And I always use an organic potting soil without added fertilizers. I add drainage material for the
succulents, leaf mould I sift from under the
trees in the woods behind my house for the cyclamen and philodendron, ... You're going to get lots of differing answers on this! Look for common themes, like succ's need fast draining soil, tropicals need something that can maintain a more even moisture content, fertilizers can be built in or added, not both. Think where your
plant lives in nature, you're trying to mimic those conditions.