Shrub · Celastraceae
Evergreen Euonymus
Euonymus japonicus
A tough, shade-friendly evergreen that clips into a hedge and barely asks anything of you.
Full sun
Every 7–14 days
USDA 6–9
10–15 ft · 3–4.6 m
Overview
Evergreen euonymus is one of those shrubs you can pretty much plant and forget about. It hangs onto its glossy leaves all year, doesn't mind whether it's in bright sun or deep shade, and laughs off cold right down to -9°F (-23°C). That kind of toughness is exactly why you see it sheared into hedges and tucked along foundations all over the place.
It's part of a big group of spindle trees, and the upright Japanese species (Euonymus japonicus) is one of the most popular. Why do gardeners keep reaching for it? Because it shears cleanly, fills in pretty fast, and comes in variegated forms with gold or white-edged leaves that can really wake up a dull corner.
The flowers are tiny and easy to walk right past, so this is really a foliage-and-structure plant, not a flower show. Give it well-drained ground and a little air around the leaves, and it'll look good for years. Crowd it, though, and you're basically inviting its two main headaches, scale and mildew.
Care
The short version: anywhere from sun to full shade in well-drained soil, plus a deep drink only when the top half of the root zone has dried out. Shear it in late spring, feed it lightly once in early spring, and just keep half an eye out for scale.
Light
You can grow this shrub in just about any light, anywhere from full sun to full shade. Sun gives you the fullest growth and the brightest variegation, while a shadier corner still works fine, it just leaves the plant a bit looser and more open.
Water
Give it a deep drink, then hold off until the top half of the root zone dries, which usually lands around every 7 to 14 days. It shrugs off drought once it's settled in, but it really hates soggy feet, so good drainage matters way more than how often you water.
Soil
It's not picky and takes clay, loam, or sand, though a moist, humusy, well-drained mix suits it best. The pH window is nice and wide, from 5.5 to 8.0, which means most garden soil works as is, no fussing required.
Temperature
It's both cold-hardy and heat-tolerant, handling anything from -9°F to 100°F (-23°C to 38°C). That's a huge range, covering loads of climates, which is a big reason you find this shrub almost everywhere.
Humidity
Plain old outdoor humidity is totally fine, so there's nothing to fuss over there. What really counts is airflow around the leaves, because still, damp air is exactly what lets scale and powdery mildew move in.
Feeding
A light touch is all it wants. Mix in a balanced general-purpose shrub fertilizer once in early spring and call it done, since piling on food just pushes soft growth that pests love.
Pruning
Hardly any shrub takes a shearing as well as this one does. Clip it to shape in late spring after the new growth flushes, and snip out any scale-infested or diseased branches the second you notice them.
Repotting
In a pot it barely ever needs sizing up. Only repot when roots start circling, water runs straight through, or growth stalls, since it's slow to outgrow its space anyway.
Size & spacing
Left alone it gets to 10 to 15 feet (3 to 4.5 m) tall and spreads 5 to 8 feet (152 to 244 cm) wide. Give a hedge that much room, or just shear it down and plant a little closer for a tighter wall of green.
When to plant
This is a four-season evergreen, not a seasonal crop, so there's no sowing window you've got to time. Just set new plants out in spring or fall while the soil's still easy to work, and they'll settle in over the cool, damp weeks before the summer heat shows up.
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 greenish-white flowers in late spring to early summer (June)
Hardiness
USDA hardiness zones: 6–9
Temperature: down to -23°C
Troubleshooting
Most euonymus trouble pops up on the leaves, and the worst of it usually comes down to crowded, stuffy air. Catch scale and mildew early and they stay pretty easy to deal with. Find what matches below, then jump on it before it works through the whole hedge.
Crusty scales speckling the leaves and stems
Seeing crusty bumps and yellowing, dropping leaves? That's euonymus scale, an armored bug that taps into the tissue and quietly drinks the sap. Flip a leaf and check the stems, and you'll find skinny white males and dark oystershell-shaped females crowded together. Snip off the worst branches, then give the orange crawlers a good soak of horticultural oil as they show up in late winter or spring.
Fix:
- Hand-scrape or prune out lightly to heavily infested branches and discard them
- Apply horticultural oil with thorough coverage timed to crawler emergence in late winter or spring
- Use a soil-applied systemic such as dinotefuran once in spring for heavy infestations
- Conserve natural enemies such as predatory beetles (Chilocorus species) and parasitic wasps
Knobby corky lumps at the base and on stems
Those lumpy, tumor-like swellings down at the crown are crown gall, a soil bacterium that sneaks in through a wound and slowly throttles the stem until the leaves yellow and branches give up. Once a stem is galled, there's no fixing it, sadly. Cut the affected stems off below the swelling, wipe your tools with rubbing alcohol between cuts so you don't spread it, and don't pop another susceptible shrub in that spot for a few years.
Fix:
- Prune affected stems below the galls and sterilize tools with rubbing alcohol between cuts
- Destroy severely infected plants
- Avoid replanting susceptible species in contaminated soil for 2 to 3 years
Dusty white coating on top of the leaves
If a flat white-gray dust wipes off the top of the leaves, that's powdery mildew, a fungus that crinkles and scars the young growth. It thrives in shade and still, damp air, so the fix is mostly giving the shrub more sun and a bit more space to breathe. Rake up the dropped leaves, keep the hose off the foliage, and only grab a labeled fungicide if it really won't quit.
Fix:
- Prune out diseased branches and remove fallen leaves
- Improve air circulation with proper spacing and plant in sunny areas
- Avoid overhead watering
- Apply a labeled fungicide such as myclobutanil, propiconazole, sulfur, or horticultural oil, rotating products to prevent resistance
Curled new shoots that feel sticky
Little soft-bodied bugs bunched up on the new shoots are just aphids, and that sticky honeydew they leave behind can go on to grow sooty mold. The good thing is they knock off easily, so hit them with a strong spray of water first. Then treat any stragglers with insecticidal soap or horticultural oil, and ease up on the nitrogen, since all that soft, lush growth is basically an aphid invitation.
Fix:
- Dislodge aphids with a strong spray of water
- Apply insecticidal soap or horticultural oil to affected growth
- Conserve beneficial predators such as lady beetles
Toxicity
It's best to treat this shrub as a look-don't-eat plant around pets and little kids. The leaves, bark, and bright fruit carry alkaloids and cardiac glycosides that upset the stomach and, in bigger amounts, can throw off the heart rhythm. Nothing on it is food, so keep dropped berries and prunings cleaned up wherever pets and kids hang out.
Toxic to
Cats · Dogs · Horses · Rabbits · Livestock · Birds · People
Cats Toxic
If a cat chews on the leaves or fruit, you'll usually see drooling and vomiting, with diarrhea and a tender tummy not far behind. Eat a bigger helping and it reaches the heart, where the cardiac glycosides can mess with the rhythm and cause collapse, so don't wait around.
Dogs Toxic
Most dogs start throwing up and drooling, with diarrhea too, within a few hours of swallowing the foliage or seeds. Eat enough and the same heart-rhythm trouble can kick in, so it's smarter to call a vet than to sit tight.
Horses Toxic
A horse that grazes the leaves or bark tends to go colicky and dull, with loose manure and a bit of weakness. Since the cardiac glycosides go to work on the heart, even a quick nibble of the hedge is worth catching early.
Rabbits Toxic
For a rabbit, the alkaloids and glycosides make the whole shrub off-limits. Even a few leaves can trigger diarrhea and a fast, scary decline, so it's best to keep them away from the plant completely.
Livestock Toxic
Cattle, sheep, and goats that nibble the foliage can end up with digestive upset and those same heart effects. Fence the shrub off from the pasture, and don't chuck prunings anywhere the animals can get to them.
Birds Toxic
That fruit looks like a snack, doesn't it? But the seeds hold the toxins, and pet birds especially can wind up with gut upset and heart trouble from a taste, so sweep dropped berries out of any aviary or run.
People Caution
None of this shrub is food, plain and simple. A kid who eats the bright fruit can get vomiting and diarrhea, and a big amount risks heart-rhythm trouble, so plant it somewhere little hands can't reach the berries.
Keep fallen fruit, seeds, and prunings away from pets and children; wash hands after pruning.
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 of the named forms come down to leaf color and size, from gold-edged uprights to teeny box-leaf dwarfs. Here are the ones you're most likely to bump into.
'Aureomarginatus'
It's a favorite variegated one, with green leaves rimmed in bright golden-yellow edges.
'Microphyllus'
This little box-leaf dwarf has small leaves and a tight, compact shape, so it edges a bed much like boxwood does.
'Microphyllus Variegatus'
It's a small-leaved dwarf with that same fine texture, just dressed up in white-variegated foliage.
'Green Spire'
This one grows tall and columnar, covered in dense, glossy dark green leaves.
How to propagate
Making more of this shrub is no trouble at all, and cuttings beat seed both for speed and for keeping a variegated form looking like its parent.
Stem cuttingsEasy
Summer using semi-hardwood cuttings · Several weeks to a few months to root
Want more of these? Cuttings are the easy and reliable way to go. Take semi-hardwood cuttings in summer and they root nicely, though they're in no rush, taking anywhere from several weeks to a few months to settle in. Each one turns into a copy of the parent, which is handy if you want a variegated form to stay true.
SeedModerate
Sow ripe seed after cleaning the fleshy fruit · Slower and more variable than cuttings
Sure, you can grow it from seed, but honestly, hardly anyone does. Clean the fleshy fruit off the ripe seed before sowing, then brace for slower, more uneven results than cuttings give you, and there's no promise a variegated parent will come true.
Myths
Evergreen euonymus is the same plant as the invasive wintercreeper.
Nope, they're two different species. Evergreen euonymus (Euonymus japonicus) grows as an upright shrub, while wintercreeper (Euonymus fortunei) is a climbing groundcover vine that's gone invasive across much of the eastern United States. They share a genus, not a habit, so don't write one off just because of the other when you're deciding what to plant.
Sources
- NC State Extension Gardener Plant Toolbox
- Missouri Botanical Garden Plant Finder
- Clemson Cooperative Extension Home & Garden Information Center
- NC State Extension Publications
- UC IPM (University of California Agriculture and Natural Resources)
- Pet Poison Helpline
- USDA / University-sponsored Invasive.org (Center for Invasive Species and Ecosystem Health)