Quote:
Originally Posted by PR-Giants
If you do a forum search and look in the soil additive section of the forum this has been discussed in pretty good detail. Some of the info you can use, but there's also a lot of nonsense. Although, if you use some common sense you should be fine.
Most folks realize lump charcoal is a fuel and not a quality biochar. Lump charcoal is fairly hard and heavy and would probably need a large hammer to crush it.
Fortunately most folks are able to realize that as more of it's fuel is burned it becomes lighter, easier to crush, with an increased capacity to hold more air, moisture, and microorganisms, making it a more useful soil additive.
If you buy lump charcoal also buy a match. 
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Ferns love the mix...that charcoal makes.
Split a few plants today using crushed bagged charcoal in the mix..
I have a few more plants to freshen up before winter with this great charcoal additive.
Great stuff as a soil enhancer for container plants.
If you can make some ...do try it, it is inexpensive and it lasts forever.
Unfortunately this responder does not agree and rather make fun of the post.
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Fern collection by
Hostafarian,
on Flickr