It's still a ways off for definates, but late fall I rototilled several bags of ground leaves into the ground. I'm trying to reduce purchased compost and have a household compost pile that should go into the garden in the spring time, too. My garden is relatively small, so I go for low area space used for high production. Tomatoes are for sure, probably Japanese eggplant, and leaks. I also have a 4x4 raised bed from the square foot gardening style which is will be the same spring greens. A few plantings of spinach and a little chard and kale are the main crop there.