Planting dozens of plants and trees still requires many years to become large and strong enough to form a forest.
Office of Surface Mining Reclamation and Enforcement, upload by <a href="//commons.wikimedia.org/wiki/User:Quadell" title="User:Quadell">User:Quadell</a>
<a rel="nofollow" class="external text" href="https://www.osmre.gov/scripts/album.pl?photo=Revegetation/1083.jpg;photo_height=-1;photo_width=-1">Source</a>