I've been getting questions about my recipe, so I'll include it here in a new thread. It's made to only be the base for a range of mixes depending on an individual plant's needs. This would be the most water-retentive, high-organic version I use; then for some plants, like for instance palms, it would get get extra drainage material added. For some caudex-forming plants or hearty (not hardy) succulents it gets lots of extra drainage. For delicate succulents I start completely from scratch with a different mix. My goal with this mix is maximum growth for indoor tropical houseplants in an organic mix without having any odor problems for the sensitive non-plant-lovers in my family. I want it to hold water but also lots of air at the same time. I also want the mix to be able to to very well transfer water up and throughout the pot so the top is similar to the bottom and I know better when to water, thereby reducing overwatering problems. The core of mix is one widely used by thousands of container food & medicinal (illicit) growers around the world. It's 1/3 organics (like compost or worm castings), 1/3 drainage (perlite, pumice), 1/3 water retention (peat, coir), plus organic fertilizers, minerals, and pH adjustment. Here is my favorite version that I've slowly developed over about 25 years of using that basic core: 10 gal long-fibered blonde sphagnum peat moss (like Pro-Moss TBK, not regular peat or plain sphagnum) 6 gal pumice 4 gal perlite, washed 5 gal long-aged compost (must contain no manures for indoor use!) 5 gal pure worm castings (stay away from brands with lots of filler) 4 cups ground oyster shell flour 2 cups kelp meal 2 cups alfalfa meal 2 cups azomite 3 cups greensand 3 cups gypsum 4 cups basalt dust Makes 4 cu ft, fits perfectly in a Rubbermaid Roughneck 44 gal garbage can on wheels. Premix dry minor ingredients before adding slowly to the majors. With high-organic mixes, let them "cook" for a month, medium-wet, before using; especially if you don't have access to long-aged compost, which is usually not something you can buy off the shelf (I store my compost an extra year after it is finished).