Ella Maxwell of Hoerr Nursery stops in to see Garry Moore to discuss Pots. If terracotta pots are left outside over winter, they get hairline cracks. If you need an outdoor planter year-round, concrete is recommended. It’s important with any planter to have a drainage hole at the bottom, and concrete pot risers will provide enough space for draining. There are plastic, lightweight pots, which are self-watering by containing a reservoir at the bottom; these can be used for indoor plants. You can also utilize a plastic saucer, which will allow extra water to run off and give the plant the necessary oxygen it needs.