For a garden to thrive, it needs a combination of vital nutrients. The quantity of nutrients the plants require to thrive determine which category they fall into; Macronutrients, Secondary, and micronutrients. Macronutrients are needed in the most significant amounts, and they are also the nutrients notated on the front of the package. The secondary nutrients are vital but required in smaller quantities than the macronutrients. These secondary nutrients are calcium, magnesium, and sulfur. All these nutrients play a different role, but they all seem to share one common trait; they are easily leached from the soil.

Check out this episode of JUST GROW IT, where we discuss secondary nutrients and their deficiencies.