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Vermiculite vs Perlite
What is the difference between Vermiculite and Perlite?
-- Ed |
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Vermiculite vs Perlite
In article ,
"Ed" wrote: What is the difference between Vermiculite and Perlite? With less effort, you could have "googled" the two words and had your answer from Wikipedia already. Good luck. Billy Republican and Democratic "Leadership" Behind Bars http://www.haaretz.com/hasen/spages/1031285.html http://www.youtube.com/watch?v=9KVTf...ef=patrick.net |
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Vermiculite vs Perlite
On Thu, 8 Jan 2009 21:24:10 -0500, "Ed"
wrote: What is the difference between Vermiculite and Perlite? In use, vermiculte holds moisture. Perlite speeds drainage, gritty, lightweight. Vermiculte is very good in getting woody cuttings to root (never tried rooting with perlite but I guess it might work). Both mediums are inorganic and sterile. For some reason it is harder to find vermiculite for sale, perlite is availailable in many stores. |
#4
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Vermiculite vs Perlite
Phisherman wrote:
"Ed" wrote: What is the difference between Vermiculite and Perlite? In use, vermiculte holds moisture. Perlite speeds drainage, gritty, lightweight. Vermiculte is very good in getting woody cuttings to root (never tried rooting with perlite but I guess it might work). Both mediums are inorganic and sterile. For some reason it is harder to find vermiculite for sale, perlite is availailable in many stores. Vermiculite is a hydrated basaltic mineral which expand when exposed to hight heat. It resembles mica pellets. It can be made from mafic lava such as that in Hawaii. It is primarily SiO2 with magnesium and iron oxides. Perlite is an amorphous volcanic glass with a high water content. It can be made from obsidian (black glass-like lava). It looks like white styrofoam BBs. It is also a byproduct of steel manufacturing but this is too high in boron for horticultural uses and is only used for aggregate, etc., not horticulture. Do not use pearlite, it is a different material. Perlite is typically 75% SiO2, 15% Al2O3, and smaller amounts of sodium, potassium, iron, magnesium and calcium oxides. 14% all perlite is used for horticulture. Perlite tends to last longer and has a more neutral pH The are both sterile materials so they are frequently used in plant propagation where any water molds cause severe losses. They are usually used in combination to provide the optimum balance between drainage and retention of water. -- Pardon my spam deterrent; send email to Visit my Rhododendron and Azalea web pages at: http://rhodyman.net/rahome.html Also visit the Rhododendron and Azalea Bookstore at: http://rhodyman.net/rabooks.html Cheers, Steve Henning in Reading, PA USA Zone 6 |
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