Fox Farm Potting Soil 10% Off
Sulfur 10% Off
Elemental Sulfur and soil pH
Maintaining your soil pH is a constant process. Here in Colorado we have alkaline soils (high pH) which can chemically tie up nutrient availability for plants. Many plants prefer a slightly acidic soil (pH lower than 7). Using sulfur (S) is a cheap, organic, long-lasting and elemental way of decreasing your soil pH and keeping your garden healthy in Colorado .
We have 4# and 50# bags in stock.
The cheapest way to lower the soil pH is to add elemental sulfur to the soil. Soil bacteria change the sulfur to sulfuric acid, lowering the soil pH. Spring and summer application and incorporation work best. Soil bacteria convert the sulfur to sulfuric acid lowering the soil pH. It is important to note that this is a biological process (slow) and not a chemical reaction (rapid). The bacteria are active, when the soil is moist and warm. The soil temperature needs to be above 55F. The bacteria are not active in the winter so fall applications of sulfur have little effect on the soil pH next spring. In addition to lowering pH, sulfur (S) is an essential nutrient.
Plants need at least sixteen nutrients for normal growth. Three of these nutrients – nitrogen (N), phosphorus (P), and potassium (K), are known as the major nutrients. Plants need large amounts of these elements, and smaller amounts of other elements. Although it is not one of the three major elements, sulfur (S), is also needed in large amounts by plants. Many plants contain as much sulfur (S) as phosphorus (P), and it ranks in importance with nitrogen (N) and phosphorus (P) in the formation of protein. It is an integral component of certain vitamins and enzymes.