Boysenberry
cross between a European Raspberry (Rubus idaeus), a Common Blackberry (Rubus fruticosus), an American Dewberry (Rubus aboriginum) and a Loganberry (Rubus × loganobaccus)
The boysenberry () is a cross between the European raspberry (Rubus idaeus), European blackberry (Rubus fruticosus), American dewberry (Rubus aboriginum), and loganberry (Rubus × loganobaccus).
Description
Boysenberries grow on low, trailing plants. It is a large aggregate fruit with a deep maroon color, weighing 8 grams (0.28 oz) and containing large seeds. The fruits are characterized by their soft texture, thin skins, and sweet-tart flavor. Mature fruits leak juice very easily and can start to decay within a few days of harvest.
History
The exact origins of the boysenberry are unclear, but the most definite records trace the plant as it is known today back to grower Rudolph Boysen, who obtained the dewberry–loganberry parent from the farm of John Lubben.
In the late 1920s, George M. Darrow of the United States Department of Agriculture began tracking down reports of a large, reddish-purple berry that had been grown on Boysen's farm in Anaheim, California. Darrow enlisted the help of Walter Knott, another farmer, who was known as a berry expert. Knott had never heard of the new berry, but he agreed to help Darrow in his search.
Darrow and Knott learned that Boysen had abandoned his growing experiments several years earlier and sold his farm.
“Boysenberry” enters the record as cross between a European Raspberry (Rubus idaeus), a Common Blackberry (Rubus fruticosus), an American Dewberry (Rubus aboriginum) and a Loganberry (Rubus × loganobaccus). Crown Archives preserves that source wording while asking what Boysenberry, cross and between can confirm, complicate or overturn.
Why this record matters
“Boysenberry” is worth following because a concise public description often conceals a longer documentary argument. Here, Boysenberry, cross and between provides the most credible route into that argument.
Named sources, stable identifiers and responsible institutions provide the strongest route from overview to verifiable evidence. The source revision retrieved here is dated Sep 17, 2026. The linked authority identifier is Q896083. None of the 0 selected statements returned an explicit reference.
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This entry incorporates text from “Boysenberry” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.