How to repot a houseplant

To keep houseplants healthy and thriving, they should be moved to a bigger pot every year, just before they begin their active growing phase in the spring. You might have noticed some soil that seems to have spilled around the pot. Don't be quick to blame the cat: As roots expand and take up more space, soil often gets pushed out onto the table or floor. You also might have noticed the pot has gotten lighter. That's an indication there isn't much soil left in there.

VIDEO: Repotting demonstration

Don't be tempted to repot a small plant into a large pot in the hopes you won't have to repeat the task for a few years; you might end up killing the plant because the excess soil will hold more water than the roots can absorb, possibly leading to root rot. Instead, move up to a pot that's just 1 or 2 inches larger in diameter.

Cover the drainage hole with a small rock or fragment from a broken clay pot. This will be sufficient to keep soil in while allowing excess water to drain.

Add as much potting mix as necessary to ensure the plant sits at the same level as it was when growing in its old pot. (Get step-by-step instructions for making your own potting mix.)

Roots likely will be crowded and encircling themselves. Gently separate them with your fingers and then add more potting mix. This will direct them to grow outward into the soil, where they'll soak up water and nutrients.

Insert the plant into the pot and fill gaps with potting mix. Tamp down firmly to eliminate air pockets, and water well.