How to mix orchid potting medium? Sharing practical small formulas

Growing orchidsSmall formulas for potting medium Potting medium is theorchidmaterial basis on which it depends for survival, and it is also one of the factors that promotes more shoots, vigorous roots, and strong seedlings. Below are formulas verified through the author's repeated trials and suitable for differentorchids. Formula 1: 70% mushroom soil, 20% rice husk charcoal, 10% coarse river sand, plus another 10% bone charcoal (this formula is suitable for plantingCymbidium goeringii、Cymbidium faberi). Formula 2: 40% rice husk charcoal, 30% mushroom soil, 10% red brick granules, 10% coarse river sand, 10% fired soil, plus another 10% bone charcoal (this formula is suitable for plantingCymbidium kanran). Formula 3: 30% red brick granules, 20% coarse river sand, 30% rice husk charcoal, 20% mushroom soil, plus a small amount of dried cow dung and bone charcoal (this formula is suitable for plantingCymbidium ensifolium、Cymbidium sinense). Formula 4: 40% rice husk charcoal, 20% mushroom soil, 10% red brick granules, 10% coarse river sand, 10% coal cinder, 10% dried cow dung (this formula is suitable forcultivatingvariegated-leaf orchids). Mushroom soil is loose and breathable, light, permeable to water, and moderate in nutrients, and can makeorchidsproduce more shoots, vigorous roots, and strong seedlings; rice husk contains various ash elements and other large amounts of trace elements, mainly potassium, which is good for root development; bone charcoal is rich in phosphorus, not harsh in fertilizing strength, and long-lasting in fertilizer effect; coal cinder contains minerals; red brick granules have many pores and excellent drainage and water retention performance.