re the epsom salt, i used this guy's formula - rightly or wrongly, i'll let you know how it goes . . .
"Dave2, the formula for plants in the ground is to calculate the square footage under the drip line. If your drip line is 3 feet (tree circumference) then us A=Pi x R squared. A=3.14 x 3 x 3 = 28.26 sq feet. Then feed a tablespoon per square foot and water it in well."
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http://forums.gardenweb.com/di...
