New to the forum and the gardening world in general. I have ordered 20 green giants to be placed as a privacy screen down the left side of my property. The company would like to send them to me mid March. (I'm in Ohio, Zone 6). Mid March Temps are usually 45-50 for high, 25-30's for lows.
1. When planting is it bad to add additional dirt/compost in the hole? Reason is that a lot of my soild has a lot of rocks. I was planning on maybe a mixture of 3/4 original soil and 1/4 a mix of top soil/manure.
2. The Green Giants will stretch 120 Feet. So I need to kill grass for a 120 x 10 foot section. However, the grass is dormant and will be dormant until end April/May. I really don't want to wait to start this project. I'm looking to start in a few weeks. Should I plant the green Giants and around each one shovel the grass off (maybe a 2 foot circle) so the grass doesn't come that close. Then when the grass comes out of dormancy cover the green giants with something and lightly spray some roundup to kill existing grass or is this to dangerous because of the newly planted tree?