secondary use for my growing mix?

njitgradSeptember 17, 2013

I have several 20 to 30 gallon grow bags that I used for tomatoes, peppers, eggplant, and other plants this summer. They all contain a 50/50 mixture of ProMix BX and compost (bagged, store bought).

Over the growing season I fed the plants Tomato Tone, Veggie Tone, and more bagged compost, all three as needed.

I will be cleaning out these containers next week. Is spreading this mix on my lawn's bare spots and re-seeding those areas not considered a good idea?

It is healthy soil after all.

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MulchMama

Sounds like a good plan to me.

    Bookmark   September 17, 2013 at 9:06AM
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gsweater

I do it all the time as well. Good thing about potting mix, is that the plants zap a good chunk of the nutrients out of it quickly when in the pots (bags). Since you didn't use crap ferts like say, Miracle-Gro, salt buildups should be minimal. That said, overdosing on NPK isn't likely.

Keep in mind that it will break down rather quickly due to all the organic matter - come Spring, it may be near where you are now and look like you did nothing due to compaction and microorganisms breaking it down. If you keep after it, the low spots will fill in nicely in time and you have the benefit of great recycled soil! If you run out of low spots, spread the remainder in a thin even layer over your lawn about a 1/4-1/2 inch thick in thin areas - will give a nice organic boost!

    Bookmark   September 17, 2013 at 9:07PM
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MulchMama

Miracle-Gro is fine. We're talking potting medium from a pot put onto a lawn. Whatever fertilizer salts are in the pot will dissipate quickly, not that they would be harmful to begin with.

People get WAY too fussy about this stuff.

    Bookmark   September 18, 2013 at 3:07PM
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