If buying plant food has you saying IDK (short for I Don’t Know) about NPK, don’t worry! You don’t need to be a chemist, biologist or professional grower. We’ve got the answers to help you select the right plant food.
So, What is NPK?
NPK is an abbreviation for Nitrogen (N), Phosphorus (P) and Potassium (K). Remember the abbreviations on the Periodic Table from high school chemistry class? These nutrients when applied at the right time in the correct amount can help you grow healthier, happier plants.
Behind the Numbers
Not all fertilizers say “NPK” on the packaging, but you will consistently find three numbers that correspond to the percentage of Nitrogen, Phosphorus and Potassium content in the fertilizer. For example, you may see 10-10-10 on the packaging label which indicates the plant food contains 10% of each of these primary nutrients.