Diy Moss Pole For Plants . With a larger moss pole, for a larger plant, you may really have to repot the plant when you want to add the moss pole to the plant. You can also add some extra soil or growing medium around the base of the moss pole to ensure it is stable. DIY Moss Pole A Helpful Way of Keeping Houseplants Fresh Balcony from www.balconydecoration.com Push the moss pole into the soil next to the plant. And finally, fill in with your potting mix! With a wire cutter cut chicken wire to the desired with.