This week's gardening column addresses the importance of neutral pH in your garden soil, as well as why "princess trees" are a royal pain.

One of the biggest factors affecting the health of plants in your garden is the pH of the soil, which is a measure of its acidity or alkalinity. A pH of 7.0 is neutral while that above 7.0 is alkaline ...

If you want your plants to grow big and healthy, soil quality matters. Even if you aren’t planning on growing a lush veggie garden, all plants need nutrients to grow, in addition to light and water.

IPI tests paper-based materials and adhesives for pH levels using a modification (described in ISO 18902) of the standardized test, TAPPI T 509 Hydrogen Ion Concentration (pH) of Paper Extracts (Cold ...