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Plant Collections Network

Kalmia

In 2010, the rhododendron and mountain laurel collections at the Jenkins Arboretum became nationally recognized as the Arboretum joined the American Public Gardens Association’s Plant Collections Network (formerly North American Plant Collections Consortium, NAPCC) – a group of botanical institutions dedicated to preserving plant germplasm. 

Hamamelis

The Dawes Arboretum is a proud participant in the Plant Collections Network (formerly North American Plant Collections Consortium, NAPCC). Our collections are maintained with proper documentation and maintenance practices as defined by the mandates established for inclusion in a Plant Collections Network collection.

Hamamelis

In the fall of 2015, Bartlett Tree Research Laboratories and Arboretum earned Plant Collections Network (formerly North American Plant Collections Consortium, NAPCC) Accreditation for its Hamamelis Collection. Located in USDA Hardiness Zone 7, this collection represents a broad range of witch hazels well suited for home and urban landscapes. This represents the fifth Plant Collections Network recognized collection for Bartlett, with Acer and Ulmus collections also being accredited in 2015.

Carya

Since 2002, the Arnold Arboretum has been a member of the Plant Collections Network (formerly North American Plant Collections Consortium, NAPCC), a network of botanical gardens administered through the American Public Gardens Association in cooperation with the U.S. Department of Agriculture. The primary focus of the Plant Collections Network is the long-term preservation of germplasm for research. Participating institutions commit to holding and developing collections that are primarily organized at the genus level.

Bamboo

San Diego Botanic Garden’s (SDBG) extensive bamboo collection—the largest one in a North American public garden—is accredited by the Plant Collections Network (formerly North American Plant Collections Consortium, NAPCC). This accreditation designates the collection as a resource for plant identification, cultivar registration, and research. Originating with the founding of the American Bamboo Society at the garden in 1979, the SDBG bamboo collection consists of 121 taxa. These include Asian species and cultivars as well as species from the Himalayas, South America, and Africa.

Camellia

Superintendent William Hertrich first planted camellias in railroad baron Henry Huntington’s southern California estate in 1908-09. The original planting consisted of two dozen plants. Now there are over 1900 camellias planted at the Huntington. One of the original plants, Camellia japonica ‘Pink Perfection’, still exists on the property.

High Elevation Palms

San Francisco Botanical Garden's Arecaeae (Palm Family) Collection has achieved Plant Collections Network (formerly NAPCC) Accreditation. The Bay Area’s mild Mediterranean climate with coastal fog is the ideal environment for growing high-elevation palm species outdoors. These conditions enable successful cultivation of rare, heat-intolerant species from cloud forest habitats in the Andes and Temperate Asia, a significant contribution to ex situ conservation initiatives.   

Clematis

The Rogerson Clematis Collection, the most comprehensive gathering of the genus clematis in the United States, has recently been granted National Collection status by the Plant Collections Network (formerly NAPCC). Located at Luscher Farm in Lake Oswego OR, the Rogerson Collection has amassed over 650 species and cultivars of clematis, including a recent gift from Poland of rare and previously unavailable cultivars from the late clematis breeder Brother Stefan Franczak.

Buxus

The U.S. National Arboretum’s National Boxwood Collection is one of the most complete collections of boxwood in the world.  There are around 150 different species and cultivars planted in the Arboretum. 

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