Dear Karla, Mine is not a scientific solution, and you are, but I've tried all of the commercial products that I could find here in SE PA, and the best thing I've found is sand that collects in the "sand bars" in the little meandering stream near me. It is a mixture of particle sizes, and the larger ones seem to be on top of the piles. If I want it to be particularly coarse (is that a pun?), I sift it through window screen and save the stuff that doesn't pass through. I assume that you could do the same thing with river sand (maybe not sand from the East River!) Dell -----Original Message----- From: pbs-bounces@lists.ibiblio.org [mailto:pbs-bounces@lists.ibiblio.org] On Behalf Of Chandler, Karla Sent: Monday, August 18, 2008 4:58 PM To: pbs@lists.ibiblio.org Subject: [pbs] washed river sand 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. Thanks, Karla ******************************************** Karla Chandler Curator of Helen Mattin Warm Temperate Pavilion Brooklyn Botanic Garden 1000 Washington Avenue Brooklyn, NY 11225 phone: 718-623-7200 x 6400 fax: 718-622-7847 http://www.bbg.org/ ******************************************** _______________________________________________ pbs mailing list pbs@lists.ibiblio.org http://www.pacificbulbsociety.org/list.php http://pacificbulbsociety.org/pbswiki/