Help Trimming Red Maple
I planted a couple of Red Maples in my backyard in the hopes that one day they will be big. In the long run, I would prefer that the limbs are not so low that they prevent anyone from using the space below. With that being said, how high up should I trim the branches? Below is a picture with the line showing the top of the yardstick (3ft). How much higher should I go now?