
Feeding plants is an important part of looking after them and it is key to keep them producing flowers, vegetables or fruit. However, being too eager and over-fertilizing plants is easily done and can lead to myriad potential issues.
Your plants will let you know if you over-fertilize them. They will show the scars of their roots being burnt by a buildup of excess nutrients in the soil in the form of discolored leaves, stunted growth, or shed foliage. You will even see crust from over-fertilizing on the soil.