How do you mix your own potting soil for flowers?

Methods for making various homemade flower potting soils: ① For general potted flowers, mix 2 parts garden soil, 2 parts decayed soil, and 1 part river sand; or mix 3 parts leaf mold, 1 part peat soil, and 1 part rice husk ash.

② For flowers with well-developed root systems and vigorous growth, mix 4 parts garden soil, 2 parts leaf mold, and 2 parts rice husk ash and 2 parts coarse sand.

③ For sowing potting soil, mix 2 parts garden soil, 1 part rice husk ash, and 1 part sandy soil; for cuttings, the substrate can be made by mixing equal parts garden soil and rice husk ash.

④ For plants that prefer shade and moisture, mix 2 parts leaf mold, 1 part river sand, and 1 part sawdust or peat.

⑤ For flowers that prefer acidic soil, mix 2 parts mountain soil and 1 part peat or sawdust.

⑥ For fruit- and flower-ornamental plants, especially large-flowered varieties, in addition to the above materials, a small amount of bone meal or superphosphate should be added to the soil to supplement the phosphorus and potassium elements in the soil.