No matter how careful we are about maintaining a good nutritional program for our roses, nutrient deficiencies are likely to show up at some point. This article will summarize some of the most common symptoms you're likely to see on Florida-grown roses. The leaves are yellow, but the leaf veins remain green.
Iron deficiency shows up mostly on the newest leaves on the plant.
While it is possible to see Fe deficiency symptoms because a soil actually lacks iron, it is far more common to see them when there is some other problem with the soil or the root system. Therefore, whenever Fe deficiency symptoms show up, it may be wise to have the soil p H tested. Fe deficiency symptoms may also appear if the root system of the plant has been damaged, e.g., after several days of flooding conditions, or in a newly transplanted bush, which has had many of its roots cut off. Correction of Fe deficiency is not difficult if you know its cause. In a soil consisting mostly of limestone, it may not be feasible to reduce the p H of the soil, adequately.