Normally, unless a Woodland TPO is proposed, only trees over 3.5m in height are considered for a TPO. Hedges, bushes and shrubs will not be protected. A Woodland TPO protects all trees within the defined area, including natural regeneration - seedlings and saplings ie. trees less than 3.5m in height are not excluded.
If you wish to carry out works to protected trees you must first seek the Department’s consent to do so by contacting the Tree Officer in your local Planning Office.