There are several ways to go about covering plastic plant pots for container gardening. If potting is being done for commercial purposes, covering plastic pots for pot gardening is a standard procedure. In this case, the potting mix is made up of fine sand mixed with well-composed compost to provide the plant roots with just the right amount of water and fertilizer. Cover the pot in a thick plastic wrap or tarp. Do not put the pot in direct sunlight, as it will begin to heat up and burn.
The same methods are used to protect outdoor planters from rain, but there are some additional considerations for container gardening using potting mix. When potting small plastic planters, cover both the sides and bottom of the pot with either medium or fine sand. Use a garden rake or shovel to level the soil around the planters. After the potting mixture has been packed to within three/8 inch of top, add a second layer of coarse sand. Turn the planters upside down for about two weeks to allow the first layer of sand to settle and work into the edges of the planters.
For larger plastic plant pots that need more frequent watering, cover larger pots with an open top and add coarse sand, medium and fine gravel to build up a base for the plant. It is also necessary to place drainage holes at the bottom of each pot. Otherwise, standing water may accumulate in the bottom of the pot causing root rot. Open the pot just enough to let water drain through and keep in mind that it should be kept upright at all times. To ensure drainage, position the pot on a rim joist instead of on its side.
Outdoor planters for the vegetable garden are available in many shapes, sizes, and colors. Deciding which type of container will work best is based on personal preference. Some people prefer flower pots because they provide an easily maintained and attractive surface for growing their favorite vegetables. Others like the idea of creating an outdoor space where they can grow exotic flowers, while still others enjoy being outside to enjoy the beauty of nature.
Flower pot gardening has come a long way in recent years when it comes to choosing containers for the outdoors. In the past, indoor vegetable gardeners used potting mix, which included peat moss, to help maintain the temperature of their planters. Over time, this contributed to plant diseases by encouraging bacteria growth. Now most flower pots are made of heavy duty plastic material that resists disease and provides a beautiful, even surface for growing healthy plants.
Flower pot gardening is not the only type of outdoor planters. Irrigation planters and tubs make good choices for keeping seedlings healthy. Irrigation pots are large plastic containers that hold water directly in the center. Many planters have built-in adjustable valves that allow the gardener to control the amount of water used. Tubs are small plastic containers with a hole in the top for easy drainage.
Both drainage and irrigation pots are available at nursery stores. They are popular choices because they keep the soil at the right temperature and facilitate plant health. Many homeowners choose to use plant pots because they offer a more natural look than plastic-type containers.
Whether covering plastic plant pots or other containers, the homeowner needs to keep drainage holes in mind. If the pots sit in a puddle, excess water will collect and could rot the plant. When choosing an appropriate drainage system, it is best to choose one that allows the water to drain but not pool.