Can you cut a cactus in half and replant it?

Answered by Jarrod Smith

So, let me start by saying that cutting a cactus in half and replanting it is indeed possible. However, there are a few important things to keep in mind to ensure success.

Firstly, it’s crucial to let the cut stems and trunks callus at the end for several days before planting them. This callusing process allows a protective layer to form over the cut, which helps prevent rot and infection. Simply place the cut ends in a dry, shaded area and let them sit for a few days until a callus forms.

Once the callus has formed, you can proceed with planting the cactus. It’s important to choose a well-draining potting mix specifically formulated for cacti and succulents. This type of soil will provide the necessary drainage to prevent root rot.

When planting, make sure to bury the cut end of the cactus deep enough to provide stability and support. Gently press the soil around the base of the cactus to secure it in place. Avoid watering the newly planted cactus for a few days to allow it to acclimate and minimize the risk of overwatering.

Now, let’s talk about offsets or pups. These are small offshoots that grow from the base of a mature cactus. They are essentially new plants in their own right and can be separated from the parent plant to create new cacti. To do this, carefully cut the offset away from the parent plant using a sharp, sterilized knife or scissors. Be sure to include some of the root system to ensure successful establishment.

Once you have separated the offset, it’s important to pot it up immediately. Use a small, well-draining pot filled with the same cactus-specific potting mix mentioned earlier. Plant the offset at a similar depth as it was growing on the parent plant and gently firm the soil around it. Water sparingly and allow the newly potted offset to settle in its new environment.

Cutting a cactus in half and replanting it is possible, but it’s important to let the cut ends callus before planting them. Additionally, any offsets or pups that are cut away from the base of a specimen should be potted up immediately to create new plants. With the right care and attention, you can successfully propagate and grow new cacti from cuttings or offsets.