Versatile Compatibility: These bonsai fertilizer baskets are designed to accommodate all types of granular fertilizers, whether organic or non-organic. This ensures you can use your preferred fertilizer without any restrictions. Optimal Nutrient Distribution: The baskets facilitate even and consistent distribution of nutrients around the bonsai's root system, ensuring the tree receives essential nourishment for healthy growth. Won't burn roots. Root Protection: The baskets act as a protective barrier, preventing direct contact between the bonsai roots and the fertilizer. This feature reduces the risk of root burning and potential damage, promoting the overall health of your bonsai. Durable Material: Constructed from high-quality and long-lasting materials, these fertilizer baskets are designed to withstand various environmental conditions and last for multiple fertilization cycles.