pics would be nice so we could see exactly what these 'rings' look like. the only thing i can think of is that some pests get into leaves and bury around, leaving trails which can end up in ring formations. this happened to a little rose bush i have. but yeah, unless we see pics i think it would be hard for anyone to be able to come up with a good explanation for you in this case.
dutch.lover Reviewed by dutch.lover on . Yellowish Rings? On one of my plants, 40 days old. Their are light rings developing on three leaves. The lower leaves. They are really light in color. I think it might be a Ph problem? any help would be greatly appreciated. Rating: 5