Can You Use Human Vitamins for Plants? Are Expired …
Excess use can harm plant growth, due to over-fertilization. Pros of Plant Vitamins. Familiar Ingredients: Apart from macronutrients like NPK, ... Crush or Dissolve. If you have expired vitamins in pill form, you can crush them to make it easier to mix. Or, you can mix them in water to make a vitamin rich solution. ...