Water is delivered slowly below the turf, through deep watering stakes or a deep root tool set 12 to 18 inches into the soil around the dripline, so the tree gets a deep soak without leaving the grass soggy. Watering only when the top few inches of soil are dry keeps both tree and lawn out of wet soil.

Why can deep watering a tree harm a lawn?

Because a mature tree needs about 10 gallons per inch of trunk diameter, and that much water poured onto turf can leave grass waterlogged or run off. Tree roots also sit 12 to 18 inches down, below most grass roots, so water that stays near the surface serves the lawn more than the tree.

How can water reach tree roots below the lawn?

Through openings set into the soil at points around the dripline, the ground beneath the outer edge of the branches. Deep watering stakes do this, and Deep Drip 24" Tree Watering Stakes are set into the lawn at 5 to 6 points around a well established tree.

How can the soil hold water for both lawn and tree?

With a soil treatment that keeps moisture in place longer. Compounds that attract and hold water in the soil are what Hydretain Root Zone Moisture Manager adds, sprayed over turf and root zones from a hose end, with one 32 ounce bottle covering up to 5,000 square feet.

Frequently Asked Questions

Do watering stakes leave holes in the lawn?

Only small openings. Each stake has a cap at the top that keeps debris out of the water zone.

Can a soaker hose be used on a lawn under a tree?

Yes. Run slowly for several hours and move between waterings, it avoids leaving one strip of grass soggy.

Do tree roots and grass compete for water?

Yes, near the surface. Grass takes up much of the water in the top few inches, which is why tree watering has to reach deeper.

Does a mulch ring help a tree growing in a lawn?

Yes. A ring of mulch 2 to 4 inches deep, kept away from the trunk, replaces the grass closest to the tree and its competition for water.