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#1
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Lawn renovation - aerate or dethatch?
Those are my two choices before overseeding my 12,000 sq ft lawn in
central NJ. Few companies offer dethatching, but I'm not sure if that's for their convenience or because aerating is really the best way to go. I would describe the lawn as good; not the best or the worst in the neighborhood. Soil is loam. Problems are bare spots, clover, crabgrass and a few misc weeks. I keep after the dandelions, so they are under control. Regarding aerating: The seeds that fall into the holes are about 1.5 inches below the soil surface, far below the fraction of an inch seed companies recommend. While these seeds won't have any soil covering them, will they still germinate properly? And if they do, when fully established will the grass from the seeds in the holes look different from the surrounding grass? TIA for your responses. R1 |
#2
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Lawn renovation - aerate or dethatch?
On Sep 2, 9:49*am, Rebel1 wrote:
Few companies offer dethatching, but I'm not sure if that's for their convenience or because aerating is really the best way to go. Follow the recommendations of your landscaper. If you presume to tell him how to do his job, you are responsible for the results, and you're paying for both his labor, materials and expertise. ----- - gpsman |
#3
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Lawn renovation - aerate or dethatch?
On 9/2/2011 8:49 AM, Rebel1 wrote:
Those are my two choices before overseeding my 12,000 sq ft lawn in central NJ. Few companies offer dethatching, but I'm not sure if that's for their convenience or because aerating is really the best way to go. I would describe the lawn as good; not the best or the worst in the neighborhood. Soil is loam. Problems are bare spots, clover, crabgrass and a few misc weeks. I keep after the dandelions, so they are under control. Regarding aerating: The seeds that fall into the holes are about 1.5 inches below the soil surface, far below the fraction of an inch seed companies recommend. While these seeds won't have any soil covering them, will they still germinate properly? And if they do, when fully established will the grass from the seeds in the holes look different from the surrounding grass? Neither is "better" than the other; they're two different operations to take curative action against two different problems. Which your lawn needs (if either) is indeterminate from the information given. All in all, the action outlined above isn't likely to solve the actual problems in the lawn long-term as it's treating a symptom rather than looking at the root cause(s) for the specific issues. As example, of specific issues mentioned--clover is symptomatic of low-nitrogen soils; it's a legume (means it sets N) and is in fact very beneficial in low-N soils. As N builds up over several years you'll find it will gradually fade in abundance relative to the grasses and you'll get an automagic improvement at the cost of simply some patience, not dollars. Bare spots may be showing locations where there are other specific soil problems such as rock under the surface, clay deposits or simply thin topsoil left after the lot was prepared. Simply throwing more seed down without determining the reason existing didn't make it in those locations is a highly risky business in terms of the likelihood of the monies spent actually providing the desired results. Start w/ a good soil analysis concentrating on the problem areas; w/o that all else is futile. Follow-up by contacting local ag county agent office; even most urban areas have such that have advice and information/guidance customized to local conditions. -- |
#4
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Lawn renovation - aerate or dethatch?
On Sep 2, 6:49*am, Rebel1 wrote:
Those are my two choices before overseeding my 12,000 sq ft lawn in central NJ. Few companies offer dethatching, but I'm not sure if that's for their convenience or because aerating is really the best way to go. I would describe the lawn as good; not the best or the worst in the neighborhood. Soil is loam. Problems are bare spots, clover, crabgrass and a few misc weeks. I keep after the dandelions, so they are under control. Regarding aerating: The seeds that fall into the holes are about 1.5 inches below the soil surface, far below the fraction of an inch seed companies recommend. While these seeds won't have any soil covering them, will they still germinate properly? And if they do, when fully established will the grass from the seeds in the holes look different from the surrounding grass? TIA for your responses. R1 Would you consider turning all or part of the lawn to other uses? Ex: Food crops. Even in New Jersey you have enuff growing season for many food crops, like tomatoes, green onions, beans, peas, corn, etc. When the snow comes, let the earth sleep under its white blanket. Another, or supplementary, choice would be decorative shrubs/plants suitable for the area. Intersperse with bark mulch -- very attractive look. Leave a much smaller patch of lawn for little humans and canines to play on during summer. (Be sure not to use pesticides and herbicides KNOWN to harm little humans. Little canines probably are too smart to expose themselves. (Of course they have other habits that need, uh, re-training). Try rec.gardens for experienced advice on your original question. HB |
#5
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Lawn renovation - aerate or dethatch?
On Sep 2, 9:49*am, Rebel1 wrote:
Those are my two choices before overseeding my 12,000 sq ft lawn in central NJ. Few companies offer dethatching, but I'm not sure if that's for their convenience or because aerating is really the best way to go. I would describe the lawn as good; not the best or the worst in the neighborhood. Soil is loam. Problems are bare spots, clover, crabgrass and a few misc weeks. I keep after the dandelions, so they are under control. Regarding aerating: The seeds that fall into the holes are about 1.5 inches below the soil surface, far below the fraction of an inch seed companies recommend. While these seeds won't have any soil covering them, will they still germinate properly? And if they do, when fully established will the grass from the seeds in the holes look different from the surrounding grass? TIA for your responses. R1 Depends. Dethatch if there is a lot of thatch under your grass. Once rasied the excess thatch should be removed. If you ground is compacted too much and not draining well then aerate. I like to follow up aeration with an application of lime and gypsum or just gypsum alone if your lawn doesn't need lime. Many do. |
#6
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Lawn renovation - aerate or dethatch?
On Fri, 02 Sep 2011 09:49:33 -0400, Rebel1
wrote: Those are my two choices before overseeding my 12,000 sq ft lawn in central NJ. Few companies offer dethatching, but I'm not sure if that's for their convenience or because aerating is really the best way to go. I would describe the lawn as good; not the best or the worst in the neighborhood. Soil is loam. Problems are bare spots, clover, crabgrass and a few misc weeks. I keep after the dandelions, so they are under control. You don't want to remove _all_ the thatch. Doing so, you reduce moisture and possibly open to grass to disease or such. Regarding aerating: The seeds that fall into the holes are about 1.5 inches below the soil surface, far below the fraction of an inch seed companies recommend. While these seeds won't have any soil covering them, will they still germinate properly? And if they do, when fully established will the grass from the seeds in the holes look different from the surrounding grass? There are two main ways to aerate: machines with long thin tines that just puncture to lawn and the machines that remove cores -- plugs from the ground. Coring is better as it opens to soil up, allowing oxygen, nutrients to get at the roots. The seeds will germinate in the "cored" lawn. Just drop some extra seeds. The core plugs should be left on the ground. They will break down in a few weeks. Your soil is loam so I suspect the seeds will take easily with proper watering. Use "new" seeds, if they are older seeds broadcast more seed. If you rent a coring machine or pay to have it done, this will also take out some thatch at the same time. See what James said about lime or gypsum... |
#7
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Lawn renovation - aerate or dethatch?
On 9/2/2011 1:42 PM, Oren wrote:
.... See what James said about lime or gypsum... OTOH, see what I said about soil testing... _Anything_ added w/o knowing the conditions from which are starting is potentially just a waste of money and possibly even making the cause of the problem worse instead of better... -- |
#8
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Lawn renovation - aerate or dethatch?
On Fri, 02 Sep 2011 09:49:33 -0400, Rebel1
wrote: Those are my two choices before overseeding my 12,000 sq ft lawn in central NJ. Few companies offer dethatching, but I'm not sure if that's for their convenience or because aerating is really the best way to go. I would describe the lawn as good; not the best or the worst in the neighborhood. Soil is loam. Problems are bare spots, clover, crabgrass and a few misc weeks. I keep after the dandelions, so they are under control. Regarding aerating: The seeds that fall into the holes are about 1.5 inches below the soil surface, far below the fraction of an inch seed companies recommend. While these seeds won't have any soil covering them, will they still germinate properly? And if they do, when fully established will the grass from the seeds in the holes look different from the surrounding grass? TIA for your responses. R1 2 totally different procedures - with 2 totally different purposes. Personally I'd do both. Core aerate first - then dethatch. The core holes will fill with loose material and the seeds will be able to contact actual soil instead of thatch. |
#9
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Lawn renovation - aerate or dethatch?
On 9/2/2011 12:15 PM, Higgs Boson wrote:
Would you consider turning all or part of the lawn to other uses? Ex: Food crops. Even in New Jersey you have enuff growing season for many food crops, like tomatoes, green onions, beans, peas, corn, etc. When the snow comes, let the earth sleep under its white blanket. Thanks to deer (and to a lesser degree squirrels and groundhog and an occasional rabbit, food crops would be challenging. Another, or supplementary, choice would be decorative shrubs/plants suitable for the area. Intersperse with bark mulch -- very attractive look. Leave a much smaller patch of lawn for little humans and canines to play on during summer. (Be sure not to use pesticides and herbicides KNOWN to harm little humans. Little canines probably are too smart to expose themselves. (Of course they have other habits that need, uh, re-training). No little humans or canines to consider. I'm single. Try rec.gardens for experienced advice on your original question. HB Thanks for the thoughtful suggestions. R1 |
#10
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Lawn renovation - aerate or dethatch?
On 9/2/2011 10:12 AM, dpb wrote:
On 9/2/2011 8:49 AM, Rebel1 wrote: Those are my two choices before overseeding my 12,000 sq ft lawn in central NJ. Few companies offer dethatching, but I'm not sure if that's for their convenience or because aerating is really the best way to go. I would describe the lawn as good; not the best or the worst in the neighborhood. Soil is loam. Problems are bare spots, clover, crabgrass and a few misc weeks. I keep after the dandelions, so they are under control. Regarding aerating: The seeds that fall into the holes are about 1.5 inches below the soil surface, far below the fraction of an inch seed companies recommend. While these seeds won't have any soil covering them, will they still germinate properly? And if they do, when fully established will the grass from the seeds in the holes look different from the surrounding grass? Neither is "better" than the other; they're two different operations to take curative action against two different problems. Which your lawn needs (if either) is indeterminate from the information given. All in all, the action outlined above isn't likely to solve the actual problems in the lawn long-term as it's treating a symptom rather than looking at the root cause(s) for the specific issues. As example, of specific issues mentioned--clover is symptomatic of low-nitrogen soils; it's a legume (means it sets N) and is in fact very beneficial in low-N soils. As N builds up over several years you'll find it will gradually fade in abundance relative to the grasses and you'll get an automagic improvement at the cost of simply some patience, not dollars. Bare spots may be showing locations where there are other specific soil problems such as rock under the surface, clay deposits or simply thin topsoil left after the lot was prepared. Simply throwing more seed down without determining the reason existing didn't make it in those locations is a highly risky business in terms of the likelihood of the monies spent actually providing the desired results. Start w/ a good soil analysis concentrating on the problem areas; w/o that all else is futile. Follow-up by contacting local ag county agent office; even most urban areas have such that have advice and information/guidance customized to local conditions. Thanks for raising excellent points I hadn't considered. R1 |
#11
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Lawn renovation - aerate or dethatch?
On Sep 2, 10:12*am, dpb wrote:
On 9/2/2011 8:49 AM, Rebel1 wrote: Those are my two choices before overseeding my 12,000 sq ft lawn in central NJ. Few companies offer dethatching, but I'm not sure if that's for their convenience or because aerating is really the best way to go. I would describe the lawn as good; not the best or the worst in the neighborhood. Soil is loam. Problems are bare spots, clover, crabgrass and a few misc weeks. I keep after the dandelions, so they are under control. Regarding aerating: The seeds that fall into the holes are about 1.5 inches below the soil surface, far below the fraction of an inch seed companies recommend. While these seeds won't have any soil covering them, will they still germinate properly? And if they do, when fully established will the grass from the seeds in the holes look different from the surrounding grass? Neither is "better" than the other; they're two different operations to take curative action against two different problems. *Which your lawn needs (if either) is indeterminate from the information given. All in all, the action outlined above isn't likely to solve the actual problems in the lawn long-term as it's treating a symptom rather than looking at the root cause(s) for the specific issues. As example, of specific issues mentioned--clover is symptomatic of low-nitrogen soils; it's a legume (means it sets N) and is in fact very beneficial in low-N soils. *As N builds up over several years you'll find it will gradually fade in abundance relative to the grasses and you'll get an automagic improvement at the cost of simply some patience, not dollars. Bare spots may be showing locations where there are other specific soil problems such as rock under the surface, clay deposits or simply thin topsoil left after the lot was prepared. *Simply throwing more seed down without determining the reason existing didn't make it in those locations is a highly risky business in terms of the likelihood of the monies spent actually providing the desired results. Start w/ a good soil analysis concentrating on the problem areas; w/o that all else is futile. *Follow-up by contacting local ag county agent office; even most urban areas have such that have advice and information/guidance customized to local conditions. -- Agree with the above excellent advice. You de-thatch if you have excessive thatch. That can be determined by lifting a section of turf and looking at the edges. Thatch is the layer of dead grass material near the surface. It's normal to have up to about 1/2" or so. It only becomes a problem when it's so thick it prevents water and nutrients from getting into the soil. In that case, it acts like a thatch roof. You aerate to reduce soil compaction. If those problems don't exist, then I would rent a slit seeder, also called an overseeder. Basicly it cuts grooves of selectable depth and drops seed. It will cause less damage to the existing turf than either de-thatching or core aeration. Local tool rentals or HomeDepot have them. |
#12
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Lawn renovation - aerate or dethatch?
On Sat, 03 Sep 2011 14:24:40 -0500, Vic Smith
wrote: Start w/ a good soil analysis concentrating on the problem areas; w/o that all else is futile. Follow-up by contacting local ag county agent office; even most urban areas have such that have advice and information/guidance customized to local conditions. Thanks for raising excellent points I hadn't considered. Sound like he knows what he's talking about. I live a long mile from the local county ext. office. I had it completely mistaken for a college campus "annex". Went there finally. Walked right in, they gave me pamphlets for my area...then I signed for the e-mail from a local master gardener. I can't read all that mail :-/ I did get great service and attention to my questions. |
#13
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Lawn renovation - aerate or dethatch?
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