Azaleas are flowering shrubs that prefer acidic soil and full sun to partial shade. Composting is the biodegradation of organic matter like yard and food waste. To compost successfully, one should add materials like leaves, grass, and coffee grounds but avoid meat, oils, or diseased plants. Composting can be passive and slow, or active and fast through regular aeration, moisture control, and balancing the carbon to nitrogen ratio to heat the pile over 130 degrees Fahrenheit. Building the pile in layers and turning it regularly results in compost in 4-5 weeks during summer or 6-8 weeks in fall.