i am new to the lawn scene but am eager to learn. i am going to do a soil sample tommorow. but i suspect that since i live in virginia and have 50 yr old pine trees in the front yard (about 13) and i ws told by the worker at home depot that i need to lime my yard if the acid content is hard. any help please i aslo would like to know what type of grass i will need. i get approximately 4-5 hours of sunlight a day.