What are the primary nutrients that plants need to grow?

What are the primary nutrients that plants need to grow?

Tracy DiSabato-Aust (Garden Designer and Author) gives expert video advice on: What is 'fertilizer'?; What is the difference between fertilizer and soil amendment?; What are the primary nutrients that plants need to grow? and more...

The primary nutrients that plants need to grow are nitrogen, phosphorous and potassium, usually listed as N, P and K. And there are three numbers that you will see listed on the fertilizer bags.