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Top Questions About Mandevilla Plants

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Questions About Mandevilla Plants

  • Answered by
    Alisma on
    December 9, 2016
    Certified Expert
    A.

    Both overwatering or underwatering can cause yellowing leaves, as can lower light levels if the plant has been brought indoors for winter. Give the plant as much light as possible, but most plants will lose some leaves when brought indoors from outdoors.

    Mandevillas need less water during the winter. Check the soil each time and water when the soil is dry to about 1 inch down. If the soil is dry and the leaves are starting to wilt, you are waiting too long to water.

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  • Answered by
    Alisma on
    December 16, 2016
    Certified Expert
    A.

    You should bring the plant indoors anyway, in case it is still alive. Its chances for survival depend on how cold the temperatures actually got, and whether the roots were killed.

    Water the plant sparingly, making sure the soil surface gets dry between waterings, and keep it in a warm place with light. If the plant is still alive, you will see new growth emerging eventually. At that point, you can prune away the damaged parts.

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  • Answered by
    Alisma on
    January 25, 2017
    Certified Expert
    A.

    This could be a mealybug infestation, or one of the other white insects listed here:
    https://www.gardeningknowhow.com/ornamental/vines/mandevilla/mandevilla-pest-problems.htm

    If it's mealybugs,you'll be able to see the bugs if you look closely. Please see these articles for information and treatment options:
    https://www.gardeningknowhow.com/plant-problems/pests/insects/mealybugs-control.htm
    https://www.ipm.iastate.edu/ipm/hortnews/2004/2-27-2004/mealybugs.html

    As for the lost leaves, just make sure not to overwater the plants, since they'll use less water.

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  • Answered by
    Alisma on
    February 13, 2017
    Certified Expert
    A.

    The plant in the pictures is actually a Clematis vine. These have different pruning requirements than Mandevilla, so see these articles for advice:

    https://www.gardeningknowhow.com/ornamental/vines/clematis/pruning-clematis-vines.htm
    https://www.rhs.org.uk/advice/profile?PID=109

    First, determine which pruning group your plant belongs to, according to what time of year it flowers. Then, follow the pruning procedures in the articles for that pruning group.

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  • Answered by
    Downtoearthdigs on
    April 11, 2017
    A.

    Bright and indirect sunlight is the proper location for a Mandelvilla, they will get burned in direct sunlight.
    This article will help you with winter care also.

    https://www.gardeningknowhow.com/ornamental/vines/mandevilla/mandevilla-plant.ht

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  • Answered by
    Downtoearthdigs on
    May 5, 2017
    A.

    No, they are cold hardy to zone 10. You can bring your plant indoors to winter over!

    Here is an article with more information.

    https://www.gardeningknowhow.com/ornamental/vines/mandevilla/mandevilla-plant.htm

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  • Answered by
    Downtoearthdigs on
    May 15, 2017
    A.

    No, the sap would not transfer to the soil.

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