This kind of hanging basket liner will keep your plants in place and moist and it, generally, comes for free, and will last for years, unlike the coir, moss, or even fake moss ones.
You can choose to make drainage holes or not, depending how well your plants may like having their “feet” in water. Considering, however, that generally, hanging baskets, when with bracket attached to wall of house, are in the so-called rain shadow, and thus do not get watered naturally by the rain having no drainage holes in the liner saves you watering on a daily basis.
There are many options for recycling plastic bags for use as handing basket liners. Compost bags of various sizes, as well as others, are suitable and the colors may vary from white, to blue or black. It all depends. On the other hand, other bags you can use might be transparent, which even allows you to see the growth of the roots and thus can see whether plants may get root bound. Spider plants (Chlorophytum comosum) is a candidate that gets root bound in pots or handing baskets quite quickly, which then meas either re-potting or splitting.
As the bags you may be using will not be designed to fit a hanging basket as a liner you will have to do some cutting and some folding and tucking, but it will be worth it alone for the fact that (1) you don't have to buy a liner every year and (2) you keep some plastic out of the waste stream (for some years at least). The important thing is that it works and well worth it. A win-win on so many levels.
© 2018
