The element calcium (Ca) is the fifth most abundant element in the earth’s crust and the third most abundant metal after iron and aluminum. It is a Group 2 member of the Periodic table. Calcium along with magnesium, beryllium, strontium, radium, and barium, are known as alkaline earth metals. These metals react with other chemicals at standard temperature and pressure, usually with an overall release of energy. In plants calcium is an essential secondary macronutrient, needed in moderate amounts and is rarely limiting in crop production.
Allergy season is in full swing in most parts of the country; turning cars a peculiar shade of green, causing Kleenex stocks to rise and giving allergy sufferers a wide range of uncomfortable symptoms. Allergies can cause sneezing, wheezing, coughing, headaches and worse but they shouldn’t keep you from enjoying your garden. Instead, re-evaluate your garden, replacing allergy-causing plants with those that will not contribute to your symptoms and redesign your gardening routine and habits.