I have 3 red potted mandevillas. One of them is doing beautifully. The other 2 have many yellowing leaves and look a bit sparce. They were all planted at the same time using the same materials. Can anyone help??
There are several reasons why plants' leaves yellow and drop. Often it is a result of overwatering, sometimes plants need an adjustment period to establish themselves when repotted. You state that planting conditions were the same for all the plants--Is there any difference in the lighting or location that might cause a difference in growth? I suggest checking closely for pests as well. Another thing I am curious about, when you potted the plants did you notice a difference in the root health of the three plants? (Just wondering if the one that is doing well may have had a healthier root system.) Best of luck with the flowers,