"Jen" wrote in message
"George.com" wrote in message

in NZ we can get it through farm merchants in bulk lots (10/20/30
kg
bags).
Works out cheap though the bag last ages. I guess Aus farm
merchants would
sell it as well.


Why would anyone need such big bags? What else is it used for?

Boron deficient soil. It's an important trace element but you'd need
a lot of land and to be growing lots of cabbages in boron deficient
soil.