Move the hole over if you encounter a big root. Do not pile soil over the trees’ roots. Two to three inches of loose mulch can be used, like leaves or pine nuggets. Some ground covers that can ...

Move the hole over if you encounter a big root. Do not pile soil over the trees’ roots. Two to three inches of loose mulch can be used, like leaves or pine nuggets ... Adding an irrigation system ...

Imagine trying to tell identical twins apart just by looking at their fingerprints. That's how challenging it can be for scientists to distinguish the tiny powdery pollen grains produced by fir, ...

This crazy leapfrogging of species challenges what we think we know about these systems reacting as the climate warms." Jeffrey pine trees are tolerant of both cold and drought, so while their ...