What is 'fertilizer'?

What is 'fertilizer'?

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...

Fertilizers are compounds that are added to, either the soil or the foliage of plants, to improve growth. We can have organic or inorganic fertilizers. Other types of fertilizers include granular, foliar spray, or soil drench. Soil drench is where we water the plant in with a water soluble fertilizer.