Excessively acid soil lacks the calcium that plants need as much as we do. St. Augustine and Bermuda lawns are not only stunted by acid soil, they are constantly invaded by Florida's native acid-loving weeds, such as dollar weed and oxalis. Most fertilizers contain little or no calcium, and weed killers and fungal sprays suppress only symptoms. But you can cure the problem inexpensively and safely. I literally cannot garden well in the Tampa Bay area without it and have depended on it since 1976 in my own gardens and those of my clients.
Plants use magnesium with iron to make their green chlorophyll.
You may hear your lawn and gardens sigh with relief as you spread the dolomite all over by hand or with a spreader, about as heavily as a generous serving of Parmesan cheese on spaghetti. Dolomite also helps the summer rains leach toxic chemicals out of your soil. As your waterings and the rains and the earthworms slowly work this powdered rock mined in Crystal River into your soil, you will see the dramatic improvement in the color and growth you've always dreamed of. One hundred pounds yearly will keep the soil sweet and supplied with calcium and magnesium. Dolomite once was hard to find, but it is showing up in most of the large garden centers as word of mouth spreads the good news of its effectiveness as an organic soil healer.