Can I propagate my cactus from cuttings?

Cacti can be propagated from cuttings, and it is a gratifying addition to your plant selection. This method is good for columnar species, such as San Pedro, as well as clustering varieties. I have successfully propagated dozens of plants using these basic techniques. Always use clear-cut tools, as they limit the possibility of disease transfer to either the parent plant or the cuttings.

The callusing phase is perhaps one of the most important phases in the whole propagation process. When set to dry, place the cuttings under bright, indirect light. Ensure they are oriented so that they do not accumulate moisture, allowing for good airflow. Check often, and daily, that the exposed surfaces are firm and dry before proceeding to plant your cuttings. My golden barrel cuttings took about eight days to completely callous under dry conditions. You do not want to rush this step!

Planting requires a special set of soil conditions. Use the same gritty mix as you do for the mature plants, which is composed of 50% perlite, 40% sand, and 10% compost. Place or insert the callused ends in soil 0.5-1 inch deep. Do not water until roots begin to form (usually 3-6 weeks). Keep the plants in bright, indirect light and avoid direct sunlight during the initial rooting process.

Be attentive to root formation. Indicators may include a slight firming in the cutting, as well as signs of new growth. Once roots form, water moderately and carefully (you can use a spray bottle). Increase daylight exposure gradually over a 2-3 week period. From my experience, my first cactus cuttings rooted in 4 weeks and developed nicely with this approach.

Read the full article: 7 Essential Tips: How to Care for Cactus