Potassium Oxide

Potassium oxide (K₂O) might not grace your garden directly, but it’s a hidden hero in fertilizers. Here’s the short story:

• K₂O represents usable potassium (K) content. This vital nutrient strengthens plants, regulates water, and promotes healthy fruits and vegetables.
• Not the fertilizer itself. Most fertilizers use water-soluble potassium compounds (like potassium sulfate). K₂O helps compare potassium content across different brands.