Shrub · Berberidaceae
Heavenly Bamboo
Nandina domestica
Tough, drought-proof, and fiery in winter, nandina rewards a grower, though its berries are poison to wildlife.
Full sun
Every 7–14 days
USDA 6–9
3–8 ft · 0.9–2.4 m
Overview
Heavenly bamboo isn't a bamboo, and that shared silhouette is where the resemblance stops. Nandina charges up as an upright, cane-forming evergreen shrub in the barberry family, waving airy compound leaves on slender stems that pass for bamboo from across the yard. When the weather cools it flares into reds and purples, then hangs onto bright berries right through the depths of winter.
Almost nothing slows this shrub down. Nandina powers through heat, drought, and poor soil once it settles in, thrives from full sun clear to deep shade, and rides out cold down to -9°F (-23°C). Pests and deer mostly steer clear, which helped it spread across so many southern gardens.
That grit carries a sharp edge, though. The whole plant, and the berries most of all, packs cyanide-releasing compounds that poison animals and people, and birds that gorge on the fruit can die outright. Nandina also breaks out of gardens and turns invasive across the Southeast, so where you plant it, and whether you let it fruit, counts every bit as much as how you grow it.
Care
The short version: plant it in full sun to part shade in almost any well-drained soil, water it hard through the first season and then mostly forget it, and renew a few of the oldest canes each late winter to keep it packed and full.
Light
Nandina takes off in nearly any light, from full sun to deep shade. Sun is the switch for that red and purple winter color, though, so a plant parked deep in shade stays green and flat even while it grows just fine.
Water
Pour on regular water through the first season while the roots dig in, then back way off. Once established it turns genuinely drought tolerant and only wants a drink in a long dry spell, roughly every 7 to 14 days in the heat.
Soil
This shrub grabs hold in clay, loam, or sand as long as the drainage holds up. It powers through a wide pH range, from 5.0 to 8.5, so most garden soil suits it without any fuss.
Temperature
Nandina toughs out cold to about -9°F (-23°C) and shrugs off heat up to 100°F (38°C). That wide tolerance is exactly why it thrives across USDA zones 6 to 9 with no special protection.
Humidity
Plain outdoor air is all it wants, so there's no humidity figure to chase. It takes humid southern summers and drier spells in stride.
Feeding
Nandina is a light feeder that runs on almost nothing. One hit of balanced slow-release shrub fertilizer in spring does the job, and plenty of plants sail along with none at all.
Pruning
Prune in late winter by cane, cutting the stems at different heights just above a node so the shrub packs out instead of thinning at the top. Yank a few of the thickest, oldest canes at the base each year to keep it renewed, since flowers and fruit break on new growth.
Repotting
Nandina lives mostly in the landscape, but a container plant wants a fresh, larger pot every 2 to 3 years. Repot the moment you spot roots circling, water blasting straight through, or growth stalling.
Size & spacing
Count on a mature shrub of 3 to 8 feet (91 to 244 cm) tall and 2 to 5 feet (61 to 152 cm) wide. Give each plant room to hit that spread, or plan to rein it in with regular cane pruning.
When to plant
Nandina is a breeze to plant, dropping in during spring or fall while the soil is workable and the weather stays mild. It flowers in late spring, then fires off red berries in fall that cling on through the cold months.
Northern hemisphere
Southern hemisphere
Typical months for a temperate climate: start earlier in warm zones, later where spring frosts linger.
- Plant: spring or fall
- Harvest: Flowers in late spring; bright red berries develop in fall and persist through winter.
Hardiness
USDA hardiness zones: 6–9
Temperature: down to -23°C
Troubleshooting
Nandina ranks among the easiest shrubs going, and nearly every hiccup traces back to how it is pruned, how much light it grabs, or how far it runs. Catch the early signs below and you can steer the shape, the color, or those stray seedlings before any of it gets loose.
Volunteer seedlings sprinting well past the parent
Spot seedlings popping up far from the shrub and you are watching nandina flex its invasive streak, driving forward two ways at once. Birds gulp the berries and drop the seed off-site, while rhizomes and snapped root pieces resprout right around the base. Strip the berry clusters before they ripen, dig out every seedling and root fragment, and swap in sterile, non-fruiting cultivars or native shrubs to shut the spread down.
Fix:
- Remove berry clusters before they ripen to limit bird dispersal
- Dig out seedlings and rhizomes, removing all root fragments
- Replace with sterile, non-fruiting cultivars or native alternatives
Bare canes down low with all the leaves up top
Leave nandina unpruned for a few years and it climbs toward leggy, its lower stems going bare while the leaves crowd the tops, and deep shade pushes it there faster. Grab the shears in late winter and take about a third of the oldest, thickest canes clean to the ground, then shorten the rest to different heights above a node to spark fresh branching. Shift a shaded container plant into brighter light and it bushes right back out.
Fix:
- Cut about one-third of the oldest, thickest canes to the ground in late winter
- Head back remaining canes at varying heights just above a node to encourage branching
- Move container plants to a sunnier spot if heavily shaded
Leaves stuck on green when they should blaze red
Chase that purplish-red winter show and it comes down to sun, since a nandina buried in deep shade holds green or bluish-green while sunnier plants light up. Move the shrub or open up the canopy overhead and the seasonal color roars back. Plant it in full sun to light shade and you unlock the richest tones it has.
Fix:
- Relocate or plant in a position receiving more direct sun
- Thin overhead shade where practical
Toxicity
Treat the whole plant as poison, plain and simple. Every part of nandina, and the berries above all, holds compounds that release cyanide when chewed or digested, and no amount is safe for a pet, a child, or grazing livestock. The berries are especially deadly to birds, so keep animals clear and think hard before letting the shrub fruit at all.
Toxic to
Cats · Dogs · Horses · Rabbits · Livestock · Birds · People
Cats Severe
A cat that chews the leaves or berries can turn weak and unsteady on its feet within hours. Drooling, a heart that races then slows, seizures, and labored breathing all flag cyanide poisoning, so rush it to a vet the moment you see them.
Dogs Severe
A dog that gnaws the foliage or swallows berries may stagger, vomit, and fade fast as the cyanide grabs hold. Trembling, collapse, and a struggle to breathe can hit right behind that, so treat any suspected mouthful as a full emergency.
Horses Severe
Cyanide slams a horse hard. Bright red gums, breathing that speeds up then breaks into gasping, muscle tremors, and a sudden collapse can strike soon after grazing, and the outcome turns fatal fast without quick treatment.
Rabbits Severe
A rabbit is small enough that even a quick nibble lands hard. Weakness, a hunched and unresponsive posture, breathing trouble, and a rapid slide downhill follow, so keep the plant far out of reach.
Livestock Severe
Cattle, goats, and sheep that browse nandina can drop fast under the cyanide. Staggering, labored or gasping breaths, frothing, and collapse can hit with little warning before the animal is in serious trouble.
Birds Severe
Birds run the gravest risk of all. Cedar waxwings and others that gorge on the winter berries die of acute cyanide poisoning, often found dead with internal hemorrhage and zero warning, and one heavy feeding can wipe out a whole flock.
People Caution
No part of nandina is food, and the berries are not safe to eat. A swallowed berry or two rarely does serious harm to an adult, but children are far more vulnerable, so keep the fruit out of reach and call poison control if any goes down.
Keep berries and foliage away from pets, children, and grazing animals; supervise pets around landscape plantings.
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 nandina you'll grab today is one of a handful of named selections, and plenty were bred to fruit little or not at all, which dodges the worst of the plant's spread. These are the ones that turn up most.
Fire Power
A compact dwarf that erupts into brilliant red winter leaves and sets little or no viable fruit, making it the safe, non-invasive pick to reach for.
Gulf Stream
A tidy mounded selection that delivers strong red fall and winter color and produces almost no fruit.
Harbour Dwarf
A low, spreading dwarf that gardeners mass as a groundcover wherever they want the height kept down.
Alba
An unusual form that flaunts creamy white berries in place of the usual bright red.
How to propagate
DivisionEasy
Late winter to early spring · One growing season
The fastest way to multiply nandina is to divide an established clump in late winter or early spring, splitting off rooted canes along with chunks of rhizome. Each piece digs in and settles over a single growing season.
Stem cuttingsModerate
Summer · Several weeks to a few months to root
Come summer, snip semi-hardwood cuttings from the current season's growth. They run slower and less certain than division, taking root anywhere from several weeks to a few months, so keep at it.
SeedModerate
Fall after fruit ripens · Slow; one or more years to germinate and reach size
Seed works, but it crawls and is best skipped. Sow it in fall once the fruit ripens and it can take a year or more to sprout and bulk up. Because birds fling that same viable seed around and stoke the plant's invasiveness, seed sowing gets discouraged anywhere nandina can escape.
Myths
Heavenly bamboo is a true bamboo.
The name plays a trick on you. Nandina is not a bamboo at all, but an upright, cane-forming evergreen shrub in the barberry family, Berberidaceae. Its slender canes and fine leaves just hand it that bamboo-like look.
Nandina berries are a harmless winter food for songbirds.
The berries pack cyanide-releasing compounds, so they are anything but harmless. Birds such as cedar waxwings that gorge on a big clump in winter can die of acute cyanide poisoning, which is exactly why stripping the fruit protects the local wildlife.
Sources
- ASPCA Animal Poison Control Center
- NC State Extension Gardener Plant Toolbox
- Clemson Cooperative Extension Home & Garden Information Center
- University of Florida IFAS Gardening Solutions
- USDA National Invasive Species Information Center
- NIH/NCBI PMC (Journal of Veterinary Diagnostic Investigation)
- Maryland Department of Agriculture