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Questions About Dipladenia Plants

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  • Answered by
    Alisma on
    September 11, 2016
    Certified Expert
    A.

    This article has plenty of information on winter care for Dipladenia (a type of Mandevilla):

    http://web.extension.illinois.edu/cfiv/homeowners/051012.html

    According to the article, you can either cut the plant back and then store in a low-light basement which is at about 55-60 degrees, or you can keep the plant as a houseplant through the winter.

    In either case, you can fertilize and put the plant outside as soon as the danger of frost is past and the temperature is above 60 degrees most days. It looks like this would happen around mid-late May in coastal Maine.

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  • Answered by
    Alisma on
    September 25, 2016
    Certified Expert
    A.

    I suspect your plant is trying to spread so it can expand beyond its pot. Dipladenias will usually grow in a vining form unless confined to a pot, but even so, they will put out side stems that I believe are basically runners. You can cut them off at the base to prevent further development.

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  • Answered by
    Alisma on
    October 18, 2016
    Certified Expert
    A.

    It is normal and common for plants to lose some leaves when they are brough indoors. The cause is usually the lower light levels indoors, which light-loving plants like Dipladenia have trouble with. If you can provide more light (natural or artificial) it will help. See this article for other options:

    http://web.extension.illinois.edu/cfiv/homeowners/051012.html

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  • Answered by
    Downtoearthdigs on
    April 17, 2017
    A.

    Both plants will vine and have similar growth patterns.

    Dipladenia and Mandevilla are sometimes miss tagged.

    Here is an article to help you make the identification.

    https://www.gardeningknowhow.com/ornamental/vines/mandevilla/growing-a-dipladenia.htma

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  • Answered by
    Downtoearthdigs on
    May 1, 2017
    A.

    Yellowing leaves could be watering issues; too much or too little, or temperature issues.
    Water the plant when the top inch or so dries.
    Make sure the soil is well draining.

    https://www.gardeningknowhow.com/ornamental/vines/mandevilla/growing-a-dipladenia.htm

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  • Answered by
    Downtoearthdigs on
    May 14, 2017
    A.

    If the roots are filling the entire bottom of the pot or even poking out from the pots drainage holes, it is time to repot.
    Look for a pot slightly wider but not taller then the existing pot. Proper drainage is important.

    Repotting is a good time to add a trellis if you don't have one.

    Use a good quality potting mix.

    https://www.gardeningknowhow.com/ornamental/vines/mandevilla/growing-a-dipladenia.htm

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