Q.Different Nutrients For Different Weeds
I was reading somewhere that if you have a dandelions you were supposed to add calcium, but what nutrients are you supposed to add if you have plantain, violets, and creeping Charlie (ground ivy), and how do you know how much to add?

Have your soil tested and follow the recommendations for limestone to raise soil pH (or sulfur to lower soil pH) and fertilizer applications. Maintaining proper soil pH and fertility levels is important for optimum performance of your lawn.