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Old 03-18-2009, 09:04 PM
BostonBull BostonBull is offline
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Downside?

I am wondering if there are any downsides to leveling off parts of my yard with compost instead of loam? I also am making two new small planting areas, and was planning on taking the top 6"+ of current soil away, and backfilling with compost instead of loam. What issues may arise from this? Any?
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Old 03-18-2009, 09:17 PM
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JDUtah JDUtah is offline
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SOM degenerates over time
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Old 03-18-2009, 10:15 PM
BostonBull BostonBull is offline
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SOM degenerates over time
I am glad I asked this amateur question then. I will just top dress the lawn, andd mix in an inch or two of compost into the new planting areas before planting.......
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Old 03-19-2009, 02:14 AM
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JDUtah JDUtah is offline
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That's what I would do... otherwise you could end up with waves in the lawn. if you can assure an even distribution (and till in) of the compost it would do good.
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Old 03-19-2009, 10:11 AM
Kiril Kiril is offline
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Originally Posted by BostonBull View Post
I also am making two new small planting areas, and was planning on taking the top 6"+ of current soil away, and backfilling with compost instead of loam. What issues may arise from this? Any?
When I design planting areas/beds, I always leave 3-5 inches for mulch and the inevitable buildup of soil over time.

Leveling should be done with topsoil.
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Old 03-19-2009, 04:14 PM
quackgrass quackgrass is offline
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Quote:
Originally Posted by BostonBull View Post
I am wondering if there are any downsides to leveling off parts of my yard with compost instead of loam? I also am making two new small planting areas, and was planning on taking the top 6"+ of current soil away, and backfilling with compost instead of loam. What issues may arise from this? Any?
I would use a 50/50 blend of compost and topsoil. Compost alone won't have any sand particles. You want at least 10% sand because the grass will be able to establish a better root zone if it has sand particles to anchor to.

You also want the topsoil to provide some structure, especially when it gets soggy.

The grass will germinate and grow much better if it isn't a straight compost, you need some soil with a little sand.
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Old 03-21-2009, 01:33 PM
ICT Bill ICT Bill is offline
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I agree with mixing with top soil, if you have an extending wet period compost has a hard time drying out right away and roots can literally rot in an all compost mix
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