Rose of sharon split bark - Ask Extension
This is a better pic of a question a had previously posted. About the trunk being split. And roots keep coming up of the ground, I have added more dir...
Knowledgebase
Rose of sharon split bark #701092
Asked July 15, 2020, 12:51 PM EDT
This is a better pic of a question a had previously posted. About the trunk being split. And roots keep coming up of the ground, I have added more dirt a couple of times.
And there are tons of buds, but many had turn yellow and dropped , no blooms yet.
What can I do to help it or what could cause it ?
And there are tons of buds, but many had turn yellow and dropped , no blooms yet.
What can I do to help it or what could cause it ?
Kankakee County Illinois
Expert Response
There is little to do other than allow the wound to seal up on its own. There are numerous possible causes of the initial damage.
The roots appear to adventitious roots. That may indicate the shrub is planted too deeply. I tend to notice rose-of-Sharon can have some surface roots. You may try excavating the added soil around the base of the shrub back to the original depth and pruning off the adventitious roots. Never mound soil or mulch against woody stems or trunks. Mulch the area about 2- to 4-inches deep and leave at least a 2-inch gap between the mulch and trunk.
We have been getting a few reports this year on rose-of-Sharon aborting flowers. It can be a common occurrence. From Purdue https://www.purdue.edu/hla/sites/yardandgarden/rose-of-sharon/
The roots appear to adventitious roots. That may indicate the shrub is planted too deeply. I tend to notice rose-of-Sharon can have some surface roots. You may try excavating the added soil around the base of the shrub back to the original depth and pruning off the adventitious roots. Never mound soil or mulch against woody stems or trunks. Mulch the area about 2- to 4-inches deep and leave at least a 2-inch gap between the mulch and trunk.
We have been getting a few reports this year on rose-of-Sharon aborting flowers. It can be a common occurrence. From Purdue https://www.purdue.edu/hla/sites/yardandgarden/rose-of-sharon/
