Oregon's famous berry, the marionberry, is a hybrid between the Olallie and Chehalem blackberries and was originally bred at Oregon State University in the early 1900s as part of a partnership with the US department of agriculture. This flavorful berry has since become known as "the king of blackberries" and is still exclusively produced in Oregon to this very day. We offer an extensive variety of marionberry products including, jams, syrups, marionberry coated hazelnuts, scented candles, teas and cake mixes. Marionberry. One of the Pacific Northwest's true gems. Uniquely west coast, individualistically one of the best berries for jams, jellies, and spreads. If you don't like jelly we have it in teas, chocolates, honeys, and more. Aromatic yet not as sweet as related berries. Oregon is famous for fresh, vibrant, rich flavor produce.