Ditmar/Gayle on sat 20 nov 99
Cobalt sulfate is an awfully expensive way of amending your soil, and in the
process increasing it's load of heavy metals.
The hydrangeas will change color in response to the soil pH. Making your =
more acid or basic will give you a whole spectrum of their colors. You can =
have an alternating blue ,
pink, white hedge if you want to spend the time working the soil.
I'd use the sulfate as starting material for making my own carbonate or
oxide......which you can use, or trade for a good single malt.
>From Alohaland, Ditmar.