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wetting agent

Hello to all,
Does anyone know what is used as a wetting agent in soilless mixes?  I had
some half peat, half vermiculite mix that I bought at Walmart that worked
very well for starting seeds.  The package said the only other ingredient
was a wetting agent.

When I went back for more of the mix, they were out of it, so I tried to
mix my own.  I found that it wouldn't get wet, even after soaking for quite
a long time.  I finally added a drop of liquid hand soap to each cell in
the flat, and that seemed to work. The seeds are germinating OK, but I am
not sure if soap is the best choice for the wetting agent.  Also, it would
be nice if I could find a dry ingredient so I could add it when I prepare
the soilless mix rather when I plant.

I'd really appreciate any ideas.

This list is wonderful, and I am learning a lot from it.

Thanks in advance for any information,
Rose

hatten@usa.net
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