seed varieties. Seed libraries use varied methods for sharing seeds, primarily by: seed swaps otherwise known as seed exchanges, in which library members or the public meet and exchange seeds seed "lending," in which people check out seed from the library's collection, grow them, save the seed, and return seed from the propagated plants to the library Seed libraries may function as programs of public libraries, such as the programs of the Richmond Public Library in California (the "Richmond Grows" program is the "unofficial spiritual center of the [public library seed library] movement") and the New Port Richey Public Library (Florida). Seed library initiatives in public libraries garner patron participation as a novelty supplement to book check-outs. Seed packets are usually located next to everyday circulated items like books, audiobooks, CDs, and DVDs. Seed libraries in public libraries have been successful because they catch patron hobby curiosities.
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