washed river sand

Jane McGary janemcgary@earthlink.net
Tue, 19 Aug 2008 15:55:58 PDT
The only kind of sand you have to avoid in a seed mix is very silty, 
fine-grained sand such as comes from low down on a river. (Of course, you 
would not use beach sand either.) "Builder's sand" or "concrete sand" 
should do. If you feel that it has too many fines, put it in a fine sieve 
and run water through it, or just put it in a large container and run a 
hose hard into it for awhile until the fines flow out with the water.

I grow a number of bulbs from western South America and just plant them in 
my ordinary seed sowing mix, which is about equal parts of coarse river 
sand (easily obtained here), ground pumice, and peat. I almost never make a 
special seed sowing soil for a particular plant, except very fine seeds and 

Jane McGary
Northwestern Oregon, USA

At 04:57 PM 8/18/2008 -0400, you wrote:
>I am propagating my own SA bulb seeds this fall. Could someone suggest
>the grade or particle size that has worked the best for them? I am
>having trouble finding "river sand" and the industrial sand comes in
>different sizes.

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