Many paddocks contain an isolated clump of trees Stock often shelter under these trees during the heat of the day. With the addition of an additional post or two, you can expand the area of the island of regeneration, while still allowing your stock room to rest in the shade. By using some existing paddock trees as strainer posts, you can make an island of regeneration, while also allowing your stock room to rest in the shade. View fullsize A patch of New England Peppermint growing in a paddock of native grasses in Boorolong Nature Reserve.