Container gardening is the practice of growing plants exclusively in containers or "pots", instead of planting them in the ground. In some cases, this method of growing is used for ornamental purposes. This method is also useful in areas where the soil is unsuitable for the plant or crop in question. Limited growing space can also make this option appealing to the gardener.
Containers range from simple plastic pots, teacups to complex automatic-watering irrigation systems. This flexibility in design is another reason container gardening is popular with growers. They can be found on porches, front steps, and in urban locations, on rooftops.
Sub-Irrigated Planters (SIP) are a form of container gardening.
Repotting is the action of placing an already potted plant into a larger or smaller pot. A pot that fits a plant's root system better is normally used. Plants are usually repotted according to the size of their root system. Most plants need to be repotted every few years, because they become "pot-bound" or "root-bound."