All Things Gardening forum: Recycling Wood Ashes

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Name: Frank Richards
Clinton, Michigan

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Feb 2, 2018 5:11 PM CST
Informative article from Missouri Environment & Garden NEWSLETTER
Name: greene
Savannah, GA (Sunset 28) (Zone 8b)
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Feb 2, 2018 9:35 PM CST
That was very helpful. Thanks. I sent you an acorn!
Sunset Zone 28, AHS Heat Zone 9, USDA zone 8b~"Leaf of Faith"
Minnesota (Zone 3b)
Feb 4, 2018 12:49 PM CST
Very interesting.
My south garden and the entire area around it, for near a thousand miles square, has naturally acidic soil, with, by me, naturally acidic water, for those in town who used well water, crop irrigation is rare down there, but no one down there, and both of my grand parents were farmers, ever applied lime to the soil.
The area is considered some of the best soil in Minn.
This is why I always wonder about the articles that say you must lime acidic soil but then we have black gumbo which is in a class by itself.
Name: David Tillyer
New York City
Feb 11, 2018 2:44 PM CST
Here's a question. I know that pine bark mulch is too acid for vegetables and the like. However, if you burn limbs off an old dead pine tree, are the ashes too acid?
Name: Sue
Ontario, Canada (Zone 4a)
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Feb 13, 2018 6:03 AM CST
Pine bark mulch does not have much, if any, acidifying effect on the soil. I would not add ashes to a garden without having had a soil ph test first, or do you already know the soil pH?
Minnesota (Zone 3b)
Feb 13, 2018 2:20 PM CST
BigAppleRoseGuy said:Here's a question. I know that pine bark mulch is too acid for vegetables and the like. However, if you burn limbs off an old dead pine tree, are the ashes too acid?

Ashes are alkaline.

Feb 16, 2018 5:17 AM CST
I never throw away ashes.
I soak them in water and use the water on potted plants.
You can evaporate the water to concentrate the potassium. You can refine it into potassium hydroxide (lye). Potash was once a very valuable resource.
I just use the water though.

No need to soak them however.
Spread the ashes around the roses with a little horse manure and cut grass.

Take it from me. Unknown internet dude on my second post..
Seriously though. Google it.
Ashes contain everything your plant needs, except nitrogen. Acidity depends on type of wood or plant burned, how green the material is, burning conditions, and on how complete the burn was.

Unless you're burning trash, I'll bet all my acorns that most folks can find a place for them.

[Last edited by terran1 - Feb 16, 2018 5:19 AM (+)]
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