An 8 qt. bag is shown to fill two 8-inch containers or five 6-inch containers. Other available sizes include 1 cubic foot bags (which hold substantially more mix than an 8 qt. bag).
Use a pot with a drainage hole. Fill about one-third with the mix, set the plant’s root ball in place, add more mix around the root ball and press lightly to remove air pockets. Water thoroughly, let excess drain, and then allow the soil to dry to the touch between waterings.
Some mixes are formulated specifically for indoor container plants, while others are described as suitable for both indoor and outdoor container growing. Check the product label to confirm intended use.
Water thoroughly and let excess drain. Allow the soil to dry to the touch between waterings, and avoid letting plants sit in drainage water to prevent root rot.
Look for a fast-draining mix with a structure that resists compaction, formulated for container use. Many mixes are also enriched with plant food and some include earthworm castings for added micro-nutrients.
They use fast-draining formulas and ingredients such as sphagnum peat moss, sand, and perlite to improve aeration and drainage. The blended texture is designed to help prevent compaction in container-grown plants.
Common ingredients include forest products and sphagnum peat moss, plus sand and perlite for drainage. Some mixes also list earthworm castings for micro-nutrients.