Q&A for How to Grow Boysenberries

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  • Question
    What is the difference between a blackberry and a boysenberry?
    Maggie Moran
    Home & Garden Specialist
    Maggie Moran is a Professional Gardener in Pennsylvania.
    Home & Garden Specialist
    Expert Answer
    They are part of the same berry family, and the boysenberry is a blend of blackberry, raspberry, and loganberry. The blackberry is a true berry and not a mix of any.
  • Question
    Are boysenberries good for you?
    Maggie Moran
    Home & Garden Specialist
    Maggie Moran is a Professional Gardener in Pennsylvania.
    Home & Garden Specialist
    Expert Answer
    They are healthy in many ways. They contain fiber, vitamin K, and a modest blend of manganese, iron, calcium, and potassium.
  • Question
    What do boysenberries taste like?
    Maggie Moran
    Home & Garden Specialist
    Maggie Moran is a Professional Gardener in Pennsylvania.
    Home & Garden Specialist
    Expert Answer
    They have a great juicy flavor and taste like a mix of blackberry and raspberry.
  • Question
    Do boysenberry plants have thorns?
    Maggie Moran
    Home & Garden Specialist
    Maggie Moran is a Professional Gardener in Pennsylvania.
    Home & Garden Specialist
    Expert Answer
    Most boysenberry plants do have thorns, but there are some varieties that can be bought thornless.
  • Question
    My boysenberry plants are four years old, in direct sunlight all day, thriving, bramble like, are trained on a trellis, but I have only gotten one single boysenberry. How do I get more fruit?
    Lauren Kurtz
    Professional Gardener
    Lauren Kurtz is a Naturalist and Horticultural Specialist. Lauren has worked for Aurora, Colorado managing the Water-Wise Garden at Aurora Municipal Center for the Water Conservation Department. She earned a BA in Environmental and Sustainability Studies from Western Michigan University in 2014.
    Professional Gardener
    Expert Answer
    Prune your boysenberries annually in the fall or winter. Prune out all of the old growth that has already fruited as these canes will not fruit again. Fertilize every spring with a balanced fertilizer or mix some compost into the soil.
  • Question
    Should I prune the tips of this year's growth to stop the plant from growing?
    Lauren Kurtz
    Professional Gardener
    Lauren Kurtz is a Naturalist and Horticultural Specialist. Lauren has worked for Aurora, Colorado managing the Water-Wise Garden at Aurora Municipal Center for the Water Conservation Department. She earned a BA in Environmental and Sustainability Studies from Western Michigan University in 2014.
    Professional Gardener
    Expert Answer
    It is recommended to cut back some of this year's growth to the ground to thin out the plant.
  • Question
    My boysenberry has lots of canes and leaves not a lot of fruit. I want to cut the brambles back. It is 2 seasons old.
    Community Answer
    The canes that produce fruit this year, you need to cut off in the fall and remove them. For the new canes that start growing in the spring and summer, these are going to produce fruit next year.
  • Question
    If the canes are longer than what I am tying them to, do I cut them off at the same height?
    Community Answer
    No need to cut them. Simply train them to grow back down, and then back up again on the same post.
  • Question
    Should boysenberry plants be partially shaded, or is direct sun best?
    Community Answer
    They thrive in direct sunlight.
  • Question
    When will my boysenberries be ripe?
    Donagan
    Top Answerer
    They will ripen in mid-to-late summer.
  • Question
    In what season do the vines flower?
    Donagan
    Top Answerer
    In the spring.
  • Question
    What time of year is best to plant?
    Community Answer
    It depends upon the climate and soil of your place. Rainy season is better for its growth and development.
  • Question
    Can I grow a new boysenberry plant from the trimmings of an older plant?
    Community Answer
    Start a new plant in the spring by placing the tip of a new cane in the ground. It will root and can be transplanted in the fall or next spring as a new plant.
  • Question
    What do I do if the leaves are yellow on my boysenberries?
    Community Answer
    Check nutrient levels, boysenberries are heavy feeders! You can add 20-20-20 early in the season as they begin to grow out. You can water with fish fertilizer or another fertilizer.
  • Question
    Should I cover my boysenberries with a shade cloth to provide a little shade if they appear to be burned?
    Community Answer
    They may appear to be burned but more likely it is a nutritional deficiency. They require a lot of nutrients to continue to grow vegetation and fruit. Make sure you are watering at least weekly, more in the hot and dry weather.
  • Question
    Is it okay to plant my boysenberries next to the blackberries?
    Community Answer
    Yes, as long as they aren't too close. Make sure to space all plants 3-5 feet away from your boysenberries.
  • Question
    What is the life of a boysenberry vine?
    Community Answer
    The life of a boysenberry vine goes from seeds to seedlings to young plants and finally to mature plants which produce the berries.
  • Question
    Is it okay for ants to be on my boysenberry leaves?
    Community Answer
    Yes, ants won't do anything to your boysenberry plants. They're probably just there to find food.
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