Help on getting my first job at 15?

im 15 and i want a job because i have alot of time in the summer and i want the money. i would like a job that has hours preferably from no earlier than 8 to no later than 5 (i have football camp all summer from 6-8 A.M. or 5-7 P.M.). i have never had a official job before, but i would like to work at a landscaping Company, for i have knowledge and experience in landscaping, also because i am physically fit and the exercise will be good. i will also take jobs like a BusBoy or something of the sort. i would not like a job that requires much talking because i have a slight stutter and talking is hard and people find it annoying. so my question is what good jobs (under my criteria) would be easy to get and have good pay? also how do i get a job (call, walk in and ask)?