Marionberry
Rubus × 'Marion' · Rosaceae · also known as Marion blackberry, Cabernet of blackberries
Oregon's celebrated blackberry cultivar — glossy, medium-large, and deeply flavored with a wine-like balance of sweet, tart, and earthy notes. Bred in Marion County in 1956 and now the state's signature berry.
At a glance
- Taste
- Rich, complex, and balanced — sweeter and earthier than a common blackberry with bright acidity and a hint of that "wine" depth that earned it the nickname "cabernet of blackberries."
- Origin
- Oregon, USA (bred by the USDA/Oregon State, released 1956)
- Grown in
- United States
- Peak season
- Summer
- Notable varieties
- Marion (the cultivar itself)
Sensory & practical profile
Taste fingerprint
- Sweetness
- Tartness
- Aroma
- Juiciness
- Firmness
Approximate, at peak ripeness · 0–5
- Ripe when
- Deep dull black (past the shiny stage), plump, and releasing at a touch; shiny black or red berries are underripe and sour.
- How to eat
- Eat fresh with cream, or bake into pie and cobbler and cook into jam and syrup; freeze the surplus.
- Typical price
- Everyday
Nicknamed the "cabernet of blackberries," the marionberry is grown almost entirely in Oregon — which produces nearly the whole world's supply and treats the berry as a matter of state pride.
When it's in season, by region
| Region | Peak months |
|---|---|
| North America | Jul–Aug (Oregon) |
How to select & store
Picking a ripe one
Choose deep, dull black (not shiny-red) berries that are plump and give slightly; a true black color and easy release mean ripe. Marionberries are soft, so handle gently.
Storing it
A day or two refrigerated — soft and perishable. Most of the crop is frozen or processed, which preserves the flavor well.
Practical uses
🍽️ Culinary
- Marionberry pie and cobbler — Oregon classics
- Jam, syrup, and ice cream
- Sauces for meats and desserts; marionberry vinaigrettes
- Fresh with cream in season
🌿 Health & traditional
- Antioxidant-rich; enjoyed as food
🎎 Cultural
- Oregon grows nearly all the world's marionberries; it's a point of state pride and festival fame
- The result of a deliberate mid-century breeding program, named for the county where it was tested
Eating marionberry: what to know
What regular consumption looks like
Marionberry is a nutritious everyday fruit, best enjoyed as part of a varied diet. It is a good source of fibre (about 5.3 g per 100 g), which supports digestion and satiety. Its pigments and polyphenols are antioxidants that population studies associate with heart health, though that reflects overall diet rather than any single fruit.
Sensible amounts
A typical fruit serving is roughly a handful, one medium fruit, or about 80 g, and two or more varied fruit servings a day is a sensible everyday pattern.
Evidence & conditions
As a whole fruit, Marionberry contributes fibre, vitamins, and beneficial plant compounds, but it has not been shown to treat or prevent any specific condition — so it is best enjoyed as part of a healthy diet rather than as a remedy.
Marionberry: frequently asked questions
What does marionberry taste like?
Rich, complex, and balanced — sweeter and earthier than a common blackberry with bright acidity and a hint of that "wine" depth that earned it the nickname "cabernet of blackberries."
When is marionberry in season?
Marionberry is typically in season North America (Jul–Aug (Oregon)). Peak months shift between the northern and southern hemispheres.
How do you eat marionberry?
Eat fresh with cream, or bake into pie and cobbler and cook into jam and syrup; freeze the surplus.
How do you know when marionberry is ripe?
Deep dull black (past the shiny stage), plump, and releasing at a touch; shiny black or red berries are underripe and sour.
Is marionberry good for you?
Marionberry is a nutritious everyday fruit, best enjoyed as part of a varied diet. It is a good source of fibre (about 5.3 g per 100 g), which supports digestion and satiety. Its pigments and polyphenols are antioxidants that population studies associate with heart health, though that reflects overall diet rather than any single fruit.
How much marionberry should you eat?
A typical fruit serving is roughly a handful, one medium fruit, or about 80 g, and two or more varied fruit servings a day is a sensible everyday pattern.
Not all blackberries are equal, and Oregon will happily tell you which one is best. The marionberry — a cultivar bred by the USDA and Oregon State and released in 1956 — is the state’s signature berry, glossy and medium-large, with a rich, complex flavor that balances sweet, tart, and earthy depth. Fans call it the “cabernet of blackberries.”
Oregon’s berry
That wine-like complexity is exactly what sets it apart from a generic blackberry: more balanced, more aromatic, with a bright acidity that keeps it from cloying. It’s the definitive berry for Oregon pie and cobbler, jam and syrup, and increasingly for sauces and vinaigrettes. Nearly all the world’s marionberries grow in Oregon, where the harvest is a source of festivals and pride. Like most fine bramble berries it’s soft and perishable, so much of the crop is frozen or processed — which, happily, preserves its flavor well. Pick the deep, dull-black berries over the shiny ones; the shine means they’re not ripe yet. For its tangled-hybrid cousins, see the boysenberry and loganberry.
