In general, when should houseplants be re-potted to allow room for adequate root growth?
If your plants slow down in their growth rate, the soil seems to be drying out rapidly, or you see roots coming through the bottom of the container, it is time to repot your plant. When it is time to repot, select a container just slightly larger than the one it is currently in and check to see that it has drainage holes. Loosen up the roots of the plant, place it in the new container at the same depth as before and add additional potting media such as Merrifield Potting Mix. Water thoroughly to settle out any air spaces.
