Shrub · Celastraceae
Burning Bush
Euonymus alatus
Set it where full sun reaches all afternoon, and the autumn foliage flares a deep scarlet that reads from the far end of the garden.
Full sun
Every 7–14 days
USDA 4–8
15–20 ft · 4.6–6.1 m
Overview
Burning bush has long held a place in the home landscape for a single, decisive reason: the autumn moment. Through summer the foliage keeps a calm, unremarkable green that recedes politely behind showier neighbors, and then the days shorten and the whole shrub flushes a fierce scarlet-red that turned it into a fixture of driveways and front yards for decades. Look closely at the framework and you'll find corky, winged ridges running the length of the stems, the detail that earned it the name winged euonymus.
As a piece of the yard it asks for next to nothing. With its roots settled it brushes off a dry spell, accepts clay, loam, or sand without protest, and rides out winters as low as -29°F (-34°C), which makes it an easy fit for a low-fuss, set-and-forget border. That very durability is the problem. Birds carry off the orange-red fruit and drop the seed along woods and fence lines, where it thickens into dense stands that elbow out native plantings.
For that reason, burning bush is now invasive across much of the eastern and central United States and outright banned in several states. To bring the same autumn blaze into a planting scheme without the spread, turn instead to natives like chokeberry, serviceberry, or ninebark, which slot into the same role in the design.
Care
The short version: give it a full-sun position for the richest fall color, set it in well-drained soil of almost any type, see it through its first year with steady water and then mostly let it be, and prune in late winter to hold its shape in the planting.
Light
Place burning bush in full sun for the strongest fall color. It will tolerate partial shade and grow on without trouble, but a shaded specimen leafs out green in autumn and forgoes the scarlet display that gives the shrub its purpose in the garden.
Water
Keep a new planting watered on a regular schedule through its first year, then ease off. Once established it is genuinely drought tolerant and asks for water only every 7 to 14 days during a dry spell. Keep it out of constantly wet soil, which opens the door to twig blight.
Soil
This shrub settles into almost any well-drained soil, clay, loam, or sand, across a broad pH of 5.5 to 8.0. Drainage is its one non-negotiable, since soggy ground is the root of most of its troubles.
Temperature
Burning bush is cold-hardy from roughly -29°F to 95°F (-34°C to 35°C), which spans USDA zones 4 through 8. Hard winters leave it unbothered, and that same resilience is part of why it slips so readily into the wild.
Humidity
Everyday outdoor humidity suits it fine, so there is nothing to manage on that front. Air movement matters more than moisture in the air, since stagnant, crowded growth is what hands fungal twig blight its opening.
Feeding
This is a shrub that rarely calls for feeding. One application of balanced slow-release fertilizer in spring covers it, and only when growth looks weak. An excess of nitrogen pushes leafy green at the expense of the fall color you brought it in for.
Pruning
Prune in late winter or early spring before new growth stirs, whether you are tidying its outline or cutting it back hard, which it shrugs off. Clipping away the spent fruit also curbs the seedlings that make this plant a liability.
Repotting
Burning bush is a landscape shrub and seldom lives in a pot, so repotting rarely comes up. Should you keep a young one in a container, move it to a larger one when roots circle the base, water runs straight through, or the top growth stalls.
Size & spacing
Left to its own devices it builds into a substantial shrub of 15 to 20 feet (4.5 to 6 m) tall and 8 to 12 feet (2.4 to 3.7 m) wide. Allow it that footprint in the layout, or commit to regular pruning to keep it in scale.
When to plant
Burning bush is a hardy deciduous shrub, which keeps its calendar refreshingly uncluttered. Set it in the ground in spring or fall while conditions stay mild, expect quiet green flowers around May, and save your attention for the main event when the foliage turns red in autumn beside its orange-red fruit.
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: Inconspicuous yellow-green flowers in spring (about May), followed by red-purple fall foliage and orange-red fruit
Hardiness
USDA hardiness zones: 4–8
Temperature: down to -34°C
Troubleshooting
Burning bush asks little and tends to telegraph its few complaints clearly. A muted autumn points back to where you placed it, while spots, webbing, or dieback point to a pest or a waterlogged root zone. Match what you are seeing to the notes below and step in before it travels.
Dull, freckled leaves veiled in delicate webbing
When a hot, dusty stretch leaves the foliage looking faded and webbed underneath, suspect spider mites, which thrive in exactly those dry conditions. Hold a sheet of white paper beneath a leaf, give it a tap, and you'll spot the tiny crawlers. A firm rinse from the hose dislodges them, and a follow-up of horticultural oil or insecticidal soap, applied more than once, clears the generation waiting in the wings.
Fix:
- Spray foliage forcefully with water to dislodge mites
- Apply horticultural oil or insecticidal soap
- Repeat treatments to break the mite life cycle
Twigs and small branches dying back
A scatter of dead twigs and sunken, sunk-in cankers usually signals twig blight, a fungus that settles in where the ground stays wet. It surfaces first in low, poorly drained pockets that never quite dry out. Cut back well past each lesion, wipe your tools between cuts so nothing rides along to the next stem, and correct the drainage that gave it the opening.
Fix:
- Prune out and dispose of affected twigs well below the damage
- Improve drainage and avoid overwatering
- Clean pruning tools between cuts
Chalky scale crusting the stems, leaves fading yellow
Crusty white and brown bumps gripping the stems are the signature of euonymus scale, a sap-feeding insect that yellows the leaves and slowly saps the plant. Remove the most heavily encrusted stems and coat what remains with horticultural oil to smother the rest. The window that counts is when the young crawlers are on the move in late spring and summer, since that is the moment a spray can reach them.
Fix:
- Prune out heavily infested stems
- Apply horticultural oil to smother scale
- Treat crawlers when active in late spring to summer
Lackluster autumn tone, no scarlet display
The whole reason this shrub anchors a fall border is the autumn display, so a quiet, greenish season almost always traces back to too little sun. A specimen set in a shady corner will leaf out happily yet never catch fire, and a heavy hand with nitrogen keeps it leafy at the expense of the show. Shift it into an open, sunny spot and pull back on feeding, and the color returns the next autumn.
Fix:
- Relocate or transplant to a full-sun site
- Reduce or stop nitrogen fertilizing
- Thin overhanging vegetation to increase light
Toxicity
Regard the entire shrub as poisonous. The leaves, bark, and fruit carry alkaloids and cardiac glycosides that bring on vomiting and diarrhea and, in larger amounts, unsettle the heartbeat. It is unsafe around dogs, cats, horses, livestock, and people alike, so the fallen berries and prunings belong well out of reach of any household.
Toxic to
Cats · Dogs · Horses · Rabbits · Livestock · Birds · People
Cats Moderate
A cat that nibbles the leaves or fruit will typically drool and bring it back up, with diarrhea and an aching belly close behind. Past a certain amount, the cardiac glycosides start to upset the heartbeat, and an ordinary bad night becomes an emergency.
Dogs Moderate
Dogs that sample any part of the shrub tend to vomit and pass loose, painful stools within a few hours. A large mouthful adds weakness and an uneven heart rhythm, which makes a call to the vet the sensible choice.
Horses Moderate
Because horses cannot vomit, the toxins linger and surface as colic, diarrhea, and a heavy, faltering gait. Grazing any real quantity can throw off the heartbeat and calls for a vet without delay.
Rabbits Toxic
Those same alkaloids and glycosides land hard on a rabbit's small frame, triggering gut stasis, diarrhea, and a quick downturn. There is no part of this plant that belongs within a rabbit's reach.
Livestock Toxic
Cattle, sheep, and goats that browse the foliage or fallen fruit suffer serious digestive upset, and larger amounts bring on dangerous heart-rhythm trouble. Grazing animals should be fenced well clear of any hedge or windbreak that holds it.
Birds Caution
Birds swallow the showy fruit and pass the seed intact, which is precisely how the shrub travels into wild ground. They cope with the arils, yet the seeds and foliage remain a hazard for caged or ground-feeding species.
People Caution
Nothing on this shrub belongs on a plate. The fruit and seeds can prompt vomiting and diarrhea, and a heavy dose carries the same heart-rhythm risk, so keep curious children well away from the eye-catching berries.
Keep fallen fruit and prunings away from pets and small children; ingestion of several leaves or seeds commonly causes gastrointestinal upset.
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
A handful of named selections show up at the garden center, most of them simply trimmer versions of the same plant. Keep in mind that none of them resolves the invasive concern.
Compactus
A dwarf winged form that settles around 10 feet and fills in denser than the species, yet it still loads up with seed and spreads every bit as aggressively.
Rudy Haag
A very tight, slow-growing pick that holds at roughly 3 to 5 feet tall and produces far less fruit than most.
How to propagate
Burning bush multiplies with ease, which is a large part of why it travels so freely in the wild. You can root cuttings deliberately or, all too often, find volunteer seedlings turning up on their own.
Stem cuttingsModerate
Softwood cuttings in early summer or semi-hardwood cuttings in mid to late summer · Several weeks to root, then grown on for a season or more
Pull softwood cuttings in early summer or semi-hardwood ones a bit later, dip the cut ends in rooting hormone, and hold them in humid air until they catch. Rooting runs over several weeks, after which they want a full season or more of growing on before they earn a place in the ground.
SeedEasy
Seed sown after cleaning and cold stratification · Germinates readily; note that prolific self-seeding is the main reason this plant is invasive
Cleaned and cold-stratified seed comes up without fuss, and that ease is the whole trouble. Birds feed on the fruit and broadcast the seed widely, which is how the shrub clears the garden fence and goes invasive. Raising it from seed by choice is best avoided.
Myths
Choosing a petite, well-behaved burning bush variety is harmless, because the smaller forms simply stay where they are put.
Compact picks such as Compactus still set abundant bird-carried seed, which lets them slip into wild ground just as easily as the full-size shrub. Burning bush is banned or regulated in several states no matter the cultivar, dwarf forms included.