Native to the southwestern United States, the agave cactus is grown and used in both outdoor gardens and indoors as a houseplant. A member of the succulent family of cacti, the agave is available in several colors and with or without spines, depending on the variety. Many agave plants die soon after flowering, but some varieties will produce pups, or root offsets, that can be repotted to replace the dying plant.
Locate a growing container slightly larger than the existing pot. For instance, if you purchased the agave plant in a 6-inch pot, choose an 8-inch container for repotting.
Place 1-inch of pea gravel in the bottom of the new container. Fill the remainder of the container with a cactus blend potting soil. If you cannot locate potting soil designed for the cactus plant, make an equal mixture of sand and regular potting soil to fill the pot.
Water the soil until water drains from the bottom of the pot. Remove the agave plant from the existing pot and shake gently to remove any old soil from the roots. Replant the agave cactus in the moist soil of the new container.
Set the container in an area that will receive 6 to 10 hours of natural light daily. Avoid placing the agave cactus directly on a windowsill, as the bright sun could "sunburn" the leaves.
Water the plant only when the soil is completely dry. Overwatering is the main cause of succulent death.