Pine Needles and Soil Acidity: A Colorado Garden Myth Worth Busting Conifer needles don't acidify your soil — but here's what actually keeps plants from growing under your pines, spruces, and firs. If you garden in Colorado, you've probably heard this one: pine,...

Myth: You should put rocks or gravel in the bottom of containers to improve drainage. Reality: Research shows this actually creates a perched water table, keeping water higher in the soil column and leading to soggier roots, not better drainage. It also takes up...