Author Topic: Grow stones  (Read 17688 times)

Dan James

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Grow stones
« on: February 10, 2015, 09:04 PM »
I came across growstones, expanded glass ?, potting medium at a local nursery. I'm thinking about trying it out.

Has any tried it ?

Dan
 

DorianJF

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Re: Grow stones
« Reply #1 on: February 10, 2015, 11:04 PM »
Never heard of it. Do you have a picture of it?
 

0soyoung

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Re: Grow stones
« Reply #2 on: February 10, 2015, 11:17 PM »
I came across growstones, expanded glass ?, potting medium at a local nursery. I'm thinking about trying it out.

Has any tried it ?

Dan

Al Kessler
 

SHIMA1

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Re: Grow stones
« Reply #3 on: February 10, 2015, 11:39 PM »
That's Keppler.  He's all over Bonsai Nut. Google grostone. It's glass, like pumice, but not made by a volcano, (more control) ;) Get the smallest size, soil aerator. I use it as substrate with milled sphagnum, and there needs to be a layer of something to retard evaporation, like moss. But mostly I use good old pumice. I'm sure Al will chime in, he's good at that. ::)
 

Anthony

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Re: Grow stones
« Reply #4 on: February 11, 2015, 04:45 AM »
If anyone wants to read -

http://www.growstone.com/

Interesting cullet with foaming ingredients.
Good Day
Anthony
 

Owen Reich

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Re: Grow stones
« Reply #5 on: February 11, 2015, 09:23 AM »
I've used it once or twice.  There is some sort of pH buffering agent that requires washing or soaking.  Seems very moisture retentive from observation.  Never used it with a refined tree, but with some rooted cuttings. 

http://www.growstone.com/wp-content/uploads/2013/05/Growstone101-Hydro.pdf

Could be great for water needy species. 
 

Anthony

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Re: Grow stones
« Reply #6 on: February 11, 2015, 12:06 PM »
Owen,

Khaimraj suggests that the Na20 / Ca0 / Si02 might need to be Titanized or you might get some free sodium and calcium compounds coming out of the glass matrix.

If cullet is used in pottery, it tends to set like cement in glazes when exposed to moisture.

So far the marbles have shown no real surface degradation, and the tamarinds, which have acidic compounds at the root sections, have shown no problems with sodium compounds seeping out.
Ditto the 3 mm glass spheres.
More info later with the passing of time [ x years ].
Good Day
Anthony
 

0soyoung

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Re: Grow stones
« Reply #7 on: February 11, 2015, 12:52 PM »
That's Keppler. 

Funny that a physicist would have trouble with that - KePPler.

Anyway, at his blog: https://bonsaial.wordpress.com/2015/01/18/grow-stones-and-maples/
 

bwaynef

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Re: Grow stones
« Reply #8 on: February 11, 2015, 02:35 PM »
Funny that a physicist would have trouble with that - KePPler.

I think the guy you're referring to is KePler, as in Johannes Kepler.  Maybe Al's extra 'P' threw him.
 

fredman

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Re: Grow stones
« Reply #9 on: February 11, 2015, 03:34 PM »
Ah Johannes Kepler... Isnt he the guy that calculated the planets motions around our bonsais so we can take it with when we inhabit Mars one day?  :P
 

0soyoung

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Re: Grow stones
« Reply #10 on: February 11, 2015, 04:35 PM »
Funny that a physicist would have trouble with that - KePPler.

I think the guy you're referring to is KePler, as in Johannes Kepler.  Maybe Al's extra 'P' threw him.

Right you are.

 :-[                     hooey! (please prepend my extra P)
 

akeppler

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Re: Grow stones
« Reply #11 on: February 11, 2015, 05:14 PM »
Our name in Germany was spelled Kapler. Pronounced Keppler, made my Great Grandfather change it at Ellis Island.

I still use the growstones, but as has been mentioned, they dry very quickly. Owen needn't worry about water retention as there is none. Of course my summers are around continual 105 daily with temps at midnight still around 103. I am sure water retention would be better in a more mild climate.

FWIW, pumice dries just as fast here, so a switch to that wouldn't matter. I have a better particle anyway which does retain plenty of moisture.
 

Owen Reich

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Re: Grow stones
« Reply #12 on: February 11, 2015, 07:15 PM »
Duly noted Al.  You've actually trailed the stuff. 
 

akeppler

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Re: Grow stones
« Reply #13 on: February 11, 2015, 09:49 PM »
Just as an aside.. The pictures my dad has of his grandfather show him all thorugh his life wearing a mustache just like Hitler did. That style was very popular in the last half of the 19th century and the first half of the 20th. Then some jerk came along and ruined the look forever more. He was struck by lightning twice and survived and drug by plow horses across a 100 acre field. He settled in Revenna Ohio where my Dad grew up. Didn't have indoor plumbing until the fifties.

They just don't make men like that anymore.
 

SHIMA1

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Re: Grow stones
« Reply #14 on: February 11, 2015, 11:08 PM »
I've used it once or twice.  There is some sort of pH buffering agent that requires washing or soaking.  Seems very moisture retentive from observation.  Never used it with a refined tree, but with some rooted cuttings. 

http://www.growstone.com/wp-content/uploads/2013/05/Growstone101-Hydro.pdf

Could be great for water needy species. 
Owen, if your talking about the directions to cut holes in the bottom of the bag and run water in the top I think it's to rinse any glass particulate which would be dangerous to inhale.