Lawn care for a newbie I (28F) am in charge of our lawn care, and I’m completely lost when it comes to fertilizer and weed care! I feel like my lawn is being over taken by weeds. I live in South East Idaho, and I have several different kinds of weeds in my yard.  Dandelions, a low-laying crawling weed with small leaves and yellow flowers, and a viney weed with purple/white flowers. What should I use to knock back the weeds and help my grass regenerate?