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Top Questions About Blackberry Plants

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Questions About Blackberry Plants

  • Answered by
    Heather on
    July 7, 2012
    Certified Expert
    A.

    It sounds like your plants are getting witches broom. The disease causes those stems and also saps energy away from producing stems, which means inferior, poor tasting fruit. This article will have more information and how to control it:
    http://www.ca.uky.edu/agcollege/plantpathology/ext_files/PPFShtml/PPFS-FR-S-3.pdf

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  • Answered by
    Nikki on
    July 1, 2012
    Certified Expert
  • Answered by
    Heather on
    July 15, 2012
    Certified Expert
    A.

    There are several fungus that can cause this. I would treat the plants with a fungicide now to help protect the canes that are growing in now. The other canes should recover their leaves this year, but they will not fruit again.

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  • Answered by
    Nikki on
    July 11, 2012
    Certified Expert
    A.

    First-year canes, also known as primocanes, appear as stems that arch or trail along the ground. They usually bear large compound leaves with five or seven leaflets; they do not produce any flowers or fruit. Second-year canes grow to become what is known as a floricane. The stem will no longer grow taller, but will begin to produce lateral buds and flowers. Also, these normally have smaller leaves with only three or five leaflets. For information on pruning, this article should help: https://www.gardeningknowhow.com/edible/fruits/blackberries/blackberry-pruning.htm

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  • Answered by
    Nikki on
    July 13, 2012
    Certified Expert
    A.

    If it is what I think it is, then it is simply seeds that were not properly pollinated. Ths summer has been hard on pollination of plants, due to the high heat and humidity in most of the country. This makes the pollen stick together and pollination is not as successful as it should be. If it is pollination, these white cells are also shriveled and stunted. They are safe to eat though.

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  • Answered by
    Heather on
    July 25, 2012
    Certified Expert
    A.

    Thornless blackberries can have either 3 or 5 leaves in a group so it could be the same plant and likely is. There is an outside chance that you are seeing the plant revert, but until you see some other difference, such as in the fruit or the canes, I would not worry about it.

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  • Answered by
    Nikki on
    July 23, 2012
    Certified Expert
    A.

    For hedge plantings, I would probably go with erect varieties rather than the trailing types (which would benefit from a trellis), though the choice is yours. They should also be planted about 2-4 feet apart for an ideal hedge. These articles should help as well: https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/how-to-improve-clay-soil.htm
    https://www.gardeningknowhow.com/edible/fruits/blackberries/growing-blackberry-bushes.htm

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