Return to the Northwestern Gardening Forum
| Post a Follow-Up
collapsing clerodendrums
| | |
Posted by albertine z8 PDX (My Page) on Fri, Jun 26, 09 at 14:43
This is the second tree to have done this here - grow for a couple years as the picture of health, then suddenly completely collapsing as from a lack of water, which hasn't happened. This was noticeable on a single branch first this time, then evenly affecting the whole tree. Any ideas?, This particular site, the same sucessively for both trees, has a healthy underplanting of mahonia, daphne, kerria - nobody shows any signs of stress. No burn - the clerodendrums just go limp.
Any ideas? |
Follow-Up Postings:
RE: collapsing clerodendrums
| | |
- Posted by bboy z8 WA USA (My Page) on
Fri, Jun 26, 09 at 15:33
RE: collapsing clerodendrums
| | |
| Could be a root rotting fungus one one kind or another. Some species of root rotters are very specific as to what they kill and what they don't. Usually when I hear that one branch at a time dies I think of verticilliums. I know that Japanese maples are very susceptible to verticilliums but I don't know about any of these plants you have. Daphnes are usually very susceptible to root rots though. Burrowing rodents are another possibility, if they bore tunnels through the clerodendron's roots but leave everything else alone ... |
RE: collapsing clerodendrums
| | |
| Thanks for the suggestions - I am going for the verticillium theory - whatever it is, I think that location isn't going to have a Clerodendron any more. How ironic - here I thought I would have such a battle with suckers, and instead I can't keep one alive. |
RE: collapsing clerodendrums
| | |
- Posted by bboy z8 WA USA (My Page) on
Tue, Jun 30, 09 at 14:06
| Your state Cooperative Extension office may be able to help with diagnosis. If the soil in that spot is infested with verticillium you would want to know, as there is a wide host range. |
RE: collapsing clerodendrums
| | |
| At this point there are other things growing in that area that do not appear to be suffering, that can grow on to fill the space, but if I ever plant something else there I will check a list. |
|
|
|
|
