Longwood Gardens

The Plant Collections Network (PCN) (formerly the North American Plant Collections Consortium) is a group of North American botanical gardens and arboreta that coordinates a continent-wide approach to plant germplasm preservation, and promotes excellence in plant collections management. The program is administered by the American Public Gardens Association from its headquarters in Kennett Square, Pennsylvania, in collaboration with the USDA Agricultural Research Service. Current objectives of the Plant Collections Network are to: Build Awareness – of both Plant Collections Network & value of documented plant collections Promote Standards of Excellence – in plant collections management; and Expand Diversity of Collections – target existing collections, identify gaps for future collectionsThe network is intended to represent woody and herbaceous ornamentals, both native and exotic. The main objective for each network member is to assemble a comprehensive group of plants for a particular taxon, collecting plants from different populations throughout their natural range that are both taxonomically and genetically distinct. Participating institutions maximize the potential value of their collections by making efficient use of available resources through a coordinated continent-wide approach, and strengthening their own collections through collaboration with others. Criteria for participation in the Plant Collections Network are: American Public Gardens Association membership Active collections management program including plant records database, accession labels, maps Long-term commitment to maintain collection Endorsement of governing body Current collection has 50% or more of ultimate collection scope Collections policy Curator for collection; and Access to collection for research, evaluation and plant introductionThe accreditation process includes submitting a written application for each collection to be considered, then a peer site reviewer conducts an onsite assessment and submits a report with recommendations.As of March 2016, Network participants and Nationally Accredited Plant Collections included: Arizona-Sonora Desert Museum Agavaceae – Sonoran Desert; 65 taxa Arboretum at Arizona State University Phoenix; 300 taxa, 40 varieties Arnold Arboretum of Harvard University Acer; multi-site Carya; 16 taxa, 11 spp Fagus; 26 taxa Stewartia; 11 taxa Syringa; 238 taxa, 20 spp Tsuga; 72 taxa, 7 spp Atlanta Botanical Garden Acer; 82 taxa Magnolia; multi-site Sarracenia; 78 taxa Bartlett Tree Research Laboratory and Arboretum Acer; multi-site Hamamelis; 161 taxa Magnolia; multi-site Quercus; multi-site Ulmus; 62 taxa Betty Ford Alpine Gardens Alpine Plants of Colorado; 87 taxa Boyce Thompson Arboretum Fabaceae – Desert Legumes; 1454 taxa as seeds, 206 taxa as plants Quercus; multi-site University of British Columbia Botanical Garden Acer; multi-site Magnolia; multi-site University of California Botanical Garden at Berkeley Cycads; multi-site Ferns; 360 taxa, with 500+ accessions Magnolia; multi-site Quercus; multi-site Cheekwood Botanical Garden Cornus; 61 taxa Chicago Botanic Garden Geranium; 102 taxa Quercus; 48 taxa Spiraea; 52 taxa Cornell Plantations Acer; multi-site Quercus; multi-site Donald E. Davis Arboretum Quercus; multi-site University of California Davis Arboretum Quercus; multi-site Dawes Arboretum Acer; multi-site Aesculus; 59 taxa Hamamelis; 75 taxa Metasequoia; 9 taxa, with 47 accessions of documented wild-origin, 8 cultivars Denver Botanic Gardens Alpine Plants of the World; 223 taxa Quercus; multi-site Desert Botanical Garden Agavaceae; 346 taxa Cactaceae; 1319 taxa The Arboretum at Flagstaff Penstemon (provisional) – Colorado Plateau, Arizona species; 37 taxa University of Florida – North Florida Research and Education Center Magnolia; multi-site Fort Worth Botanic Garden Begonia; 1001 taxa Fullerton Arboretum (California State University) Citrus; 36 accessions, representing 20 taxa Ganna Walska Lotusland Cycads; multi-site Green Spring Gardens Park Hamamelis; 80 taxa, including all 4 spp Henry Foundation for Botanical Research Magnolia; multi-site Highstead Arboretum Kalmia; 82 taxa, including 3 spp, 76 cultivars, 4 forms, 2 hybrids Holden Arboretum Quercus; multi-site Hoyt Arboretum Acer; multi-site Magnolia; multi-site The Huntington Botanical Gardens Camellia; 1240 taxa, including 40 spp, 1200 cultivars Huntsville Botanical Garden Trillium; 66 taxa, including 28 spp Idaho Botanical Garden Penstemon – Western US (provisional); 33 taxa Jenkins Arboretum Kalmia; 48 taxa Rhododendron; 1861 taxa Jensen-Olson Arboretum Primula; 65 taxa George Landis Arboretum Quercus of the Northeast U.S.; 14 taxa, 9 spp Springs Preserve Mojave Desert Cacti and Succulents; 28 taxa Longwood Gardens Nymphaea; 97 taxa Matthaei Botanical Gardens and Nichols Arboretum Paeonia; 317 taxa, with 467 plants Mendocino Coast Botanical Gardens Heath and Heather; 134 taxa Minnesota Landscape Arboretum Grasses; 184 taxa Pinus; 60 taxa Missouri Botanical Garden Quercus; multi-site Montgomery Botanical Center Arecaceae; 356 taxa Cycads; multi-site Montreal Botanical Garden Rosa; 1097 taxa, including 115 spp Moore Farms Botanical Garden Magnolia; multi-site Morris Arboretum of the University of Pennsylvania Abies; 35 taxa, including cultivars Acer; multi-site Quercus; multi-site Morton Arboretum Acer; multi-site Magnolia; multi-site Malus; 185 taxa, 9 out of 10 known species, plus cultivars Quercus; multi-site Tilia; 45 taxa Ulmus; 78 taxa, 35 spp, 43 hybrids and cultivars Mount Auburn Cemetery Quercus; multi-site Mt. Cuba Center Hexastylis; 39 taxa, including 10 spp Trillium; 84 taxa Naples Botanical Garden Plumeria; 585 taxa New England Wild Flower Society Trillium; 28 taxa New York Botanical Garden Acer; multi-site Quercus; multi-site Norfolk Botanical Garden Camellia; 525 taxa Hydrangea; 190 taxa Lagerstroemia; 75 taxa North Carolina Arboretum Rhododendron; 15 spp, native azaleas Phipps Conservatory and Botanical Gardens subfamily Cypripedioideae; 352 taxa Polly Hill Arboretum Stewartia; 19 taxa Powell Gardens Magnolia; multi-site Quarryhill Botanical Garden Acer; multi-site Magnolia (provisional) Rancho Santa Ana Botanic Garden Quercus; multi-site JC Raulston Arboretum Cercis; 40 taxa, including 7 spp, 33 cultivars Magnolia; multi-site Reiman Gardens at Iowa State University Griffith Buck Roses; 75 cultivars Rhododendron Species Foundation and Botanical Garden Rhododendron subsect. Fortunea; 15 taxa, with 104 accessions Rogerson Clematis Garden Clematis ; 709 taxa San Diego Botanic Garden Bamboo; 121 taxa San Diego Zoo Global Cycads; multi-site Orchids; 907 taxa San Francisco Botanical Garden at Strybing Arboretum Arecaceae – high elevation; 107 taxa Magnolia; multi-site Mesoamerican Cloud Forest; 550 taxa, primarily from tropical mountains of southern Mexico and Central America Santa Barbara Botanic Garden Dudleya; 52 taxa Scott Arboretum of Swarthmore College Ilex; 312 taxa Magnolia; multi-site Quercus; multi-site Smithsonian Gardens Orchids – tropical species; 2400 accessions South Carolina Botanical Garden Magnolia; multi-site Starhill Forest Arboretum Quercus; multi-site Taltree Arboretum and Gardens Quercus; multi-site Toledo Botanical Garden Hosta; 495 taxa, including 43 spp, 452 cultivars, with 2500 accessions Tyler Arboretum Rhododendron; 529 taxa, with 1493 accessions United States National Arboretum Buxus; 190 taxa University of Washington Botanic Gardens Acer; multi-site Ilex; 47 taxa Magnolia; multi-site Quercus; multi-site VanDusen Botanical Garden Magnolia (provisional)

The Hamorton Historic District is a national historic district which is located in the center of Hamorton, Kennett Township, Chester County, Pennsylvania, United States. It was added to the National Register of Historic Places in 1990.

Hamorton is an unincorporated community and census-designated place (CDP) in Chester County, Pennsylvania, United States. It was first listed as a CDP prior to the 2020 census.The CDP is primarily in southern Chester County, in the northeastern part of Kennett Township. U.S. Route 1 passes through the community, leading east (northbound) 3 miles (5 km) to Chadds Ford and west (southbound) the same distance to Kennett Square. Pennsylvania Route 52 intersects Route 1 in Hamorton, leading southeast 10 miles (16 km) to Wilmington, Delaware, and northeast 9 miles (14 km) to West Chester. The Hamorton Historic District, listed on the National Register of Historic Places, comprises 75 historic buildings in the northern part of the CDP along US 1.

The Gideon Wickersham Farmstead, also known as "Hame's Best," is an historic home which is located near Kennett Square, East Marlborough Township, Chester County, Pennsylvania. It was added to the National Register of Historic Places in 1988.

Kennett Township is a township in Chester County, Pennsylvania, United States. It was the birthplace of Louise Brewer Shepard, the wife of the first American in space, Alan Shepard. The population was 8,289 at the 2020 census.

Old Kennett Meetinghouse is a historic meeting house of the Religious Society of Friends or "Quakers" in Kennett Township near Chadds Ford, Pennsylvania.

Parkersville Friends Meetinghouse, also known as Kennett Preparative Meeting of Friends, is a historic Quaker meeting house located in Pennsbury Township, Chester County, Pennsylvania. It was built in 1830, and rebuilt in 1917 after a fire. It is a one-story, stone building with a gable roof. It was added to the National Register of Historic Places in 1973.

Pocopson Township is a township in Chester County, Pennsylvania, United States. The population was 4,582 at the 2010 census.

Mendenhall is an unincorporated community in Kennett Township in Chester County, Pennsylvania, United States. Mendenhall is located at the intersection of Pennsylvania Route 52 and Hillendale Road.

The Pennsbury Inn, now known as Wild Wisteria, and formerly known as the Lancaster Inn or Hal-Dell Farm, is an historic, American inn and tavern that is located in Pennsbury Township, Chester County, Pennsylvania. It was added to the National Register of Historic Places in 1973 and converted to a Bed and Breakfast in 1999.

The Marlborough Village Historic District is a national historic district that is located in East Marlborough Township and Newlin Township, Chester County, Pennsylvania. It was added to the National Register of Historic Places in 1995.

The Bayard Taylor Memorial Library is located in Kennett Square, Pennsylvania and is part of the Chester County Library System. The library was dedicated on Sept. 24, 1896, named in honor of Bayard Taylor, and opened to the public on Sept. 28 with a few periodicals and empty shelves.