Soon too the snowpack will retreat, and on the sunny, exposed edges of the lawn the first species crocus will emerge, tentative and yellow, followed by other early bulbs: snowdrop, squill, and grape-hyacinth.Late February, western New Hampshire. Tonight snow comes down in heavy wet flakes, leaving a fresh white comforter several inches thick over the landscape. Yet those of us who live and garden in this place aren’t fooled by the weather. The