Growing large cacti does not have to be an intimidating task. With some planning and patience, you can enjoy a diversity of large growing cacti such as Cereus Peruvianus ("Night Blooming Cereus"), Euphorbia Ingens ("Candalabra Tree") and Echinocereus grusonii ("Golden Barrel"). Before purchasing the plants, consider the growth patterns such as height and spread of the cacti. Some cacti grow taller while others will spread and cluster into groups.

When choosing the container for your large cactus, remember that even slow-growing plants will eventually need to be transplanted into a larger container or trimmed to allow for root growth. Generally, all plants need repotting about every 2-3 years to renew the soil even if these plants are not root-bound. Use a pot that is at least 1/2 inch to 1 inch larger than the plant. Whether you choose clay or a different container, make sure that the pots have a good drainage hole. A preventive measure against root rot is to always have a well-drained soil mixture and a container that will allow the cactus to dry out between waterings. Clay pots are preferable to other containers. After you choose the container for your large cactus, you can then decide where to place it.

Choose a position that is safe from pets and people. If your container-grown cacti are indoors, be sure to place them near a sunny, well-ventilated window and a place that will not cause injury to others (a corner of the room that is near a window might be an option). Remember that if you are growing large container-grown plants, you need to ask the nursery expert about the growth tendencies.