How to Transplant Tropical Plants
Tropical plants prefer a warm, humid environment. Gardeners who do not live in such a climate can pot the tropical plants and grow them indoors. Most tropical plants prefer their roots confined in smaller pots; repotting is required only when the soil needs a yearly freshening. For plants that become root-bound, such as certain varieties of fern, transplanting into a larger pot is necessary to promote vigor.
Tips & Warnings
The best time to transplant tropical plants is in the spring and summer.
If your tropical plant will not require transplanting into a bigger pot, keep a few of the same size pots on hand. Transferring the tropical plant to a new pot is easier than emptying and refilling the same one.
You will know that your tropical plant is root-bound if the soil begins to dry out faster than usual or if the roots of the plant begin to grow out through the bottom drainage holes.
Never use outdoor garden soil for transplanting indoor plants. Outdoor soil often contains pests and diseases, and you don't want to transfer them to your tropical plants.