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fixing sinkholes under new sod
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Posted by
neutralmilk 8 (
My Page) on
Mon, Apr 26, 10 at 12:38
| We installed the sod 3.5 weeks ago and there is one area where we had applied about 1 foot of top soil due to previous erosion along one side of the driveway. Apparently it was not packed down firmly in some areas because with the hard rain the other night we saw a few sinkholes about 2 sq ft in size. I basically pulled up the sod and filled in with more dirt, but I'm wondering if this type of trauma will kill the grass in that area or if it should take root again and be fine. Any thoughts? |
Follow-Up Postings:
RE: fixing sinkholes under new sod
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| You did the right thing. That's all you can do. Now step on the grass where you pulled it up to get good sod to soil contact. Roots cannot grow through the air to reach the soil underneath. Any kind of zone 8 sod will recover by June. Uh, you didn't sod zoysia did you? |
RE: fixing sinkholes under new sod
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| Yes Mr. Hall it is Palisades Zoysia. You may remember the other issue I have from my other post you responded to. (http://forums2.gardenweb.com/forums/load/lawns/msg0418055422395.html?
3). I did have some follow up questions there so maybe you have some more input regarding the fungus issue. Thanks for your help. |
RE: fixing sinkholes under new sod
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| Okay I replied over there to those issues. With this issue here, lifting the soil would set the zoysia back. But it had to be done. It won't recover by June. Did you consider St Augustine? |
RE: fixing sinkholes under new sod
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| Unfortunately I'm continuing to see soil erosion under the sod in this one area. It's a 3 foot strip right along the edge of the driveway, and when it rains there is a gutter downspout that empties out right along that edge. I've continued to add soil but that area is looking mighty lumpy at this point. Maybe I need to put in a retaining wall. If there is any good news at least the roots are looking healthy when i pull it up. Hopefully they'll take hold again. I did consider St. Augustine, but went with Palisades Zoysia because I was told it is the most shade tolerant and I have a lot of shade. Strangely enough, the most heavily shaded areas (some get little to no sun) look the lushest. |
RE: fixing sinkholes under new sod
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| I did consider St. Augustine, but went with Palisades Zoysia because I was told it is the most shade tolerant Sorry but you were lied too. There is no better shade tolerant warm season grass than Saint Augustine. Depending on the Zoysia variety (manilla being the best which Palisades is not a member) only has fair to poor shade tolerance. Only slightly better than Bermuda. |
RE: fixing sinkholes under new sod
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| Well not only from what I was told by the seller, but by all accounts I've read, Palisades is right up there with the best as far as shade tolerance, ranked as "good" in most accounts. Around 5 hours of sunlight required matches anything I've seen regarding a St. Augustine. I don't know much about grass at all, but I've learned in the last few weeks that people either love zoysia or hate it. Guess I'll just cross my fingers and hope it works out. I certainly won't be resodding anytime in the near or distant future. |
RE: fixing sinkholes under new sod
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| Please keep us up to date on that. Palisades is very rare in Texas. It will be interesting to learn about how it tolerates our alkaline soils. |
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