Last fall, as an experiment, I put a small amount of wood ash around the base of three of the trees. 올봄 거의 모든 나무에 꽃이 많이 피었기 때문에 나무 재가 얼마나 효과가 있었는지 잘 모르겠습니다. In May, when the apple trees were in full bloom, we had several mornings of heavy frost.