The color of hydrangea flowers can change from pink to purple and blue by tweaking the soil. How do other plants react to those changes? Sydney Kozak explored just that. Her project, “Does changing ...

Healthy plants are the most critical component of a thriving garden. And one of the best ways to keep them that way is to make sure your soil’s pH level suits their needs. Every plant requires a ...

CORVALLIS – Often not considered, soil pH has as much effect on plant health as disease, insects, drought and drainage. Keeping pH in the right range for certain plants is essential, according to ...