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Top Questions About Clethra Alnifolia

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Questions About Clethra Alnifolia

  • Answered by
    Nikki on
    June 15, 2011
    Certified Expert
    A.

    Although typically pest free, this particular plant is occasionally affected by these pests. Eriophyid mites feed deep within the plant tissues sucking out plant juices, which causes deformation of plant growth but seldom kills plants. Rust mites, a similar species, are usually responsible for the browning and leaf curling.

    Eriophyid mites usually do not cause serious injury, even large populations can be tolerated by plants, but the damage may be unsightly. Infected leaves and twigs can be pruned off to eliminate adult mites. All infected branches should be removed and destroyed as well. Heavy infestations can also be controlled with insecticides. Dormant oil, horticultural oils (like neem oil), and insecticidal soaps may also be effective.

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  • Answered by
    shelley on
    April 20, 2015
    Certified Expert
    A.

    Yes, it is okay to plant to April so long as the temperature is mild and the danger of frost has passed.

    For more information on Clethra Alnifolia plants, please visit the following link:
    https://www.gardeningknowhow.com/ornamental/shrubs/summersweet/summersweet-plant.htm

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  • Answered by
    Downtoearthdigs on
    June 22, 2016
    A.

    This link will help refresh you on the care requirements.
    https://www.gardeningknowhow.com/ornamental/shrubs/summersweet/summersweet-plant.htm

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  • Answered by
    Downtoearthdigs on
    May 10, 2017
    A.

    Check the branches, do they bend or snap off?
    Scratch the bark, if branches are still alive; you will see green tissue.

    Since they die back, they may take longer to leaf out then other plants or trees in you yard.
    Give them more time.

    https://www.gardeningknowhow.com/ornamental/shrubs/summersweet/summersweet-plant.htm

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  • Answered by
    DLarum on
    July 12, 2017
    Certified Expert
    A.

    It sounds like the plants are having a hard time establishing in this site. It could be from the neighbor's tree roots, or it could be a general soil issue. Adding peat moss or other organic material could help them retain moisture better. Just avoid any manure, which may be too high in nitrogen. Phosphorus is important to proper root development, so a product like Root N Grow may also help. If the roots are the problem, it may be necessary to berm up the area to give plants enough rich soil to establish in

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  • Answered by
    BushDoctor on
    July 21, 2018
    Certified Expert
    A.

    Yes, you may cut the dead blooms. And yes, it will only flower once per year around this time. This article will help you to care for these slow growing shrubs: https://www.gardeningknowhow.com/ornamental/shrubs/summersweet/summersweet-plant.htm

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