Your trees' stakes and/or Platipus anchors have a vital role to play in your trees' establishment. It is crucial the trees don't rock in the wind as this will tear fine new roots trying to grow into the surrounding soil. Check your stakes regularly to be sure they are firm and the ties are holding the trees snugly in the correct position. Stakes can normally be removed after two full growing seasons, but make sure the tree is well-rooted before pulling them out. Should you leave the stakes indefinitely, they can eventually choke the tree or at best leave a compression mark on the bark.
Platipus anchors occasionally need further maintenance after the first high winds. A crack appearing between the rootball and the surrounding garden soil is a sign your anchoring system may be loose, and if the tree is moving in the wind it may need tightening up. However, don't be alarmed unless it has shifted and is slighty crooked, as minor movement in the rootball may not need any remedial action. If a Platipus overhead guying was used it can also be tightened up by rotating the ratchets using a special tool.