This weekend I used some of my dry Sunday to lay down compost on my leeks and onions. These overwintering veggies like lots of nutrients. The leeks need nutrient rich soil to be piled around their stems. This supports their stems and allows them to grow tall and strong.
Winter is a great time for laying down nutrients. Here in Portland, where it rains during the winter, the rain washes the nutrients down into the soil where plant roots can absorb them.