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Top Questions About Barberry Shrubs

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Questions About Barberry Shrubs

  • Answered by
    Alisma on
    August 30, 2016
    Certified Expert
    A.

    You can use what is known as "renewal pruning" for your barberries. Basically, in the first year you should select 1/3 of each shrub's branches and cut them back close to the ground, leaving the other 2/3 to support the plant. Then repeat the process for two more years until all the old branches have been cut back. Meanwhile, the shrub should put out new branches.

    See the following article for more:

    https://extension.psu.edu/plants/green-industry/news/2012/hacking-whacking-dealing-with-overgrown-shrubs

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  • Answered by
    Alisma on
    September 6, 2016
    Certified Expert
    A.

    If you recently transplanted the new barberries, they could be affected by transplant shock:

    https://www.gardeningknowhow.com/plant-problems/environmental/learn-how-to-avoid-and-repair-transplant-shock-in-plants.htm

    Japanese barberry can be affected by verticillium wilt, which could cause loss of leaves on specific branches and eventually kill the plant:

    http://www.extension.umn.edu/garden/yard-garden/trees-shrubs/verticillium-wilt/

    I am not sure whether slugs would eat barberry, but if so you would probably see the slime trail they leave behind. Here is some information on controlling slugs:

    https://www.gardeningknowhow.com/plant-problems/pests/insects/kill-garden-slugs.htm

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  • Answered by
    Carmen1 on
    September 6, 2016
    A.

    It's not transplant shock at all, and I know how to deal with slugs, and there is no trail remotely traceable as we are talking about stone and gravel that surrounds the plants. But in reading the link provided, I think it is rust!
    THANKS!

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

    The best time to transplant barberry is during the period when it is dormant, after most of the leaves have fallen off in fall and before the new leaves grow in spring. Anytime during this dormant period, as long as the ground isn't frozen, is a good time to transplant.

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  • Answered by
    Downtoearthdigs on
    April 5, 2017
    A.

    Barberry shrubs are one of the earliest shrubs to leaf out in the spring.

    https://www.gardeningknowhow.com/ornamental/shrubs/barberry/barberry-shrub-care-tips.htm

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  • Answered by
    Downtoearthdigs on
    April 11, 2017
    A.

    It is not generally necessary to fertilize Barberry shrubs.

    A light feeding of a slow release fertilizer in the spring could be added if necessary.

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  • Answered by
    Downtoearthdigs on
    May 23, 2017
    A.

    This link will help you with propagation methods.

    https://sites.psu.edu/sharonsnyder202/barberrypropagation/

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  • Answered by
    Downtoearthdigs on
    June 13, 2017
    A.

    If you prune the entire shrub back close to the ground now, you will remove the wood that contains the flowering spring buds and you will have no flowers next spring. You could decide to cut it back completely next spring after it blooms so that you can enjoy the flowers. If the shrub is healthy, it will respond with strong new growth that will need to be periodically pruned for the health and form of the shrub.
    In rejuvenation pruning, 1/3 of the oldest branches along with diseased or dead branches are removed every year. This results in a gradual improvement of shrub size and form without sacrificing its presence as an anchor plant. This pruning would take place after spring blooming is finished.
    https://www.gardeningknowhow.com/ornamental/shrubs/barberry/barberry-shrub-care-tips.htm

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