By now, we’re all familiar with fertilizer when it comes to growing garden vegetables and flowers. When the cotyledon leaves appear on your seedlings, it’s a sign your young plant has used its reserves and its roots are now searching for additional nutrition in the soil. Adding fertilizer doesn’t just improve the growth of your garden crops, it is essential for healthy growth and production. Yet when it comes to microgreens, one doesn’t talk much about fertilizer. Couldn’t microgreens use fertilizer to improve their growth just like conventional seedlings? We say yes—you just need to know which fertilizers are the most ideal for microgreens and how to use them.
We suggest using either Azomite, a trace mineral fertilizer, or a water-soluble fertilizer such as, FloraGro. Both provide essential nutrients to your seedlings—and in this case, your microgreens—but they are applied using different methods.
A fine powder mined from a volcanic ash deposit that contains a myriad of rare earth elements and trace minerals. We recommend mixing it in with your compost and incorporating that compost into your potting soil for microgreen growing, or just mix it directly into the potting soil. Mixing it in before-hand allows the Azomite to process and break down to be better consumed by your microgreen plants.
- Jordan Freytag