Q.how to prune a pine tree
I have some sort of pine trees in my front garden – they stand about 6 feet tall and are getting wider and wider. This is the problem. I want to trim them up but the insides of them appear to be nothing but dead branches. I’m thinking if I take the hedge trimmers to them I’ll end up with 6 ft tall dead branches. What am I supposed to do (short of ripping them all out)? Thank you.
I have similar issues with Blue Spruce in my front yard.
We have opted to remove all the lower branches about 8 feet up. This distance allows us to walk under the trees, mow and still leaves enough branches so that the trees don't look like umbrellas.
Here are some articles that will help you.