How do I stop the roots of a tree from killing my grass?

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gabagoo

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I have 2 blue spruce and a red maple tree on the front lawn...For the longest time I thought it was thre blue spruces killing the grass, but now have figured it is the root system of the maple tree that is causing this. Every year I reseed the areas and by mid July it is all dead again. I can see the roots starting to come above the surface. Not sure if I actually tore up the lawn and put new rolls down and built up the base if that would just be a futile attempt to keep fighting it. I should mention that this area is outside the drip zone too.
 

oldognewtrick

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Spring time. By July it dies again.
Plant your seed in the fall, run a plugger over it, then overseed. Cool season grasses build their root system over the cooler months. Hot summer heat saps to much moisture out of the grass in the summer time.
 

Sparky617

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Definitely plant grass in the fall. You could also add a top dressing of compost to the area, not thick only an inch or so after plug aeration. You don't want to get to thick with the compost over the tree roots. Maples tend to root pretty shallowly, you could expand the mulched area around the tree and just forget about grass.
 

DepotProTom

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As a retired landscaper, I ran into this very problem years ago. Top dressing, sod, none of these will work as the shallow roots of the Maple tree are way more superior that a little grass root. The Maple will suck up all the water and the nutrients in the soil leaving nothing for the grass to survive.
You have two choices. 1. Remove the maple tree and replant grass seed over new soil or
2. Make a beautiful rock garden around the Maple tree planting ivy or packasandra in the garden. Sorry to say, that is your only fix.
 

BuzzLOL

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I have red maples and the grass grows fine over their roots... but in drier weather you may have to water the grass there a couple times a week... plus maybe a little fertilizer... although I've never used it...
 

gabagoo

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The areas effected are not really under the tree so much so to have no grass in those area would look strange, I need to take a pic to show you... I will do some seed now but I will redo it in the fall as suggested. I also have 2 large blue spruce trees on either side of the maple.
 

ajaynejr

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In addition, the needles falling from the spruce trees will make the soil under them and a few feet beyond their drip lines more acidic than the grass likes. You may need to apply lime to the soil in that area.
 
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