The Australian National Botanic Gardens maintains a scientific collection of native plants from all parts of Australia.
Many different alders, cherries, birches, magnolias, maples, oaks, rhododendrons and others. An outstanding collection of evergreen and semi-evergreen Mexican oak species.
Pukeiti is a 320 hectare rain forest property located between Mount Taranaki and the scenic west coast just south of New Plymouth and was established in 1951.
The Royal Botanic Garden of Edinburgh is a world-leading centre of excellence in plant science, conservation horticulture and education.
Formerly known as the Hillier Arboretum, it holds the greatest collection of hardy trees and shrubs in the world. Started by the late Sir Harold Hillier in 1953 and given in Trust to Hampshire County Council.
The Arnold Arboretum of Harvard University is a museum of trees teaching the world about plants.
The Morton Arboretum’s mission is to collect and study trees, shrubs, and other plants from around the world, to display them across naturally beautiful landscapes for people to study and enjoy, and to learn how to grow them in ways that enhance our environment.
The National Arboretum in Gloucestershire is renowned worldwide both for its tree and shrub collection and beautifully landscaped grounds. Today, the collection contains around 18,000 numbered specimens covering some 600 acres.
American Public Gardens Association serves public gardens and advances them as leaders, advocates, and innovators.
Established in 2004, Botanic Gardens Australia & New Zealand Limited (BGANZ) currently links more than 130 + botanic gardens. BGANZ is a ‘not for profit’ peak industry body formed to build and maintain links with relevant national and international bodies, to benefit our member gardens across Australia and New Zealand.
Manaaki Whenua – Landcare Research databases.
The New Zealand Garden Trust has been established by the Royal New Zealand Institute of Horticulture to promote the interests and profile of member gardens, and the open garden sector in general.
The International Plant Names Index (IPNI) is a database of the names and associated basic bibliographical details of all seed plants, ferns and fern allies.
The IUCN Red List of Threatened Species provides taxonomic, conservation status and distribution information on taxa that have been globally evaluated.
A website providing links to websites with information on tree conservation. Thanks to John aged 10 from Albany, NJ, USA for recommending this wonderful link