Elderberry

Sambucus nigra is native to Europe, North Africa, and Western Asia, and has been naturalized in parts of North America and other temperate regions worldwide.

• The genus Sambucus comprises approximately 20–30 species distributed across temperate and subtropical regions of both hemispheres
• S. nigra is the most widely known and studied species, particularly in European herbal medicine traditions
• Fossil evidence suggests the genus has existed since at least the Tertiary period
• In European folklore, the elder tree was considered both sacred and dangerous — it was believed to house the 'Elder Mother,' a protective spirit, and cutting one down without permission was thought to bring misfortune
• Elderberry has been cultivated in Europe since at least the Middle Ages, with records of its medicinal use appearing in the works of Hippocrates, Dioscorides, and Pliny the Elder

Sambucus nigra is a fast-growing, deciduous shrub or small tree typically reaching 4–6 meters in height, occasionally up to 10 meters.

Stem & Bark:
• Young branches are light green with prominent lenticels and a soft, spongy pith (easily hollowed)
• Mature bark is gray-brown, deeply furrowed, and corky
• Pith was historically used in physics laboratories to demonstrate electrostatic phenomena

Leaves:
• Opposite, pinnately compound with 5–7 (occasionally 9) leaflets
• Each leaflet is ovate to lanceolate, 5–12 cm long, with serrated margins
• Dark green above, paler beneath; emit a somewhat unpleasant, musky odor when crushed

Flowers:
• Bloom in late spring to early summer (May–July in the Northern Hemisphere)
• Arranged in large, flat-topped to slightly convex corymbs, 10–25 cm in diameter
• Individual flowers are small (~5 mm diameter), creamy white, five-petaled, and highly fragrant
• Hermaphroditic and insect-pollinated, primarily by hoverflies and other small insects

Fruit:
• Ripen from late summer to autumn (August–October)
• Small, glossy, dark purple to black drupes, 3–5 mm in diameter
• Borne in drooping clusters; each berry contains 3–5 small seeds
• Rich in anthocyanins (particularly cyanidin-3-glucoside and cyanidin-3-sambubioside), which give the berries their deep color

Sambucus nigra is a highly adaptable pioneer species commonly found in hedgerows, woodland edges, roadsides, riverbanks, waste ground, and disturbed areas.

• Thrives in nitrogen-rich soils and is often an indicator of fertile, disturbed ground
• Tolerates a wide range of soil types, from sandy to clay, and pH levels from mildly acidic to alkaline (pH 5.5–8.0)
• Prefers full sun to partial shade; flowers and fruits most prolifically in full sun
• Hardy in USDA zones 4–7 (tolerating winter temperatures down to approximately −30°C)
• Provides important ecological services: flowers are a significant nectar source for pollinators, and berries are a critical food source for numerous bird species (including blackbirds, thrushes, and warblers) and small mammals
• Seeds are primarily dispersed by birds that consume the fruit
• Host plant for the larvae of several moth species, including the elder pearl moth

Elderberries are nutritionally dense, particularly valued for their high content of bioactive compounds:

• Rich in vitamin C (~36 mg per 100 g of raw berries, approximately 40% of the daily reference intake)
• High in dietary fiber (~7 g per 100 g)
• Good source of vitamin A, vitamin B6, iron, and potassium
• Exceptionally high in phenolic compounds, particularly anthocyanins — elderberry has one of the highest ORAC (Oxygen Radical Absorbance Capacity) values among common fruits
• Also contain flavonoids (quercetin, rutin, kaempferol), phenolic acids, and lectins
• Caloric content is relatively low (~73 kcal per 100 g of raw berries)

Raw elderberries and other plant parts contain cyanogenic glycosides (particularly sambunigrin), which can release hydrogen cyanide when metabolized.

• Consumption of raw berries, leaves, bark, or stems may cause nausea, vomiting, abdominal cramps, and diarrhea
• Cooking or drying the berries effectively degrades the cyanogenic glycosides and renders them safe for consumption
• The bark, leaves, and raw seeds should not be ingested
• Elderberry preparations should not be confused with other Sambucus species (e.g., S. racemosa, S. ebulus), which may have different toxicity profiles
• Individuals on immunosuppressive therapy, diabetes medications, or diuretics should consult a healthcare provider before using elderberry supplements

Elderberry is a low-maintenance, fast-growing shrub suitable for gardens, hedgerows, and wildlife-friendly plantings.

Light:
• Full sun to partial shade; best fruiting in full sun (minimum 6 hours of direct sunlight)

Soil:
• Adaptable to a wide range of soil types but prefers moist, fertile, well-drained soil
• Tolerates heavy clay and waterlogged conditions better than many fruit-bearing shrubs
• Optimal pH: 5.5–6.5 (slightly acidic to neutral)

Watering:
• Moderate water requirements; tolerates short dry periods once established
• Consistent moisture improves fruit yield; mulching helps retain soil moisture

Temperature:
• Fully hardy in temperate climates (USDA zones 4–7)
• Requires a period of winter dormancy; not suited to tropical or subtropical climates

Pruning:
• Prune in late winter or early spring while dormant
• Elderberry fruits on previous year's growth (on two- to three-year-old wood)
• Remove dead, damaged, or unproductive stems; thin to 6–10 main stems per plant
• Can be cut back hard (coppiced) every 3–4 years to rejuvenate

Propagation:
• Softwood cuttings in summer, hardwood cuttings in winter, or by seed
• Seeds require cold stratification (2–3 months at 2–4°C) to break dormancy
• Named cultivars (e.g., 'Haschberg', 'Black Lace', 'Black Beauty') are propagated vegetatively to maintain traits

Common Problems:
• Relatively pest- and disease-resistant
• Aphids may colonize young shoots
• Powdery mildew can occur in humid conditions
• Birds may consume ripe berries before harvest — netting may be necessary

Elderberry has a remarkably diverse range of traditional and modern applications:

Culinary:
• Berries are used to make jams, jellies, syrups, pies, and chutneys
• Elderflower cordial and elderflower champagne are popular traditional European beverages
• Elderberry wine has been produced for centuries and remains a staple of home winemaking
• Dried elderberries are used in teas and baking

Medicinal:
• One of the most important plants in European folk medicine, with documented use spanning over 2,000 years
• Hippocrates referred to the elder tree as his 'medicine chest'
• Modern clinical studies suggest elderberry extracts may reduce the duration and severity of cold and flu symptoms
• Widely available as standardized extracts, lozenges, syrups, and capsules

Other Uses:
• Hollowed stems were historically used to make whistles, flutes, and pea-shooters
• Wood is hard and fine-grained, suitable for small carved objects
• Leaves and bark have been used as an insecticide and to repel rodents
• Flowers are used in cosmetics and skincare products for their astringent and anti-inflammatory properties
• Excellent wildlife garden plant, supporting pollinators and birds