That's interesting -- about the boron. Which fertilizers have that in them, and how does one find out if it's in a particular fertilizer? The fertilizers I use have a "guaranteed analysis" for the usual ingredients, but that that doesn't mean they don't also contain other stuff. My usual fertilizer is Biosol, label linked below, and the other one I commonly use is Magnum Rose Food, a water soluble, by Grow More. But sometimes I also use a micronutrient powder and now that I look, on its label I see it says it contains "10 ppm Boron", which raises the question, how much is too much -- Is that even a noticeable amount? Thanks Kathy Here is a link that might be useful: Biosol label

Never because my soil test says that I have high natural levels of Mg in my soil. Have you done a soil test to see if you need it? I know certain parts of KY have a lot of limestone & if it is dolomite limestone, you will have plenty of Mg if you are in this limestone area. The reason that I'm asking you these questions is because many rose growers & rose info sources have blindly told people to use Epsom Salts on your rose with out testing your soil to see if Mg is needed.

I sprinkle some on the beds in the spring. Later on in the growing season I foiliar feed my tomatoes, peppers, eggplants, etc., few times. It is all natural harmless substance, that you can even use as drink(proper dosage), you can bath in it, soak your feet in it. BER??? As far as I know, it is not a cure for BER. But it can make your plants lush green and healthy. For BER, disolve some calcium tablet in water and pour it at the base of your tomato plants.(Thats what they say). But I have found out from my own experience and have read about aothers, that ROMA, and SAN MARZANO are suseptible to BER. You can say that they are calcium deficiency sensative.

Epsom Salts (Magnesium Sulfate) and Orchids Orchids need a variety of trace minerals, one of which is magnesium. Magnesium Sulfate is essential for the manufacture of chlorophyll, and using Magnesium sulfate will produce a more robust plant. One study previously posted on the orchid forum in 2002/2003, found adding Epsom salts does not make any difference in the size of flowers produced, but in an experiment the use of Epsom salts brought seedlings to maturity and flowering faster than those which were not provided with magnesium sulfate in the form of Epsom salts. A variety of frequency and amounts of Epsom salts has been suggested for orchid growers. Mr. Bert Pressman, in an article entitled Care and Feeding of Orchids suggests using ½ teaspoon per gallon every time the plant is watered. Other advice offered here for phal growers has been 1 tablespoon per gallon, four times a year, or the same rate in the water during September and October (early fall) to assist in the budding of the plants. Some orchid fertilizers contain Magnesium, such as Peters Cal-Mag fertilizer (2% Magnesium 5% calcium with a regular 15-5-15 N P K fertilizer, and the Dyna-gro lines Mag-Pro which are available in the U.S. Check the list of minerals to determine if the fertilizer you are using contains Magnesium. Epsom Salts diluted in water offer the same ingredient for much less cost, but some may prefer the other products for ease of use if nothing else. Epsom salts are inexpensive and can be found at discount stores, drug stores, grocery stores, among other places, in the first aid depts.. Yesit is the same stuff you use for soaks!