Dandelions are a common and plentiful weed.  Nothing is more frustrating than mowing your lawn, and seeing dandelions pop back up the very next day! Although Dandelions blooms are most common in the spring, the weed stays alive throughout the summer, and some of the plants will bloom again  later in the year.  Dandelions are very easy for us to kill, but will soon return without regularly scheduled applications of fertilizer and weed control.