Me Jai's Quilting AnJai. The Trouble with Roses Image Problem Description Solution Yellow Leaves Leaves turn yellow and may fall off. Could be caused by poor drainage.
Bad weather can slow chlorophyll production, so wait it out.
Add sand to improve drainage. Chlorosis Usually not a serious problem, caused by a lack of iron, nitrogen, manganese or magnesium, or a salt build up. Add chelated iron to the soil, or in severe cases, spray iron sulfate on the foliage. Apply a solution of epsom salts and water to the soil during the season. Aphids Aphids are very small insects, usually black or green, mostly on the underside of leaves or on new growth.