Typically, you insert the liners into a metal framed holder. If you buy a railing planter online or from a local garden center, you’ll want to pay attention to the planter’s material.Ĭoco liners are popular and inexpensive. If you’re creative, you can even drum up a planter using household items like gallon milk jugs, bowls, and other plastic containers.
Over-the-railing planters come in a variety of materials.
