The original Christmas tree was a Spruce, which is distinguished by its cone shape and whorled branches. The needles of a Spruce are attached singly to the branches rather than in bunches, in a spiral ...

This is a preview. Log in through your library . Abstract On the oldest continuously studied forest fertilization trials in North America, at Pack Forest in New York State, a pronounced tree growth ...

Reviews and recommendations are unbiased and products are independently selected. Postmedia may earn an affiliate commission from purchases made through links on this page. In today’s gardening world ...

We buy live Christmas trees with the best of intentions, excited about the possibilities of decorating our living rooms for the holidays and our gardens for evermore. Sometimes, that's just the ...

1 Data from elevations ranging from mixed hardwood-conifer forest at 600 m to subalpine Abies balsamea forest at 1120 m indicate that canopy gaps are not static but expand over time due to mortality ...