I made the huge mistake of planting some small saplings without putting mulch around them. Now it is 2 years later and they haven't grown much at all because of the grass taking all the moisture and nutrients.
Now I want to put mulch around them. I know I need to kill the grass before I apply mulch and I was wondering if roundup can be used to kill the grass without harming the trees.
If roundup gets on the trunk of the sapling will it kill it?
Is there anything other then roundup that can be used?
Any help will be greatly appreciated.