Even the most impeccable lawns will have the occasional dandelion. Dandelions are weeds that spread with devilish speed and can choke your grass and flowers. If they’re not taken care of from the root of the problem (quite literally!), they can grow right back. Thus, the best way to confront the dandelions in your lawn is to kill the whole plant, root and all. This cannot be done by just hand-plucking them off the ground since their taproots usually grow up to 3 feet underground. Here’s where dandelion killer sprays come in handy. We would review 5 best dandelion killer sprays for your lawn.