len gardener wrote in message . ..
g'day john,

you'll probably find the makers of the crystals aren't paying burkey
enough if anything at all.

chuckle

len

I've used the crystals in pots, seem to work very effectively, and the
crystals swell to about 20 times their size. A teaspoon is enough for
5 litres of dirt. I have found they work best if the crystals are
under the surface out of direct sunlight, as they dry up quicker when
in the sun.
Hope this is of help.

Ben
http://www.directedfocus.com.au/gardening