Often when gardeners learn we use wood fines or arbor fines in our soils, the question comes up regarding nitrogen draft. If not composted properly, wood can create a nitrogen draft, which negatively impacts plant growth. We have been formulating organic soils with aged wood fines for over 95 years. Our wood fines are included as part of the composting process to eliminate any concern for nitrogen draft. All of the wood in our soils is fully composted.