Fertilizers: What fertilizers should I feed my (fill-in-the-blank) plant? A lot of you ask that question, about things ranging from magnolias to tomatoes. Soil fertility, and how to best achieve it, is today’s topic, with long-time organic gardener and author Lee Reich who, among his three postgraduate degrees, has one in—you guessed it—soil science.
All those different fertilizer formulas in the garden center, labeled for particular kinds of plants, seem to imply that we need to add something, no matter what. But is that always the case? Lee, the author most recently of “The Ever Curious Gardener: Using a Little Natural Science for a Much Better Garden,” talked with me about building healthy soil and growing healthy plants.