You don't say where you live, the conditions you have your plant in now as to light, watering, temp etc. Its impossible to help you without knowing more about it

Hi Dennis, I'm afraid it sounds like it is gettting way to much water for the type of soil it is in right now especially this time of the year. Plumeria like to stay on the dry side in a fast draining mix. I see there is a saucer under your container and I hope that is just to protect the floor and not to let the tree sit in water? Plumeria don't like to sit in water and they don't like wet feet( roots) this will cause root rot. It does sound like it may be suffering from a root issue and I would think that there is some root rot happening . I'm sure you have taken good care of your tree by watering it on the schedule, but I'm afraid it is to much water.. So with that in mind, I would get it out of that soil to protect what good roots you have on the rootball. You have two choices.. This is my opinion and I hope others will chime in as well.... Since you have the gritty mix all ready available you could take the tree and do an emergency re pot to help save the tree from more damage. I'm afraid it you leave this tree in its soil as is, it will continue to decline . I would take the tree and gently get rid of the soil it is in now. Look at the roots and cut away any brown dead roots that you might see. You can use the gritty mix if you like right now since you are going to have to replace the soil or you could use a mix of cactus mix mixed with perlite and fir bark ( you can buy this at Petsmart called Reptibark by zoo med) make a light mix like the 5-1-1 . You could use either mix. Both would be fine.. I would find a black nursery container and since you will be trying to encourage new root growth, I would use a one gallon container and after you repot, stake the stem so it won't move in the new container and mix. You will have a smaller root system and the roots will be fragile. Keep it in a sunny location in your home and you could even place the container on a heat ( seedling heat mat) to give it heat to try and encourage new root growth . So I hope you understand what I am saying.. I think it is to wet in that container and it needs a faster draining mix. I usually wouldn't encourage someone to repot now, but I feel like it may have root issues with the root system now and I think it is suffering. Your wife is loving this tree too, but she needs to give it less water especially this time of the year. I haven't given my trees any water for about a month now and when I do, it will be limited amounts since they will go dormant. The ones that will stay active are still dry, but I give them a little water when they are dry and that's usually two weeks or so. You can use a wooden skewer to test the moisture level In Your mix.. They like to stay on the dry side. If the wooden skewer is wet or moist, don't water.. During the summer you will be able to water more with a fast draining mix. ... I would also keep that saucer off of the container to allow the water to drain freely . Just be careful when you remove the old soil. Try and keep the rootball from breaking and cut away all dead roots. Have all of your soil / mix ready. Container ready.. Then work on the repot. Good luck and keep us posted as to how it is doing. If you could take a pic of the roots, that would be helpful to see.. But if it is to much during the process and it might cause issues, then don't try to take a pic. . I want you to get that tree back to its full potential and once the roots are happy the stem will harden up again and will be able to support the leaves. It will love being out of that wet soil. Take good care, Good luck with your tree!! Laura

This isn't going to help you much but I thought I'd tell you my experience. I have the same thing happening to my brandywine tomato plant - the flower falls off just about a 1/4 inch in from the flower. I've been asking for help. Some people thought it was the high heat and humidity and then somebody suggested using an electric toothbrush on the head of the flower just where it joins the stem, the premise being that the pollen needed to be shaken a bit. I really thought that would work - and the flowers did stay on a week or so longer, but then they started falling off again. I'm still trying to find out what I can do. I'll let you know when I do.

Extra Photo, showing the vase the bamboo plant sits in, I thought the roots was suffocating, but it's hard to tell. They been in that same position for an year out of the two. I was thinking of changing case but for traveling reasons, I left it alone. This post was edited by NateDog1996 on Sat, Dec 27, 14 at 1:05