Association of Societies for Growing Australian Plants (ASGAP) is a non-profit organisation which was established in the State of Victoria, Australia in 1957 by a group of people who "pledged to promote the establishment and breeding of Australian native plants for garden, park and farm."

Greening Australia

International Tree Foundation, originally founded as the "Men of the Trees", aims to plant and protect trees throughout the world. The British Society was renamed the "International Tree Foundation" in 1992. Membership is open to everyone who shares our aims; no other qualifications are required.

Tree Canada Foundation

Trees for Life, SA is a non-profit community group dedicated to revegetation and the protection of threatened and valuable bushland in South Australia.

Trees for Life, Scotland

Tree Project, Victoria