Back to soils
Cactus mix
Specialty mix with sand, perlite, and minimal organic matter.
Gritty, porouspH 6–7.5
Drainage
Very fast
Water retention
Very low
Best plants
Cacti, succulents, dry-climate container plants
Pros
Prevents root rot, excellent aeration, mimics desert conditions
Cons
Dries very fast, low fertility, wrong choice for thirsty plants
Amendments
Extra pumice for heavy waterers or humid climates