Adam Burgess and Mark Richardson, Horticultural Manager, National Arboretum Canberra Botanical Consultant, Adelaide Abstract The National Arboretum Canberra (NAC) was opened in February 2013.  With planting having started in 2007, there are now 94 forests on a site of 250 ha representing rare, threatened or otherwise significant trees from around the world.  To date, about 40,000…

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