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Top Questions About Blackberry Plants

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Questions About Blackberry Plants

  • Answered by
    MichiganDot on
    August 26, 2018
    A.

    Japanese beetles are frustrating and require daily vigilance to spot the start of their season. I wonder if the mosquito netting kept bees from pollinating the flowers. Although blackberries are self-fertile, pollen still needs to be transferred from stamens to stigmas. Wind might be sufficient but your experience this year indicates it might not be enough. Some people gently shake tomato stems to get pollen to move; I've even read of using an electric toothbrush against the cane near the flower stems. Since the plant was decimated by last year's infestation it may have needed a year to recover. If you have never tested the soil, that is another potential problem. If there is a deficiency in phosphorus and potash (potassium), fruiting is affected. Also, too much nitrogen favors leafy growth, not fruit.
    If you test through your state extension service, recommendations to correct deficiencies and annual fertilizer needs are given.

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  • Answered by
    Downtoearthdigs on
    August 26, 2018
    A.

    I recommend only fertilizing once a year for these, as they will sustain without much feed. Now, as far as cutting them back... These two are related, closely, and will have similar growth habits. They fruit on older canes. This means that you will want to leave a good section of the older, thicker wood for it to fruit properly.

    As far as what you have done to the soil... this can be a bit of a challenge, as this can also encourage rot. I would suggest using dolomite lime, and putting some wettable sulfur in the soil to prevent any rot from occurring. One method to controlling weeds is to mix vinegar in water 1:1. Half vinegar and half water. Spray ONLY the plants that you intend to kill and try to avoid spraying the soil if possible. Here is an article that will help further: https://www.gardeningknowhow.com/edible/fruits/blackberries/growing-blackberry-bushes.htm

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  • Answered by
    BushDoctor on
    August 29, 2018
    Certified Expert
    A.

    This definitely follows the symptoms of a rust. Here is an article that will help you: https://www.gardeningknowhow.com/edible/fruits/blackberries/blackberry-orange-rust-treatment.htm

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  • Answered by
    BushDoctor on
    September 29, 2018
    Certified Expert
    A.

    Every plants will have some instances of 3 and 5 leaflets. This is the nature of the species. As the plant matures, you will see many more with 5 leaflets, but you should still see a good mix.

    Of course, this can depend on cultivar as well. Some may not be bred to be as dense, or a broadleaved.

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  • Answered by
    Downtoearthdigs on
    October 5, 2018
    A.

    The care of this plant is similar to all other blackberries, and raspberries. I am including 2 articles. One is on the care of blackberries, and one is on pruning.

    Here is the article about growing blackberries: https://www.gardeningknowhow.com/edible/fruits/blackberries/growing-blackberry-bushes.htm

    Here is the article on pruning: https://www.gardeningknowhow.com/edible/fruits/blackberries/blackberry-pruning.htm

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  • Answered by
    Downtoearthdigs on
    March 3, 2019
    A.

    Yes, they usually prefer a dormancy to fruit properly. They really like to have a period under 40 degrees for some time. You can find the chill hours for your specific variety with a google search.

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  • Answered by
    Downtoearthdigs on
    April 18, 2019
    A.

    Use a good commercial potting soil if you are planting in a container.
    In the ground you will need a loamy well draining soil.

    These articles will help you.
    https://www.gardeningknowhow.com/edible/fruits/blackberries/container-grown-blackberries.htm
    https://www.gardeningknowhow.com/edible/fruits/blackberries/growing-blackberry-bushes.htm

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