What exactly is sulfur, and why does it matter so much for your garlic plants? Garlic Needs Sulfur: The Secret Ingredient for Bigger Bulbs and Stronger Plants Garlic is a superstar in the garden, but its secret to success lies in an often-overlooked nutrient: sulfur. While you might think of sulfur as the stuff that makes onions make you cry, for garlic, it’s a vital nutrient that powers its growth, flavor, and health. But what exactly is sulfur, and why does it matter so muc