What is the best soil mixture for plant growth and drainage?

The best soil mixture for optimal plant growth and drainage typically includes a combination of organic matter, such as compost or peat moss, and inorganic components like perlite or vermiculite. A common ratio is 2 parts organic matter to 1 part perlite or vermiculite, which enhances aeration and moisture retention while preventing compaction. Additionally, incorporating sand can further improve drainage, especially for plants that prefer drier conditions. Always consider the specific needs of the plants being grown, as different types may require adjustments to this basic mixture.