Shrub · Adoxaceae
Elderberry
Sambucus canadensis
Hand it sun, steady moisture, and a partner cultivar close by, and elderberry loads its canes with drooping clusters of dark fruit.
Full sun
Every 3–7 days
USDA 3–9
5–12 ft · 1.5–3.7 m
Overview
Elderberry is a quick, undemanding shrub that pays off in two seasons: broad, creamy flower heads opening flat in June, then tight clusters of dark fruit that color up from August into September. A member of the genus Sambucus, it runs wild over much of North America, leaning toward damp hollows and the edges of fields. Unchecked it reaches 5 to 12 feet (1.5 to 3.7 m) and throws out side stems to spread just as wide into a multi-stemmed thicket.
Tough and unfussy by nature, it takes cold all the way down through zones 3 through 9 and pays no mind to thin soil, soggy ground, or part shade. One rule stands firm from the start: the fully ripe berries, and only once cooked, are the safe part. The leaves, stems, bark, roots, and any raw or unripe fruit hold cyanogenic compounds that sicken people and animals alike.
If the fruit is the point, plant a second cultivar within reach, because a single shrub sets only a light crop. Two different cultivars blooming together pollinate one another and bend the canes under fruit. Hand it room, steady water, and a hard cut each winter, and elderberry comes back fast and full.
Care
The short version: full sun to part shade in rich, evenly moist soil, with a balanced spring feed, a hard dormant-season pruning each winter, and a second cultivar nearby for a full crop.
Light
Fruit fills out best in full sun, where the flat flower heads and the clusters behind them swell to full size. The shrub puts up with partial sun and even partial shade, but the deeper the shadow, the lighter the load of berries.
Water
Hold the soil evenly moist, since the shallow, fibrous roots run dry quickly and the plant suffers most while it flowers and fruits. Soak it deeply through every dry stretch, every 3 to 7 days as conditions ask, while never letting the ground turn waterlogged.
Soil
Set it in rich, moist, well-drained loam, though elderberry bends to clay, sand, and ground that runs wet or dry without complaint. It works across a broad pH span of 5.5 to 7.5, so most garden dirt will serve.
Temperature
This is a truly hardy shrub, riding out winter cold to -29°F (-34°C) and summer heat to 95°F (35°C). That spread covers most temperate gardens with nothing extra required.
Humidity
Ordinary humidity of 40% to 70% suits it, and outdoor air seldom dips below that. Crowded, motionless air does breed powdery mildew, so moving air counts for more than the moisture itself.
Feeding
Give one feed in early spring as the buds stir, working in a balanced or nitrogen-rich mix like 10-10-10 or composted manure. A single seasonal feeding carries a plant this fast-growing through the year.
Pruning
Cut in the dormant season, late in winter. On a settled plant, take dead, weak, and 3-plus-year-old canes down to the base to drive the strong 1 to 2 year wood, and some growers level the whole stand to the ground each year. Tug out root suckers along the way so it stays put.
Repotting
Elderberry wants open ground, not a pot, so repotting barely figures in. If one must sit in a container, shift it on before the roots circle the inside, or it stalls and wilts soon after each drink.
Size & spacing
A grown shrub climbs 5 to 12 feet (1.5 to 3.7 m) and reaches out nearly as far, 6 to 12 feet (1.8 to 3.7 m) across. Leave each one ample room so air slips through the canes and mildew finds no hold.
When to plant
Elderberry keeps step with the calendar. Plant dormant bare-root stock or cuttings in early spring once the hard frosts let go, watch for the flat creamy flower heads in June, and gather the dark, ripe berries from August into September.
Northern hemisphere
Southern hemisphere
Typical months for a temperate climate: start earlier in warm zones, later where spring frosts linger.
- Sow: Late winter, only after 60-90 days of cold-moist stratification; seed is slow and erratic, so cuttings are preferred
- Plant: Early spring after the last hard frost, using dormant bare-root plants or cuttings
- Harvest: Flowers in June; dark berry clusters ripen August to September
Hardiness
USDA hardiness zones: 3–9
Temperature: down to -40°C
Troubleshooting
Elderberry is a hardy thing, and most of its troubles stay minor. Powdery mildew and aphids mar the look more than the health, while cane dieback and raiding birds call for a faster hand. Find what matches below and step in before a small spot widens.
One lone cane drooping and browning while the rest stand green
A single failing cane points to cane borers or fungal dieback working through old or injured wood. Slice that cane out flush at the base and burn or bin it. Keeping up a yearly dormant prune, pulling every cane past 3 years old, stops the rot and tunneling from getting a foothold.
Fix:
- Cut out and destroy affected canes at the base
- Remove old (3-plus-year) and damaged canes during dormant pruning
A pale, dusty film spreading across the leaf blades
What you are seeing is powdery mildew, a fungus that grips the crowded interior leaves where shade pools and the air goes dead still. Open the thicket by thinning canes, peel away the most coated leaves, and only reach for a labeled fungicide or horticultural oil if it keeps creeping. On a strong shrub it stays a surface blemish.
Fix:
- Thin and prune canes to improve air flow
- Remove and dispose of badly affected leaves
- Apply a labeled fungicide or horticultural oil if severe
Tender shoot tips going tacky and curling under a crawling crust
Look closely and you will find aphids packed onto the softest new growth, the kind a heavy nitrogen feed keeps producing. Knock the colony loose with a sharp spray of water, then circle back with insecticidal soap or horticultural oil if stragglers cling on. Leave the lady beetles and lacewings be and they finish the job.
Fix:
- Spray off with a strong jet of water
- Apply insecticidal soap or horticultural oil
- Encourage lady beetles and lacewings
Darkening clusters going bare almost overnight
Birds spot the ripening fruit before you do and can pick a whole cluster clean within hours. Throw netting across the shrub as the berries begin to darken and cut each ripe cyme the day it turns. Bob Gordon helps as well, since the weight of its fruit flips the clusters into a downward droop that birds find harder to reach.
Fix:
- Net plants as fruit begins to ripen
- Harvest whole cymes promptly when berries darken
- Grow cultivars with drooping clusters such as Bob Gordon
Toxicity
Here the plant asks for caution. The leaves, stems, bark, roots, and any raw or unripe berries carry cyanogenic glycosides that free cyanide and upset the stomach, and they harm people and animals both. Only fully ripe berries that have been cooked are safe to eat, so keep children, pets, and livestock away from every green part of the shrub.
Toxic to
Cats · Dogs · Horses · Rabbits · Livestock · Birds
Safe for
People
Cats Moderate
Once a cat has gnawed the foliage, a cane, or raw fruit, expect drooling first, then vomiting, loose stools, and a dull, withdrawn posture. The danger climbs with a real mouthful of green tissue, where the freed cyanide can leave the cat weak.
Dogs Moderate
A dog that has been chewing on the plant tends to vomit, pass loose stools, lose interest in food, and slump into low energy. The usual outcome is a churned-up stomach, though a big serving of raw fruit or leaf can deepen the signs.
Horses Toxic
Foliage and woody growth pose a serious threat to a horse, and the cyanide set loose can surface as drooling, gut pain, strained breathing, and an unsteady gait. Keep elder fenced clear of any paddock or pasture within a horse's reach.
Rabbits Toxic
Keep leaves, canes, and raw berries away from a rabbit entirely. Even a nibble of the green plant can stall the gut and send a rabbit downhill fast, so the whole shrub needs to stay beyond their reach.
Livestock Toxic
Cattle, goats, and sheep browsing the leaves or green fruit can take on cyanide poisoning, showing bloat, tremors, and, at worst, collapse. Wilting prunings flung across a fence line are a common path to poisoning stock.
Birds Caution
Wild birds work through the ripe berries unharmed and scatter the seed as they go, one reason the shrub fruits so freely. The green tissue and raw, unripe fruit still carry cyanide, so cage birds should never be offered any of it.
People Cooked ripe fruit safe
Berries picked fully ripe and then cooked are a safe, well-loved kitchen staple, and cooked or processed flowers pose no trouble either. Taken raw, the fruit along with any leaf, stem, bark, or root brings on nausea, vomiting, and diarrhea, so cook the berries and discard everything green.
Keep children and pets from chewing leaves, stems, bark, or unripe berries. Never eat raw berries or any green parts; always cook ripe berries and discard stems and leaves before eating.
Helpline numbers
United States
ASPCA Animal Poison Control: (888) 426-4435 (fee applies)
Poison Control: (800) 222-1222
Canada
Poison Centres: 1-844-764-7669
Varieties
Most home growers settle on a short list of proven cultivars, and since the plant wants a pollination partner, those usually go in as pairs. Here are the ones worth knowing by name.
Adams
A strong-growing old American selection prized for its large fruit clusters, typically set next to York so the pair can trade pollen.
York
Among the biggest berries you can grow sit on York, and it serves as a dependable pollen partner for Adams.
Bob Gordon
A heavy-yielding cultivar out of Missouri whose ripening clusters tip over and hang downward, keeping a fair share of the fruit beyond a bird's reach.
Sambucus nigra (European black elder)
Counted here as an alias, this European species reaches a taller, more tree-shaped form and is the parent of many ornamental and medicinal types.
Companions
Elderberry's most useful neighbor is another elderberry. A second cultivar that blooms at the same time is what turns a light crop into a heavy one.
Plant near
A second, different elderberry cultivar (for example Adams with York): Cross-pollination between two cultivars that bloom at the same time increases fruit set and yield.
How to propagate
Few shrubs copy themselves as easily, and three of the four methods rarely fail. Most growers pass over seed and pull free duplicates from a plant already in hand.
Stem cuttingsEasy
Hardwood cuttings in late winter while dormant; softwood cuttings in early summer · Roots in a few weeks; transplantable within one season
Nothing starts an elderberry faster. Cut pencil-thick lengths carrying 2 or 3 nodes, hold them evenly moist, and roots push out inside a few weeks. A cutting struck this year is set to go to its permanent spot by the close of the same season.
DivisionEasy
Dormant season, late winter to early spring · Establishes within one growing season
Because the shrub keeps sending up rooted suckers around the parent clump, you can lift and split those while the plant sleeps. Every division arrives with its own roots already formed and settles in across one growing season.
LayeringEasy
Spring to summer · Roots over one season before severing
The long, supple canes make layering straightforward. Peg a low cane to the soil from spring through summer, allow a full season for roots to form where wood meets ground, then sever it as a separate plant.
SeedDemanding
Sow after 60-90 days of cold-moist stratification · Slow and erratic; 1-2 or more years to a plantable shrub
Going by seed is the long, patient route. It calls for 60 to 90 days of cold, moist stratification before anything sprouts, sprouting comes up uneven, and a plantable shrub is 1 to 2 years or more away. Seedlings drift from their parent too, so cuttings keep a named cultivar true to type.
Myths
Every part of an elderberry is deadly poison, so none of it can be eaten.
Cooked ripe berries and flowers have fed and treated people for centuries and are eaten freely once heated. Only the leaves, stems, bark, roots, and raw or unripe berries are toxic, and cooking the ripe fruit settles the matter.
Ripe elderberries are fine to eat straight off the bush.
Picked raw or unripe, the berries hold cyanogenic glycosides that can bring on nausea, vomiting, and diarrhea. They are safe only after cooking, which is the reason nobody grazes them by the handful off the cane.
One elderberry bush is enough for a full crop.
On its own a single plant is only partly self-fruitful and sets a sparse crop. Plant two or more cultivars that bloom at the same time and both fruit set and yield jump sharply.