Horticultural Charcoal Brand

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pwk5017

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Ok, I know a lot of people use a splash of charcoal in their mixes. I was going to try using some this year, but I am not sure what to buy. The other thread on this subject went into extreme detail(cypress, I think that was you), which is all well and good for knowing what temps to fire charcoal at etc. but what brands are suitable for bonsai? Currently, I am looking at two products on amazon(free prime)
http://www.amazon.com/Hoffman-17502...241473&sr=8-1&keywords=horticultural+charcoal
http://www.amazon.com/Black-Gold-13...241473&sr=8-2&keywords=horticultural+charcoal

I have inquiries into their companies about the specifics of firing temp, added chemicals etc. If someone has a great product they use, I would like to hear about it. Thanks
 
tmpgh said:
Couldn't you use any lump charcoal?
Click to expand...

The natural ones...YES, just break them. Not the briquettes.

I actually bought a big bag (25# I think) from Costco for less than $15.00. I haven't used it yet though. I know it will be messy breaking then sifting it. I intend on breaking them inside smaller bags with a mallet on my concrete patio floor. We will see if it is worth the effort. LOL
 
Last edited:
That's what I said... Lump charcoal. Lowes and HD sell it for 12 bucks per 20 or 30 pound bag.
 
I use the hoffmans too. I tried a bulk place on ebay, but the sizing was all over the place. Big pieces that if I tried to break up, I got a ton of powder.... not worth it. Hoffmans is just the right size.
 
Poink88 said:
The natural ones...YES, just break them. Not the briquettes.

I actually bought a big bag (25# I think) from Costco for less than $15.00. I haven't used it yet though. I know it will be messy breaking then sifting it. I intend on breaking them inside smaller bags with a mallet on my concrete patio floor. We will see if it is worth the effort. LOL
Click to expand...

Im not sure, can you use regular lump charcoal? haha the other thread took it too far I think. All the research that was being presented made it seem like temperature was a HUGE factor in how the charcoal performed. It seems like not all charcoal is created equal. Fired too high, and it didn't support bacteria. Too low, and its hydrophobic and doesn't support a ton of bacteria. Fired just right and its a bacteria machine! So, how do you know the temperature at which your lump charcoal was fired?

patrick
 
pwk5017 said:
Im not sure, can you use regular lump charcoal? haha the other thread took it too far I think. All the research that was being presented made it seem like temperature was a HUGE factor in how the charcoal performed. It seems like not all charcoal is created equal. Fired too high, and it didn't support bacteria. Too low, and its hydrophobic and doesn't support a ton of bacteria. Fired just right and its a bacteria machine! So, how do you know the temperature at which your lump charcoal was fired?

patrick
Click to expand...

That is wayyyy deeper than I can fathom...I use charcoal that is it. :p
 
All I know is...don't heat it enough and you have wood. Over and you have ash. Do it right and you have charcoal. ;)
 
Better CEC than akadama or turface? Is this usually used in soil mixes for conifers or deciduous trees or both?
 
pwk5017 said:
Im not sure, can you use regular lump charcoal? haha the other thread took it too far I think. All the research that was being presented made it seem like temperature was a HUGE factor in how the charcoal performed. It seems like not all charcoal is created equal. Fired too high, and it didn't support bacteria. Too low, and its hydrophobic and doesn't support a ton of bacteria. Fired just right and its a bacteria machine! So, how do you know the temperature at which your lump charcoal was fired?

patrick
Click to expand...

Haha, yea really. I'm going to have to reread everything I wrote in that thread again. I was just trying to present all relevant and seemingly credible information on the topic I could find. It took me a while to really track down some half way decent info on the science of charcoal/bio-char. So I figured I'd put it all in one thread... it still confuses me though.

There's this growing supply store here in my town that I went to check out the other week and one of their big things is making custom soils. But I ended up talking to the owner about Bio-Char (charcoal) and this is a topic he's been researching for years and has been working on creating the best version of it. He showed me a few samples that he had, and though he's not really selling it yet it sounds like he wants to give me a bunch for free to try out in my bonsai soil. Almost testing his product. The stuff looks legit. One thing he was saying to me was that the more shine or sheen the charcoal has, the better, and showed me the difference between two kinds.
 
Cypress said:
Haha, yea really. I'm going to have to reread everything I wrote in that thread again. I was just trying to present all relevant and seemingly credible information on the topic I could find. It took me a while to really track down some half way decent info on the science of charcoal/bio-char. So I figured I'd put it all in one thread... it still confuses me though.

There's this growing supply store here in my town that I went to check out the other week and one of their big things is making custom soils. But I ended up talking to the owner about Bio-Char (charcoal) and this is a topic he's been researching for years and has been working on creating the best version of it. He showed me a few samples that he had, and though he's not really selling it yet it sounds like he wants to give me a bunch for free to try out in my bonsai soil. Almost testing his product. The stuff looks legit. One thing he was saying to me was that the more shine or sheen the charcoal has, the better, and showed me the difference between two kinds.
Click to expand...

Looks like it can be manipulated...and I am more suspicions now since he is marketing it. Shine or sheen is more related to the quality or hardness of the wood you used to make charcoal out of...not how it was charred. JMHO
 
bonsairxmd said:
Better CEC than akadama or turface? Is this usually used in soil mixes for conifers or deciduous trees or both?
Click to expand...

As far as I know yes re: CEC. And yes to both D & C trees.

There are more intelligent people here you should wait for good answers/input though.
 
Poink88 said:
Looks like it can be manipulated...and I am more suspicions now since he is marketing it. Shine or sheen is more related to the quality or hardness of the wood you used to make charcoal out of...not how it was charred. JMHO
Click to expand...

Maybe he just likes shiny things...
 
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