I love to make my own compost. With some of my kitchen waste. Cabbage is one of the best things to compost for cannabis. Materials I compost are cabbage,spinach.crushed egg shells.leaves around my area and Dandelion greens they're also a good source of calcium, iron, potassium, and zinc, plus B vitamins and vitamins A, C, and D. When it's composted I mix it with promix hp. Best of luck on your grows.