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In page Tree planting:

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There is a strong volunteer movement for conservation in Australia through Landcare and other networks. National Tree Day is organised annually by Planet Ark in the last week in July, encouraging the public to plant 1 million native trees per year. Growing trees for Timber industries is a long-term project. It may take many years for a tree to mature to an age and size that is appropriate for the Timber to be used by industry. Some trees are many hundreds of years old.[citation needed]