>From whom do you buy this graded pumice? ----- Original Message ----- From: "sekkei" <gardenersview@earthlink.net> To: <john@johnlonsdale.net>; "Pacific Bulb Society" <pbs@lists.ibiblio.org> Sent: Tuesday, July 04, 2006 11:43 AM Subject: Re: [pbs] Perlite substitute? > How about pumice? I have used it for many mixes here in California. The > brand I use is from UNI-GROW? It comes in two sometimes three grades. > Some > batches need sifting, again respiratory precautions necessary. It is a > little heavier but works well for me. > > Terence Hernstrom > Kimberly Crest House & Gardens > Redlands CA > > -----Original Message----- > From: pbs-bounces@lists.ibiblio.org > [mailto:pbs-bounces@lists.ibiblio.org]On Behalf Of John T Lonsdale > Sent: Tuesday, July 04, 2006 9:29 AM > To: 'Pacific Bulb Society' > Subject: [pbs] Perlite substitute? > > > For years I've used perlite in my bulbs compost, to very good effect. I > use > Supercoarse grade and sieve it to get rid of the fines. Over the past > couple of years I've noticed a trend towards more fines and less > Supercoarse > particles - to the point where, today, I spent 45 minutes sieving 8 cubic > feet of perlite and ended up with less than 50% by volume of sieved > material > I can use. This seems to be a waste of time and energy and a > misrepresentation by the manufacturer of the perlite (Schundler). > > > > Is there anything out there that anyone has practical experience with that > I > can substitute directly for the perlite? I use about 50% perlite in my > mix > and don't want to have to learn a whole new watering regime unless I have > to. > > > > Thanks and happy 4th. > > > > J. > > > > John T Lonsdale PhD > 407 Edgewood Drive, > Exton, Pennsylvania 19341, USA > > Home: 610 594 9232 > Cell: 484 678 9856 > Fax: 801 327 1266 > > Visit "Edgewood" - The Lonsdale Garden at > <http://www.edgewoodgardens.net/> > http://www.edgewoodgardens.net/ > > USDA Zone 6b > > > > _______________________________________________ > pbs mailing list > pbs@lists.ibiblio.org > http://www.pacificbulbsociety.org/list.php > > _______________________________________________ > pbs mailing list > pbs@lists.ibiblio.org > http://www.pacificbulbsociety.org/list.php