Blueberry vs Blackberry: What's the Difference?
Short answer: Blueberry (Vaccinium) and blackberry (Rubus) look similar when dark but are built differently. A blueberry is a true berry - smooth, round, deep blue with a silvery bloom and a tiny five-pointed crown, with soft seeds inside. A blackberry is an aggregate fruit of glossy drupelets clustered around a core that stays inside the fruit (unlike a raspberry's, which pulls out). Blueberries are mild and sweet; blackberries are richer, sweet-tart, and more seedy.
| 🫐 Blueberry | 🖤 Blackberry | |
|---|---|---|
| Taste | Mildly sweet with gentle acidity and a floral, faintly piney note; the pop of the skin is half the pleasure. Wild/lowbush berries are smaller, tarter, and dramatically more flavorful than cultivated. | Deep, winey sweet-tart with earthy, almost woodsy notes and gentle tannin; fully ripe berries are lush, underripe ones sour and astringent. Bigger isn't sweeter — black and dull-matte is. |
| Type | Berry | Berry |
| Peak season | Summer | Summer, Autumn |
| Origin | North America; domesticated astonishingly recently — the first cultivated crop shipped in 1916 | Temperate Eurasia and North America — one of humanity's oldest foraged fruits |
| Calories (per 100 g) | 57 | 43 |
| Sugar (per 100 g) | 10 g | 4.9 g |
| Vitamin C (per 100 g) | 9.7 mg | 21 mg |
| Typical price | Mid | Mid |
Once they darken, blueberry and blackberry can look like the same handful of fruit - but they’re not even in the same family.
A blueberry (Vaccinium species) is a genuine true berry: round, smooth-skinned, deep blue under a silvery bloom, and topped by a tiny five-pointed crown where the flower was. Its seeds are so small and soft you never notice them. The taste is mild, gently sweet, and a little tangy, and the plant is a heath-family shrub, kin to cranberry and rhododendron.
A blackberry (Rubus species) is an aggregate fruit, made of many glossy drupelets clustered together, each with a seed you can feel between your teeth. Crucially, it keeps its central core when picked - that’s what separates it from a black raspberry, which comes away hollow. Blackberries are richer and more sweet-tart, and grow on thorny rose-family brambles.
The quick test: round, smooth, and crowned is a blueberry; a glossy cluster of seedy drupelets is a blackberry.
Frequently asked questions
Is a blueberry a true berry and a blackberry not?
Yes. A blueberry is a botanical true berry - a single fruit with seeds embedded in the flesh, developed from one flower's ovary. A blackberry is an aggregate fruit: many small drupelets, each with its own seed, fused into one. They also come from different families - blueberry from Ericaceae (heaths), blackberry from Rosaceae (roses).
How do I tell a blackberry from a black raspberry?
Pick it. A blackberry keeps its white central core, so it stays solid; a black raspberry pulls free of its core and is hollow like a cap. Blackberries are also usually larger and glossier, while black raspberries have a slight dusty bloom.
Which is healthier?
Both are nutrient-dense and rich in antioxidants. Blackberries tend to have more fibre (from all those seeds) and vitamin C, while blueberries are famous for anthocyanins, the pigments behind their blue colour. Eating a mix beats choosing one.