What is Chlorosis?
Chlorosis in plants is a result of nutrient deficiency, insufficient light, or certain viral diseases, and causes the leaves to become yellowish from lack of chlorophyll being created within the plant. The most common form is Iron Chlorosis which is a result of a deficiency of Iron in a plant. Iron is a key element in the creation of chlorophyll. Iron Chlorosis is caused by a plant being unable to extract sufficient Iron from the soil. It is very common in high pH and heavy clay soils. These types of soils bind up the iron into a form that the plant cannot use properly. Iron Chlorosis will effect the young leaves first and then spread to the older foliage as the condition worsens. If the new growth turns yellowish first, this is the likely problem. Some plants are very tolerant of high pH and clay soils, while others are not. The best way to prevent it is to either choose plants that are tolerant, or amend the soil to improve the chances of your plants being able to extract the iron in
