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Marionberry Seedless Jam

Known as the “King of Blackberries,” Marionberries are Oregon‘s best (or maybe least) kept secret. Come summertime, you’ll find this unofficial state berry in everything from pie to ice cream. These firm, juicy berries are oh so sweet, with the perfect pop of tartness. More flavorful than common blackberries, Marionberries make a delightful jam. We’re proud to use the best Oregon Marionberries in our Walls Berry Farm Oregon-grown Marionberry jam. 

INGREDIENTS

Blackberries, (Marionberries, Blackberries), Corn Syrup, Sugar, High Fructose Corn Syrup, Fruit Pectin, Citric Acid

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What Is a Marionberry?

In the 1950s, George Waldo, a plant breeder with the US Department of Agriculture, partnered with horticulturalists at Oregon State University to cross Chehalem and Olallie blackberry varieties. The result was a new, more flavorful type of blackberry. Waldo tested the hybrid berry extensively in Marion County, Oregon, eventually naming his creation the Marionberry.

Today, the Marionberry is synonymous with summer in Oregon. This large, juicy, and delicious super-blackberry has become a Pacific Northwest favorite and can be found in pie, icecream, pancakes, and, of course, Walls Berry Farm Marionberry Jam. 

Frequently Asked Questions

Why does the label say “Refrigerate after opening?”

Jellies, jams, preserves, and fruit spreads say "refrigerate after opening" to prevent spoilage and maintain quality once the seal is broken. While the sugar content in our fruit spreads acts as a preservative, sugar alone is not enough to protect against bacteria growth at room temperature. Because we do not use commercial preservatives, refrigeration is required to extend the life of our products and protect their flavor, texture, and safety after opening. 

What is the difference between jellies, jams, preserves, and fruit spreads?

The differences between jellies, jams, preserves, and fruit spreads lie in their ingredients, texture, and preparation methods:

  • Jelly: Made from fruit juice, sugar, and pectin (a gelling agent), jelly is transparent, firm, and smooth, with no fruit pieces. The juice is strained to remove solids, giving it a uniform texture.
  • Jam: Made from crushed or pureed fruit, sugar, and sometimes pectin, jam is thicker and chunkier than jelly, with small fruit pieces or a spreadable, pulpy consistency.
  • Preserves: Preserves contain whole or large pieces of fruit cooked with sugar, often without added pectin. The consistency is looser than jam, with a syrupy base and distinct fruit chunks, highlighting the fruit’s natural form.
  • Fruit Spread: This is a broad term for any fruit-based spread, often with less sugar than jams or jellies. Fruit spreads may include whole fruit, purees, or juice, and sometimes use alternative sweeteners or no added sugar. The texture varies widely from smooth to chunky.
Where does your fruit come from?

Walls Berry Farm sources the fruit for our jellies, jams, preserves, and fruit spreads exclusively from North American growers, ensuring high-quality, regionally grown ingredients.

Where Are Walls Berry Farm Products Made?

Walls Berry Farm products are crafted with care in Portland, Oregon using premium North American-sourced fruit.