During their youth, the trees can be sensitive to frost, but they become more tolerant once they reach a height of six to ...
the leaves stay on the trees during winter and keep their green color. Most of the conifers - pines, spruces, firs, hemlocks, cedars, etc. - are evergreen in both the North and South. The needle- or ...
This phenomenon, called marcescence, adds a unique dimension to the winter landscape, and gives me something to ponder while ...