Is sulfur liquid fertilizer worth the hype?

If you've noticed your plants looking a bit pale or stunted lately, switching to a sulfur liquid fertilizer might be the quickest way to turn things around. It's funny how we usually obsess over nitrogen, phosphorus, and potassium—the big three—but we often totally forget that sulfur is basically the "fourth macronutrient" that keeps everything running smoothly behind the scenes. Without enough of it, your plants just can't build the proteins they need to thrive, and you'll end up with a garden that looks like it's perpetually having a bad Monday. ...

May 10, 2026 · 6 min · Emely Lichtenstein