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Black raspberries are a small berry that weighs between 1 and 2 grams. Commonly known as “blackcaps”, the commercial species of black raspberries originated on the east coast of North America, but now is grown predominantly in Oregon. Oregon accounts for over 90% of black raspberry production in the United States.

Black raspberry plants yield significantly less fruit than their red counterparts and also commonly suffer from a Raspberry Mosaic Disease Complex that gives them a shorter life-span than other cane berry plants. Because of this, they can be costly to produce on a large scale.

Black raspberries are one of the more well-researched berries in the world. Most of the research on them has been done on various forms of cancer, with much of the research done by Ohio State University and other universities in the midwestern United States.


Black raspberry is a common name for three species of the genus Rubus:

  • Rubus leucodermis, native to eastern North America
  • Rubus occidentalis, native to western North America, the species that is commercially harvested, particularly in the Pacific Northwest, from developed cultivars.
  • Rubus coreanus, also known as Korean black raspberry, native to Korea, Japan, and China



Because black raspberries only can be harvested for around 3 weeks during the year, usually starting at the beginning of July, their fresh market presence is limited. Mostly, black raspberries are made into jams, Individually Quick Frozen, or otherwise processed. Black raspberries contain less sugar and more fiber than most other berries. It can also be found as an ingredient in ice creams and soft drinks due to the unique name and flavor of the berry.

Cancer Research

Freeze drying is another common method to preserve black raspberries, and is the form of black raspberries most commonly seen in research. Ohio State University has published multiple research papers using black raspberries on health issues such as colon cancer, esophageal cancer, and even skin cancer. Other universities working with black raspberries include the University of Illinois, the University of Wisconsin, and Louisiana State University. Dr. Gary Stoner, currently at the Medical College of Wisconsin, is heavily involved in much of the research done with black raspberries.

Written on June 13th, 2012 , Fruits Tags:

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    Aion Kinah commented

    Good Morning, I just stopped by to visit your site and thought I’d say thank you.

    05 July 2012 at 04:09
    Joe Davis commented

    Despite of the fact that raspberry can be harvested during three weeks of the year still people manage to preserved it and use it during special occasions.Thanks to innovation I am able to stock raspberry and made a jam and an icing for my cake.

    04 August 2012 at 12:29

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