How to Feed a Cactus

Transplant the cactus plant into a clay pot with an adequate drainage system that is filled with peat, sand, soil and a low-nitrogen, slow-release fertilizer. This will provide an ideal situation that allows water to drain from the soil.

Place your finger into the soil. If the soil feels moist, do not water the cactus. Once the soil feels dry, pour just enough warm water into the soil to moisten the roots. If there is any standing water on top of the soil, remove it, as this will be too much liquid for the plant to handle.

House the plant in a room that is away from a direct heat source, such as a radiator. Instead keep the cactus in an area that will allow it filtered sunlight.

Add more fertilizer to the plant once per year. Avoid fertilizing the cactus during the winter as this is a more dormant period for the cactus and the extra nutrients are not required.