Double Rose of Sharon that is experiencing some leaf loss after planting.
Haybar had a question about some Double Rose of Sharon they recently bought and planted. Since I am sure there are numerous experts with this type of Althea, I thought I would post the pictures sent and see if anyone wants to add their three cents. (I already added my two cents.)
Here is most of the conversation from the other post:
"Steve, I got my sister a double rose of Sharon for her birthday. She is having trouble with yellow/black leaves any idea what she could put on it? I'm not to up on plants, and their blights."
"I have not experienced it but let me ask a few more questions to see if we can narrow it down.
How long has she had the plant?
Is it in the ground or a pot?
Are spots forming on the leaves before the leaf dies or are the leaves turning yellow and then black?
Are the leaves dying from the bottom up, intermittently or all over?"
"Haybar, I got your pictures and assuming the plants were healthy when you got them, and that they were relatively new in the ground, I am going to first consider the shock the plant is experiencing being transplanted, and the high heat we have had before I would think it is a fungal or bacterial disease.
Not saying it isn't because I seemed to notice some discoloration higher up on the plant so if possible carry a few leaves into the UT Ag Extension office on Midland Road in Shelbyville for first hand analysis.
Since they are new transplants, baby them a little. Make sure the soil stays moist but if it is pure clay and water does not drain well, be careful not to keep them soggy.
Remove any leaves that do yellow or develop spots and destroy, not compost.
The basic plant looks healthy so I do not think it is a root or soil problem. If the Extension determines there is an issue, they will make recommendations for resolving."
"Thanx for your help Steve, I will pass the info on, it probably is shock from planting."
By the way haybar, it is a deciduous plant so later this year it will drop all its leaves. When deciduous plants are stressed it is normal to drop leaves, but the photos may be a clue for someone else. Maybe there is some preemptive actions you can take, just in case.
Any more thoughts?