Consider repotting houseplants In the spring when new growth starts. Turn each of your plants upside down, tap the edge of the pot, and remove the plant. If the roots are in a solid mass, the plant needs to be repotted. Shift the plant to a pot 1 or 2 inches larger in diameter (with a drainage hole). Add new soil to the container. For most plants, use a commercial peat-lite mix, or make your own by combining 3 parts sphagnum peat moss, 1 part vermiculite, and 1 part perlite or sterile sand. Before setting the plant into the pot, gently loosen the root-ball so the roots will move out into the new soil. After adding the soil, water to eliminate any air pockets. Usually you will not need to water as frequently for a few months after repotting.
