Composting turns kitchen scraps and yard waste into free, nutrient-rich soil for your garden. Here's how to build a pile, what to add and avoid, and when it's ready to use.
Some tree leaves are especially nutrient-rich, including ash, poplar, maple, and willow. Whole leaves compost fine, but shredding them speeds things up. Avoid walnut leaves, which release a compound (juglone) that can stunt many plants. Oak leaves are slow to break down and slightly acidic because of their tannins, so some gardeners compost them separately for use around acid-loving plants like blueberries, strawberries, and azaleas, though finished compost tends to settle near neutral either way.

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