PlantMacronutrient.
A nutrient that plants require in relatively large amounts compared with micronutrients.
What it means for your plants
Nitrogen, phosphorus, and potassium are familiar examples, but the complete nutrient picture extends beyond the three large numbers on a fertilizer label. More nutrient is not always better.
IN PRACTICE
A plant needs adequate light and functioning roots to use a well-chosen fertilizer effectively.
Put it into practice
Decode nitrogen, phosphate, and potash on fertilizer labels and learn why concentration, dilution, and micronutrients matter.
NPK numbers explained: reading a fertilizer label