Iron overload…If your well water tests high in iron you may want to harvest rainwater for your plants. Plants get their nutrients from the minerals in the soil and water they are provided. If your main water source is well water you could very well be overloading your plants iron intake to toxic levels as well as other toxins that have been leached through the soil. Even though iron is a needed nutrient…too much of a good thing can cause a toxic environment for your plants.
Your plants soil and the food you give it can contain iron. So the best way to balance the iron in your plants diet is by limiting it in your water source. Rainwater has been proven by many plant care specialist as the most effective way to grow a healthier garden, as well as a way to grow a greener organic garden. Rainwater harvesting provides a natural balance in minerals and is chemical free.