Unidentifiable damage...how to fix?
I have two 1-year old Plumeria's that I rooted from stem. I brought them in for the winter, and placed them by a sunny window. They did well. This year, they dropped all old leaves and grew new ones early Spring.
Last week, the weather got really nice (88F) and so I got greedy for a head start and took them outdoors. Suddenly on Day # 4 temperatures dropped to the 50s or 60s with a lot of rainfall and wind. One of the pots toppled over. The plant that didn't topple over is doing good. The toppled plumeria is not looking good since. Here are it's problems:
1) The leaves softened, browned and wilted away. But seems like new growth is coming up again.
2) Stem shows some wrinkling and skin peeling about 1/2" from the top inflos on two of the three stems. The wrinkling extends about 1" down on one stem, and about 1/2" on the second. The first stem was soft and mushy in the wrinkly part last week, but is strong and hard this week. (though the 1" wrinkly part is now narrower than the rest of the stem). The second stem was hard last week but now seems mushy in the 1/2" wrinkly area.
Also, the top 1/2" of both stems is green and has new growth coming out. It is not soft and mushy either. The mushiness is in the middle part, which is DRIVING ME CRAZY with speculation. The lower part of the stem looks good too.
3) One more thing...the tips on the plant are black in color, though they are growing at a good rate. While this sounds like a fungus or rot, let me tell you that I saw this last year too...but the tips grow out fine. I guess this variety "Lei rainbow" grows darker tips??? (Is that possible?)
To me, it looks like a combination of cold damage, physical damage, and/or animal damage. What should I do to restore the plant? Should I just let it harden, or get aggressive and chop off the stems up until just after the mushy stuff? I would hate to loose the plant.
Thanks so much in advance for your comments.
Here is another fellow member's post from this forum, whose plant looks exactly like mine.
I will try to upload my plumie pics in the evening.
Thanks so much.