What a daphne shrub is
A daphne is a shrub grown for flowers whose scent carries far past the plant, and in the kind most people buy they open in midwinter. The genus runs to between 70 and 95 species, deciduous and evergreen, and takes its name from the Ancient Greek word for laurel. Winter daphne, Daphne odora, is the broadleaf evergreen behind the reputation: 3 to 6.5 feet tall and 2 to 4 feet wide, native to southern China, Vietnam and Taiwan. Its pink, lavender or white flowers open in mid to late winter, ahead of the glossy leaves, in clusters up to an inch across.
Several other daphnes are grown in the United States and they are not interchangeable. Daphne x burkwoodii is the hybrid behind 'Carol Mackie', whose narrow leaves are edged in gold to creamy white and stay fresh all season. February daphne, Daphne mezereum, is deciduous, its very fragrant lilac to rose-purple or white flowers opening before the leaves. Garland daphne, Daphne cneorum, trails and roots wherever its stems rest on soil, so what reads as legginess is its habit.
Is daphne really hard to grow?
The reputation is real. Daphnes are finicky, and the advice is to be sure you can meet their requirements before buying one; they are also hard to establish. Michael Dirr wrote that these shrubs sometimes die very quickly for no explicable reason. The failures are less mysterious than that sounds. Two things a daphne will not forgive are too much water and herbicide. Both deaths are settled in the first hour: where the hole was dug, and whether the root ball came out of the pot whole.
Most of the remaining confusion sits on one word. Excellent drainage is the requirement gardeners hear, and it gets read as dry, but a well drained soil left short of water kills a daphne as surely as a soggy one. The soil has to drain freely and still hold moisture, with plenty of organic matter, tolerating neither drought nor waterlogging. Keep it moist and let it dry out between waterings. Soil pH is less of a trap than it looks: daphnes thrive in the acidic soil of the Pacific Northwest.
Daphne sudden death, and what is actually rotting
A daphne that collapses suddenly is failing at the roots, and the top is the last part to show it. Above ground: wilting foliage and flowers, or a whole plant gone over, with dark brown to black, water-soaked lesions on the stem at the soil line. Sudden total collapse in an established shrub means root or crown rot, and the plant can be dead within about two weeks. The slow version takes years: yellowing blamed on winter exposure, decline over two seasons, and dead feeder roots with yellow flaking on the main root skin once the soil is pulled back. The disease needs cool, wet or waterlogged soil, and a slope gives no protection if the ground stays wet.
The name for it is daphne sudden death syndrome, coined for a previously undescribed fungal disease on Daphne cneorum at British Columbia nurseries. Thielaviopsis basicola came out of every diseased plant and none of the healthy ones. Phytophthora is named as the cause of daphne root rot. The two do not cancel out: Phytophthora and Pythium account for most root rot in ornamentals, and black root rot, the group Thielaviopsis belongs to, turns up in daphne samples as well.
Once it is running there is no cure: root and crown rot cannot be treated, so the plant comes out, and a replacement daphne goes to a different part of the garden, because fungal spores persist in the soil. The decision that matters was made before planting, in soil that sheds water fast in every season, including through the wet winter that makes the cool, waterlogged ground the rot needs.
The other way a daphne dies: the root ball
The second failure is mechanical, and it happens in the planting hole. Care in planting is essential so the root ball stays intact, and a daphne whose root ball falls apart will most likely fail. The practical form of that rule is to disturb nothing. The ball goes into the ground the way it came out of the pot, and a plant in a peat pot can go in pot and all. Daphnes are hard to establish, so a ball that came apart shows up as a death a season later, on a shrub that never rooted into the soil around it.
Whether an established daphne can be moved at all is disputed. NC State says flatly that daphnes will not survive transplanting, so the site is chosen carefully the first time. The softer position is that daphnes resent disturbance, so a move is held until fall as growth slows, while spring and summer moves are much harder. Both sides put the outcome on the root ball. Nobody gives a survival rate for a moved daphne, so treat the planting site as permanent.
Working out why a daphne is dying
Fastest checks first: a collapse over days and a decline over two years point at different things.
What yellow leaves mean
Yellow leaves have several ordinary explanations that come before root rot, and the pattern on the leaf picks the one you are looking at. The causes are over- or under-watering, a nutrient shortage, a soil pH problem, a pathogen, or natural die-off. Leaves that go yellow while their veins stay green are showing iron chlorosis, which means iron is not being taken up. Yellowing that takes the oldest leaves first points to nitrogen, and a soil test reads pH and nutrient levels before anything gets applied. In a container the odds shift to the mix, since daphne dislikes soggy soil and wants it moist without being wet.
Work through those first, because rot yellowing rarely travels alone: Phytophthora root rot brings other symptoms with the color change, wilting or leaf spots among them. Winter muddies the picture too, since winter burn weakens a daphne and opens it to botrytis, leaf spots, twig blight, canker and crown rot. If the yellowing spreads while the shrub wilts, look at the roots.
Where to plant a daphne
Plant it where water leaves fast and the light runs at least half the day. Full sun means six or more hours of direct light, partial shade two to six, and winter daphne grows in sun while doing best in partial shade. The burkwoodii hybrids want protection from hot afternoon sun and cold wind. Where the ground is heavy clay the answer is height: a raised bed or a raised planting. All of that is done before the plant goes in, since the site cannot be improved later without disturbing the roots.
Shelter matters as much as light for the evergreen kinds. Winter daphne is hardy only to about 10 degrees Fahrenheit, so at the cold edge of its range it wants shelter from winter wind. Flowers open in mid to late winter, when nobody walks to the back of a border, so the shrub earns its keep beside a door or a path, in company with a camellia. What the spot cannot have is water that sits: a downspout outfall, a low corner or the throw of an irrigated lawn puts the roots in the soil that starts the rot.
Planting it, and then leaving it alone
Dig the hole as deep as the root ball and wider than it, and set the shrub, its ball unbroken, at the level it stood in the container. Any deeper and the crown sits in the wettest part of the hole. Water it through the first season, keeping the soil moist without letting it turn soggy. What it does not want is a rich, wet backfill packed around the crown, where sitting moisture favors the rot.
After that the work is mostly restraint. The burkwoodii hybrids are slow to establish and best left undisturbed once planted. A shrub that seems to do nothing for a season is often just being itself. 'Carol Mackie' can be slow to leaf out in spring, and two plants set side by side may leaf out weeks apart. Keep herbicide out of the root zone: overspray or leaching from a nearby spray will damage the plant.
Hardiness by species and hybrid
Zone ratings conflict because they are rating different plants. 'Carol Mackie' alone collects three ranges.
Daphne varieties sold in American gardens
A handful of names covers most of what is on offer, and they are not versions of one plant.
How poisonous a daphne is
Daphne is poisonous at the severe end of what people plant beside a door. Winter daphne is a high severity poison, with bark, flowers, fruit, leaves, roots, seeds and stems all toxic. February daphne carries the same rating, and all of it is highly toxic and possibly fatal if eaten. The effects run from swelling of the lips and tongue to internal bleeding, weakness and coma. The fruit is the specific danger, small, colored and easy to pick, and the drupes are poisonous to mammals, humans and their pets included. Eating 10 to 12 berries of Caucasian daphne can be fatal, with ulceration of the mouth, vomiting and seizures among the effects.
Handling carries a smaller risk. Winter daphne causes contact dermatitis, and leaves rubbed against skin can raise blisters, so pruning, tidying and clearing fallen fruit are jobs for gloves and a long sleeved shirt. That shapes siting as much as drainage does: a shrub set beside a door for its winter scent is also within reach of a toddler. Daphne carries poisoning tags for dogs, for cats and for children specifically, and Pet Poison Helpline names it toxic to dogs. Keep every part of it away from children and pets.
The scent, and which daphnes carry it
The scent gets described by comparison: lemony, close to southern magnolia, close to Osmanthus fragrans. Winter daphne is the most fragrant of them, and it earns its space in gardens where nothing else about it is easy. The flowers open in the depth of winter, when almost nothing else competes, so a shrub that would go unnoticed in June holds a whole doorway. Daphne trades on timing the way a gardenia does on a southern porch, with the seasons reversed. Cutting a sprig has a price, because the standing advice for this genus is not to cut daphnes at all.
How long it lasts depends on which plant was bought. The transatlantica hybrids were bred for a longer season, so 'Eternal Fragrance' blooms mainly in spring and keeps going into fall, and 'Jim's Pride' runs spring through fall. The winter species spends everything in one cold spell. Fragrance across seasons takes two of these plants, which doubles the drainage problem.
Pruning, and the argument about it
Prune a daphne very little. One position is not to prune at all, since cutting often results in die-back, and on 'Carol Mackie' nothing is allowed beyond removing dead branches. Behind that sits the habit: daphnes grow slowly, so pruning is rarely necessary except on damaged or dead stems, and the real decision is choosing a plant that will not outgrow its space. Against that runs a genuine disagreement: tradition held that daphnes should never be pruned, while many experts now recommend hard pruning of many types, and of 'Carol Mackie' in particular. That side comes with a method: treat the plant like a forsythia, removing up to a quarter of the old growth each year once mature.
Where a cut is made, three limits hold. Never take more than a third of the living plant in one year, and keep the work away from late season, when new wood has too little time to harden before winter. Work slowly: the bark on 'Carol Mackie' tears easily, and heavy snow damages that same plant, breaking branches or splitting it open. Garland daphne is the exception, since cutting it back after bloom keeps it compact.
Feeding and mulch
A daphne needs very little feeding, since average soil fertility suits it. The whole program is a yearly top dressing of compost in spring, or a complete fertilizer at the label rate, with overfertilizing a risk of its own. Where a feed is applied, the timing is spring, before new growth, with a second application after the flowers fade. Mulch works at the same low intensity: organic matter over the root zone to hold moisture steady, which matters most on free draining sandy soil, since daphnes will not tolerate drying out.
Growing a daphne in a pot
A pot is the workaround where the ground stays wet or the winter runs colder than the plant takes. Winter daphne grows in containers overwintered in a greenhouse or on a cool sunporch, which protects it where it is not reliably hardy outdoors. The container still has to solve the problem a bed does. The species is adaptable about soil type and unforgiving about drainage, so the mix drains fast and the pot never sits in standing water, since daphne dislikes soggy soil. Feeding changes too, since nutrients wash out of pots easily, which puts a potted daphne on a light regular schedule.
Pests and the other diseases
Pests are rarely what kills a daphne. The genus has no significant pest issues, and the main complaint is wilting and browning, or a general yellowing of the leaves. The insects that do turn up are aphids, mealybugs, scale and spider mites, with overwatering beside them as a cause of root rot and leaf spot. Two are identifiable without a hand lens. Mealybugs are 1/5 to 1/3 inch long, oval and flattened under a white waxy powder. Scale sits along stems under hard rounded shells 1/10 to 2/5 inch across, white, yellow, or brown to black.
The list of possible diseases runs longer than what usually happens: botrytis, leaf spots, canker, twig blight, crown rot, root rot and virus on winter daphne. Twig blight is the one worth recognizing, a fungal blight from the Northeast to the Pacific Northwest that browns branch tips and kills them back, though shrubs over 5 years old are usually spared. A daphne carrying insects has a problem you can work on, while a daphne that collapses is being killed underground.
What goes wrong most often
In rough order of how often each one comes up.
Symptoms: a healthy looking shrub wilts and goes over, dead within about two weeks. Cause: root or crown rot at the base. Fix: nothing saves it; take the plant out and put any replacement in a different part of the garden, since spores persist in soil.
Symptoms: the oldest leaves yellow first, or blades go yellow with green veins. Cause: the pattern names it. Fix: oldest leaves first calls for a soil test and points at nitrogen; green veins mean iron is not being taken up.
Symptoms: a shrub that never took hold and failed a season after going in. Cause: a root ball that came apart on the way in. Fix: plant it in one piece, and treat an established shrub as fixed where it stands.
Symptoms: an established plant in full leaf that sets few flowers. Cause: usually time, since daphnes are hard to establish. Fix: leave it alone.
Symptoms: yellowing after a cold spell, blamed on winter exposure and found two years later to be dead feeder roots. Cause: winter injury opens the plant to botrytis, leaf spots, twig blight, canker and crown rot. Fix: watch a bad winter into the following season.
Symptoms: a new shrub that puts on almost nothing, or one plant leafing out long after the one beside it. Cause: normal for a slow shrub. Fix: wait, since 'Carol Mackie' can be slow to leaf out and neighboring plants may leaf out weeks apart.
How long a daphne lives
Plan on a short life for a shrub. Winter daphne often lasts only three or four years, 'Carol Mackie' is short lived, and even in the best conditions an evergreen daphne rarely passes eight years, often dying at four. Twenty years is possible: a daphne that old producing small, incompletely developed leaves is simply aging out. All of those numbers point to the same move. Daphnes root easily from stem cuttings, so copy a plant that is doing well, and the replacement is growing before the parent goes.
Daphne beliefs that do not hold
Five things gardeners repeat about daphne, and what the plant actually does.
The myth: A daphne dies for no reason.
The reality: Two mechanisms cover most of it: soil that stays cool, wet or waterlogged, and a root ball that came apart on its way into the ground. The rest is real, since daphnes do sometimes die for no apparent reason.
The myth: There is a hardiness zone for daphne.
The reality: There are several, and they conflict for the same plant: the burkwoodii cross is rated two ways, its best known cultivar three. The number on the tag describes the plant in front of you.
The myth: The berries are only mildly poisonous.
The reality: Eating 10 to 12 berries of Caucasian daphne can be fatal, and all parts of February daphne are highly toxic and may be fatal if eaten.
The myth: An established daphne can be moved if you are careful.
The reality: That is the disputed part. One position: daphnes will not survive transplanting. The other allows a planned fall move, and calls spring and summer moves much harder.
The myth: It grows slowly, so it needs feeding.
The reality: Average soil fertility is enough, and overfertilizing is a risk in its own right. Slow growth is the habit of the genus, and also the reason pruning is rarely necessary.
What to expect, year by year
A daphne is bought for a scent that can arrive in its first winter, then judged on a clock shorter than anyone expects from a shrub.
Year one belongs to the roots. Water it through the first season, keeping the soil moist while letting it dry out between waterings, and otherwise leave it alone. Flowers can still appear that first winter on a plant bought in bud, and almost no visible growth is normal.
By the third season the plant is doing what it was bought for and still filling out. Daphnes grow slowly, and winter daphne finishes at 3 to 6.5 feet tall and 2 to 4 feet across. Heavy snow can break branches or split a mature variegated hybrid open.
From the fourth year the plant is past the shortest lifespan reported for it, so keep a rooted cutting in reserve. The failures that remain are the two settled at planting: water that does not leave the root zone, and a root system that never knitted into the soil.
FAQ
Is a daphne a flower?
Daphne is a shrub grown for its flowers. The kind most gardens own, winter daphne, is a broadleaf evergreen flowering in mid to late winter.
How tall do daphne plants grow?
It depends on the species. Winter daphne reaches 3 to 6.5 feet tall and 2 to 4 feet wide, the burkwoodii hybrid 3 to 4 feet each way, February daphne 3 to 5 feet and Caucasian daphne 4 to 5 feet.
Where is the best place to plant a daphne bush?
Where water leaves fast and people walk past. On heavy clay that means a raised bed, and the site is chosen once, since moving the shrub may kill it.
Does daphne like sun or shade?
Both, within limits. Winter daphne takes six or more hours of direct light, or partial shade, and does best in partial shade. The burkwoodii hybrids want shelter from hot afternoon sun and cold wind.
What are the common problems with daphne?
Sudden collapse from root or crown rot comes first, yellow leaves second, decline after planting or moving third. Insects sit far down the list.
Why is daphne hard to grow?
Because what it needs is settled in the first hour and cannot be corrected later. Daphnes are finicky, and will not forgive too much water or herbicide.
Why is my daphne plant dying?
A quick collapse is at the roots: sudden collapse means root or crown rot, and death follows within about two weeks. If it was planted or moved within the year, a broken root ball is the other suspect.
How do you revive a dying daphne?
Root or crown rot cannot be reversed, and any replacement goes to a different part of the garden. Where the cause is watering or nutrition, correct the moisture and test the soil before feeding.
What to do when daphne leaves turn yellow?
Read the pattern first, since the causes run from watering and nutrition to soil pH and pathogens. An evergreen shedding its oldest leaves while the tips hold theirs is normal.
What is the average lifespan of a daphne plant?
No agreed number exists. Winter daphne often lasts three or four years and rarely more than eight, though daphnes of twenty years and more do exist.
Interesting tips
- Two members of the genus are grown as a crop. Daphne bholua and Daphne papyracea, both called lokta, are harvested in Nepal and Bhutan for paper production.
- Take cuttings with a heel. In midsummer choose vigorous twig tips 4 to 7 inches long, woody where each joins the branch behind it, and strip them off with a heel of bark attached. Line rooted cuttings out in a prepared bed by the end of summer and grow them on for another year before planting out.
Related Guides & Flowers
Hellebore
The other thing flowering while the beds are bare, and a far more forgiving plant to put beside a winter path.
Snowdrop
The bulb that opens in the same cold weeks, planted under a daphne where its scent already reaches the door.
White flowers
Where the white daphnes sit among the rest, if the color scheme is what you are planting for.
Types of flowers
The full catalog of flowers on the site, sorted by kind, when you are choosing what goes in beside the shrub.
Enjoying our flower guides? Add YourFlowersGuide as a preferred source on Google. It helps more readers find us.
Add to Preferred Sources