I want to repot a very large night blooming cereus to a larger container. I’m not sure what type of soil to add to soil to add that will benefit this plant. I’m looking for suggestions, thank you. Robert Weisheit email rweisheit@verizon.net
These night blooming cacti actually have a very small root system so don’t jump to a much larger pot. The soil needs to drain and dry quickly so a Cactus soil would make sense. You can add clean sand to regular potting soil at a ration of 1/3 sand to 2/3 soil. The sand also has weight to help hold the top heavy cactus upright.