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Soil test results in. What should I do?

Posted on 7/29/25 at 12:10 pm
Posted by Kunu
Member since Jan 2016
58 posts
Posted on 7/29/25 at 12:10 pm
Moved into new construction house in May. Zoysia sod has been struggling from the get go, despite frequent watering.

Finally got around to a soil test. Results came in today.

LINK

LINK

Is it too hot to fertilize right now? Or should I just make it through the summer and start trying to optimize everything toward end of summer?

LINK

LINK
This post was edited on 7/29/25 at 4:41 pm
Posted by Trout Bandit
Baton Rouge, LA
Member since Dec 2012
14842 posts
Posted on 7/29/25 at 12:16 pm to
Fertilize it man. Your zoysia should be thriving right now.
Posted by LOL
Member since Jun 2015
540 posts
Posted on 7/29/25 at 12:40 pm to
Zoysia Calendar, Univeristy of Georgia

First thing you want to do is focus on that PH level. 6.5-7 is the goal for Zoysia. To do this, put down some lime. You are probably going to need about 80-120 lbs of lime.


Once that is up, hit it with a well balanced fert of your choice.

WATER, WATER, WATER

Your lawn basically needs everything.

I would do 1.5x the nitrogen they say to put once it starts to cool off.

Lowes Stagreen 20-0-0 Amonium Sulfate is an incredible source of nitrogen. Easily the best fert they have put out in a while. It is the purest form of nitrogen that you can legally buy.
This post was edited on 7/29/25 at 12:47 pm
Posted by bayoubengals88
LA
Member since Sep 2007
23479 posts
Posted on 7/29/25 at 1:48 pm to
How frequently are you watering?
Too much frequency, not enough depth, is a problem.

Soil test are a waste of time and money 95% of the time.

1.5” of water per week, 6 mows per month, nitrogen, sun.
That’s all you need.
Posted by Kunu
Member since Jan 2016
58 posts
Posted on 7/29/25 at 1:49 pm to
How soon after the lime would you fertilize? My lawn is already stressed. The only spots the look good are near shadier areas or where the dog has peed.
Posted by Kunu
Member since Jan 2016
58 posts
Posted on 7/29/25 at 1:51 pm to
Unless rain is in the forecast, usually about 45 min in the evenings. I leave for work at 5:30 am, so I can’t really do it in the mornings like I’d prefer.
Posted by bayoubengals88
LA
Member since Sep 2007
23479 posts
Posted on 7/29/25 at 2:07 pm to
Every day?!
You may want to invest in a $40 timer.
Watering that often in the evening is an open invite for disease.

Water 1-2 per week at 5-7 AM in the absence of rain.
Posted by Kunu
Member since Jan 2016
58 posts
Posted on 7/29/25 at 2:10 pm to
If I don’t kept up with it frequently the grass fries. The soil is essentially sand and clay so I feel like it doesn’t retain moisture at all. I’ll send pics when I get home.
Posted by bbvdd
Memphis, TN
Member since Jun 2009
28104 posts
Posted on 7/29/25 at 2:23 pm to
quote:

The soil is essentially sand and clay so I feel like it doesn’t retain moisture at all.


Don't take this the wrong way but you need to start over.

You need to amend the soil under the sod if you want to have anything thrive in your yard. You have to break up the clay and add top soil into the clay.

Otherwise the grass will always struggle. Water won't get into the clay and the roots won't go as deep as they should.
Posted by Kunu
Member since Jan 2016
58 posts
Posted on 7/29/25 at 2:36 pm to
I hear you. Im hoping adding nutrients will help but I think ultimately in the fall I’ll end up scalping, aerating, top dressing and over-seeding. Not only is the soil nutrient deficient, it’s ridiculously compacted in most places.
Posted by LOL
Member since Jun 2015
540 posts
Posted on 7/29/25 at 3:32 pm to
Yeah Bayoubengal is right. Watering that frequently in the evening will bring on fungus and disease.

Gypsum will amend the soil to make it loamier, but it will take hundreds of pounds and a few years to see results.

You don't have to wait between fertilizing and putting down lime. You can do them at the same time. But if you feel like your yard is under a lot of stress right now, something with a lower nitrogen ratio may be better. Something around 10-10-10 or a slow-release source of nitrogen.

Top dress with a finely screened blend of sand and topsoil from a local supplier.

Get a leveling rake from Walmart.
This post was edited on 7/29/25 at 3:39 pm
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