Soil 101 How to Make a Potting Mix for Succulents and Cacti Why Are My Succulent Leaves Turning Yellow? (Visual Diagnosis) SucculenCare Barley is a quick growing cool season winter annual grass that reduces soil erosion and fights soil compaction. It is a good choice to add to cover crop mixes to improve soil tilth Behind the Bench : Succulents don't need muchbut when you water, it matters. In this reel, we're showing you how to water properly to avoid root rot and keep your plants thriving.