OK, so I've searched and read regarding preferences about whatever stony topdressing to use and I'm confused. Why would oyster shell have salt in it? I live where it ought to be easy to get crushed granite, but have spent a fair amount of time trying to locate 500 or so lbs. and have had zero luck. The only product my reasonably local feed store has is crushed oyster shell. It's size is about 1/8" particulates.
The reason I need to do something immediately is that one of my employees mis-heard my instructions to mulch between the raised beds and mulched the tops of the beds themselves. Above and beyond the fact that this took her 2 days before I realized what she was doing (she's not a new hire and should have known better), we've had so much rain that I'm more worried about the semps' bases rotting than I am about altering the Ph. Ph can always be amended later. Salt, though, is another matter.
Elucidation, please.
