orchid bark

Best Aroid Soil Mix: The CEC Formula

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Premium best aroid soil mix components showing pumice, orchid bark, tree fern fiber, coco coir, and zeolite arranged separately before mixing, demonstrating chunk houseplant soil texture

The best aroid soil mix is engineered around two parameters: Cation Exchange Capacity (CEC) of 15 to 25 milliequivalents per 100 grams for nutrient retention, … Read more