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austin_plummer

Desert rose flowers dying

10 years ago

Hello, I have a large desert rose that my uncle gave to me as a grow out from his massive plant. I was given the plant 2 years ago and it has been doing very well until now. When I got the plant I re-planted it in a much larger plastic pot with miracle grow gardening soil. It receives sporadic watering but last year it had a really great blooming season. I live in gainesville, fl and during the winter it gets freezing so I pull the rose inside when I know it will be too cold, however this year it went from low 70s to freezing overnight and the rose was outside. All of its leaves turned brown and fell off easily and I had to cut back some of the branches because they were shriveling and turning brown. However that was about 4 months ago, since then the rose grew back its green leaves very fully and appeared to be in good health. It started to have little pink flower buds just as it always does but this year something is different. Some of the buds turn brown and never become a flower and a few of them grow into full flowers (full color and all) but appear withered. They get to the appropriate size and color but they wilt over. I have checked the soil for worms/bugs and see none, the soil is moist but not saturated, the stem and superficial roots are firm and dont feel rotted. The plant is full of green leaves and pink buds, but no full healthy flowers. Can anyone help me identify the problem so I can address it? I am concerned that it may not be getting enough light, despite being in the same place it has been for 2 years. There are very tall pine trees and it is possible its getting more shade then it has previously but I cannot be certain.

Attached is a picture of the plant today. I just want to catch any problems it may be having early and correct them asap.

Comments (8)

  • 10 years ago

    Austin,

    From what you explain of this tree. As long as the tree is getting 8hrs of sunlight it should do fine and warm temperatures.

    Do you fertilize this tree? If so, make sure that it is getting fertilized with each watering, but not more than once a week w half strength. Any watering more often than 2x a week w plain water.

    Fertilizer needs to have Boron in the Micronutrients (found on label ingred. list)

    Extremely nice looking tree. You are doing a great job with it.

    Rick

  • 10 years ago

    Thank you, I will fertilize it more often as it certainly has not been getting that much but the fertilizer I have does list Boron as an ingredient. After re examining the tree I found these black and orange bugs on it. From my reading it seems that these bugs mostly feed on the seed pods? I found 4 of them but could be more. I know these are not mealy bugs but when I looked up Boron deficiency I read about mealy bugs causing similar looking flower problems and am concerned. Will you look at these closer pictures of the flower buds/ and blooms for me. One of the larger flowers has a few black spots in it. I included the black and orange bug as well.

  • 10 years ago

    Nutrients may be the problem. If you can finds dyna-gro grow and tekt in your area I would use it twice a month. Th nutrients in the soil leach out over time so you haev to replace them. Not all fertilizershttp://www.adeniumrose.com are right for adeniums.

  • 10 years ago

    Mealy bugs would be visible. Are they one of the many Spider Mites which will cause defoliation. Leaves would only show signs of flecking if large numbers of mites.

    The Dyna Grow Plant Pro 9-3-6 & Dyna Gro Plant Protekt 0-0-3 are wonderful. This is what I use on all of mine.

    Rick

  • 10 years ago
    last modified: 10 years ago

    You have Oncopeltus fasciatus. They're very pretty bugs that feed on milkweed seeds. The adults themselves will not do much damage because they tend to scatter but when they lay eggs, the nymphs can be overwhelming. Fortunately, they only eat milkweed. I once spent an entire summer rearing these things. After that though, I never planted milkweeds again lol Too bad, I liked the plant.

    Oh, btw, when in bloom, adeniums need much more water than what you would normally give them. Also, as a benchmark, I fertilize my adult adeniums every week at a quarter of the recommended dose. When blooming, I increase this to half the recommended dose. \

    Pagan

  • 10 years ago

    Thanks everyone! I bought dyna gro grow and tekt from amazon so it will be here tomorrow. Hopefully some buds will start surviving soon!

  • 4 years ago

    I have the same problem with my desser rose, the flowers doesnt bloom it turn brown and died.


  • 4 years ago
    last modified: 4 years ago

    You describe my plant to a T. I'm near Tampa same scenario with temp drop I i have 2 planted outdoors ,i covered them in moving blankets to protect them (not tight around ) next morning I uncovered and all flowers were dead and leaves eventually all fell off and stems shriveled up , I trimmed them both used some plant feed and coffee grounds and I have hundreds of buds but only a few have opened ,the rest brown and fall off also I notice the leaves are now curled , where as the second plant blooms all her buds just not as full.