Q: I’ve heard that pine needles increase the acidity of the soil, and the needles from my Ponderosa pines are killing my grass. – Katlynn in Louisville A: Decomposition of pine needles may increase ...

Q.: I have two identical pine trees (I don't know which type) in my front yard. I once had a lush lawn, but since a summer drought in 1998 where I got too cheap with the water, most of my lawn has ...

It has a beautiful planting of white pines around the patio. The trees seem to be losing a lot of needles, and I am worried ...

In some areas of the country, the choice between mulching with pine needles and wood mulch is a tough one. Since the 1980s, pine straw has been the favorite mulch in the South. It is inexpensive, ...

Fall is coming right up, and all of those end-of-season projects are looming. If you’ve got questions, turn to Ask an Expert, an online question-and-answer tool from Oregon State University’s ...

Aim: The geographical extent and climatic tolerances of one- and two-needled pinyon pines (Pinus subsect. Cembroides) are the focus of questions in taxonomy, palaeoclimatology and modelling of future ...

Choosing a real Christmas tree is a big decision! This complete guide breaks down the different types of Christmas trees and ...