I heard about using this sea-90 on the garden about 2 years ago. I thought the man was a little touched because he told me I could buy a bag of this salt from Lowes for 8.00. Turns out he was right and now I can't find it at Lowes. Excellent and economical fertilizer, fungacide and more.. Check the link: http://www.seaagri.com/order.html $2.00 to fertilize an acre- not bad. Also walnut hulls are good for the garden too. Let them compost on your garden over the winter and then till them in.