Nannyberry
Viburnum lentago · Adoxaceae · also known as Sweet viburnum, Sheepberry, Wild raisin, Nanny plum
A blue-black North American berry that ripens sweet, soft, and date-like — tasting of banana and raisin around a large flat seed. A wild fruit of the northern woods and hedgerows, gathered late into autumn and eaten fresh or made into fruit butter.
At a glance
- Taste
- Sweet and mild when fully ripe, with soft, thick flesh tasting of banana, date, and prune around a single large flat stone; astringent before ripening, then almost like a wild raisin.
- Origin
- Northeastern and central North America
- Grown in
- United States, Canada
- Peak season
- Autumn
Sensory & practical profile
Taste fingerprint
- Sweetness
- Tartness
- Aroma
- Juiciness
- Firmness
Approximate, at peak ripeness · 0–5
- Ripe when
- Fully blue-black, soft, and slightly shrivelled, often hanging into late autumn; the longer it hangs, the sweeter and more raisin-like it gets.
- How to eat
- Nibble the sweet flesh off the large flat seed fresh, or cook and sieve it into fruit butter and jam.
- Typical price
- Budget
The nannyberry hangs on its branches deep into autumn, drying into a sweet, raisin-like fruit — which is why it's also called "wild raisin," a rare wild sweet available when most other fruit is long gone.
When it's in season, by region
| Region | Peak months |
|---|---|
| North America | Sep–Nov, sweetening late into the season |
How to select & store
Picking a ripe one
Foraged from small trees and shrubs in woods and along fences — choose fully blue-black, soft, slightly shrivelled fruit; they hang on into late autumn and sweeten with time. Green and red fruit is unripe.
Storing it
A few days refrigerated once ripe; they dry on the plant into raisin-like fruit that keeps. Best cooked into butter or jam, sieving out the large seeds.
Practical uses
🍽️ Culinary
- Eaten fresh when fully ripe, the sweet flesh nibbled off the flat seed
- Cooked and sieved into fruit butter and jam
- Added to pies and sauces
- Dried like wild raisins
🌿 Health & traditional
- Bark and fruit used in some Indigenous and folk traditions
🎎 Cultural
- A cherished late-season forage of the northern woods, sweetening as autumn deepens
- Its many names — sheepberry, wild raisin, sweet viburnum — reflect its wide familiarity
Eating nannyberry: what to know
What regular consumption looks like
Nannyberry is a nutritious everyday fruit, best enjoyed as part of a varied diet. It is a good source of fibre (about 3 g per 100 g), which supports digestion and satiety.
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, Nannyberry 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.
Nannyberry: frequently asked questions
What does nannyberry taste like?
Sweet and mild when fully ripe, with soft, thick flesh tasting of banana, date, and prune around a single large flat stone; astringent before ripening, then almost like a wild raisin.
When is nannyberry in season?
Nannyberry is typically in season North America (Sep–Nov, sweetening late into the season). Peak months shift between the northern and southern hemispheres.
How do you eat nannyberry?
Nibble the sweet flesh off the large flat seed fresh, or cook and sieve it into fruit butter and jam.
How do you know when nannyberry is ripe?
Fully blue-black, soft, and slightly shrivelled, often hanging into late autumn; the longer it hangs, the sweeter and more raisin-like it gets.
Is nannyberry good for you?
Nannyberry is a nutritious everyday fruit, best enjoyed as part of a varied diet. It is a good source of fibre (about 3 g per 100 g), which supports digestion and satiety.
How much nannyberry 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.
The nannyberry is one of the northern woods’ quiet sweets. A blue-black fruit of small trees and hedgerows across northeastern and central North America, it ripens soft and sweet, tasting of banana, date, and prune — earning it the affectionate name “wild raisin.”
A late-autumn wild sweet
Nannyberries have perfect timing: they hang on the branch and sweeten deep into autumn, drying almost into raisins, so they offer a rare wild sweetness long after most fruit is gone. Fully ripe — blue-black, soft, a little shrivelled — the thick flesh is nibbled off the single large flat seed, or, more efficiently, cooked and sieved into a rich fruit butter or jam (that big seed limits how much flesh you get per berry). They’re also dried like wild raisins and folded into pies and sauces. Known by a scatter of homey names — sheepberry, sweet viburnum, wild raisin — the nannyberry is a familiar, generous forage of the North American fall, best enjoyed the later and softer you find it. For fellow northern wild sweets, see the saskatoon.
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