I have gardenias planted in containes. The leaves have a yellowish color to them. I was told by a chain store garden supply manger that it may be the level of chlorine in our rural water supply and to water with purchased drinking water. I live in South Lee County and would like to know what can I give these plants to keep the leaves from turning color? Kathy,
The yellowing could be from an iron or nitrogen deficiency or from over or under watering, what is your watering schedule like? When was the last time you fertilized? It really does not sound to me like a chlorine in the water problem. | 
