Before adding your plant to your planter, it is important to ensure that you have a proper drainage system in place. This can be done by drilling a hole in the bottom of your planter or by purchasing one that comes with a drainage hole as standard. After this, adequate drainage can be assured via the addition of porous drainage mediums like clay pebbles. Bubble wrap or newspaper may also be used to line the bottom of your planter as these are materials that can help your plant retain moisture without losing soil.