Marion berries are a type of trailing blackberry developed in Oregon. The ' Marion' cultivar (Rubus L. subgenus Rubus) or Marion blackberry, marketed as marionberry (help·info) , is an indigenous blackberry developed by the USDA ARS breeding program in cooperation with Oregon State University. It is a cross between the ' Chehalem ' and ' Olallie ' blackberries.
Description and flavor [edit]. The marionberry is a vigorously growing trailing vine, usually producing just a few canes up to 20 feet long. The vines have many large spines, and the fruiting laterals are long and strong, producing many berries. The marionberry's growing conditions are perfectly adapted to the mild, maritime Oregon climate, with its mild rains and warm summers. The berries ripen throughout late spring and early summer. The harvesting season is typically between July 10 and August 10, with a single acre producing up to six tons in a harvest. Marionberries Are Here! shout the signs. Offerings of marionberry shakes, pies, tarts, ice creams, sorbets, salads, and more litter menus across the state of Oregon come July and August. Many tasters find a similarity between marionberries and the rich earthy juiciness of Cabernet grapes. It is sweeter and juicier than the Evergreen blackberries found in wild brambles up and down the West Coast. It is a medium-sized blackberry that ranges in color from very dark red to true black. The Marionberry produces up to 5-6 tons per acre. Marionberries are quality berries, with a better flavor than the Boysen or Evergreen. Marionberries are well-suited for use in local fresh markets and for commercial or home canning, freezing, pies, ice cream flavoring, jams, and jellies. The most outstanding of these selections is the Marion Blackberry or Marionberry. Introduced by George F. Waldo in 1956 and adapted to Western Oregon, the Marionberry is named after Marion County, where it was tested extensively. The berry is medium to large, round and somewhat longer than wide. Marion blackberries, sometimes referred to as the “Cabernet of Blackberries,” are the premier blackberry cultivated and used in everything from yogurt, jam, baked goods and juices. They have a complex, rich flavor, deep reddish purple color and superior texture and size over other blackberry varietals. Marionberries are called ‘caneberries,’ meaning a type of blackberry with a limited number of long (up to 20 feet), but prolific in production canes. This vigorous grower can produce up to 6 tons of fruit per acre. Photo © Molly Watson. Marionberries Are Here! shout the signs. Offerings of marionberry shakes, pies, tarts, ice creams, sorbets, salads, and more litter menus across the state of Oregon come July and August. Tables at farmers markets get covered with baskets of the shiny blue-black berries. Many tasters find a similarity between marionberries and the rich earthy juiciness of Cabernet grapes. It is sweeter and juicier than the Evergreen blackberries found in wild brambles up and down the West Coast. It is a medium-sized blackberry that ranges in color from very dark red to true black. The ' Marion' cultivar (Rubus L. subgenus Rubus) or Marion blackberry, marketed as marionberry (help·info) , is an indigenous blackberry developed by the USDA ARS breeding program in cooperation with Oregon State University. It is a cross between the ' Chehalem ' and ' Olallie ' blackberries. The marionberry's growing conditions are perfectly adapted to the mild, maritime Oregon climate, with its mild rains and warm summers. The berries ripen throughout late spring and early summer. The harvesting season is typically between July 10 and August 10, with a single acre producing up to six tons in a harvest. Additional Marionberry Information. Marionberries are called ‘caneberries,’ meaning a type of blackberry with a limited number of long (up to 20 feet), but prolific in production canes. This vigorous grower can produce up to 6 tons of fruit per acre. In Season: July 2nd through July 24th. Our Marionberries are some of the sweetest and juiciest berries anywhere. The fertile Willamette Valley is the envy of the earth for growing our prized Marionberries. Are considered the “Cabernet of Blackberries” for there rich, earthy flavor. Marionberries (Rubus ursinus Marionberry) are a type of trailing blackberry developed in Oregon. The plants set the standard for the commercial blackberry industry in Oregon and Washington. Given proper care, these thorny, vigorous plants produce large, sweet berries in mid-to-late summer.  Many different berries fall into the category of  blackberries  - Marionberries (named after Marion county in Oregon) are perhaps the best known. What they all share is a deep purple, almost black color and an equally deep flavor. They have a woodsy note that is particularly delicious in tarts and jams. 
https://en.wikipedia.org/wiki/Marionberry http://localfoods.about.com/od/blackberries/a/About-Marionberries.htm http://www.oregon-berries.com/pick-a-berry/marionberry/ http://www.gardeningknowhow.com/edible/fruits/blackberries/what-are-marionberries.htm http://localfoods.about.com/od/blackberries/a/About-Marionberries.htm https://en.wikipedia.org/wiki/Marionberry http://www.gardeningknowhow.com/edible/fruits/blackberries/what-are-marionberries.htm http://www.columbia-fruit.com/products/marionberries.html http://homeguides.sfgate.com/conditions-marionberry-bushes-74656.html http://localfoods.about.com/od/berries/tp/aboutberries.htm
what are marionberries