Answer: Some lawns are worth trying to save and others are a lost cause and should be completely renovated. If there are more weeds than grass, you'd be better off starting from scratch. This involves killing all the vegetation (Round-Up works well; it's non-selective so be careful not to get it on any plants you want to keep!). After everything is dead, rototill the area and rake out all the debris, then spread a 4-5" layer of organic matter over the entire area and rototill it in. Then rake the area level, with a slight slope towards the street for good drainage. Broadcast grass seed, cover with a thin layer of peat moss to help keep the seeds from drying out (and to keep birds from feasting on your grass seed). Water as often as necessary to keep the seeds moist (several times a day if the weather is hot). Grass seed will sprout in 7-10 days. Early fall is a good time to renovate a lawn.
Best wishes with your new lawn!
Q&A Library Searching Tips