re: Grass/ground cover suggestion for yard with huge Oak trees...

quote:

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I put a couple inches of mulch from some ground stumps around a 15” red oak in my yard last year. It may have killed it. I raked it away when it was clear that the tree was in trouble. It’s not looking great but may survive.

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Was the mulch up to the tree? Oddly when you put mulch around an oak that tends to be a good thing but you cannot put it up to the tree itself The mulch needs to stop before it touches the collar/bark of the oak.