Quick answer

Plant daffodil bulbs in the UK in September or October, with cooled soil settling the exact date: we would go October in the south, September in the north. Daffodils go in far earlier than tulips because they root in autumn, but bulbs pushed into hot, wet ground rot. Later plantings often still flower, though the RHS warns performance declines after mid-November.

The short answer to when to plant daffodil bulbs in the UK is September or October, a month or two ahead of tulips. That trips people who have absorbed the rule about waiting for cold soil, so it is worth saying plainly: the rule belongs to tulips alone. Our tulip planting guide holds those back until November because cold soil suppresses tulip fire. Daffodils have the opposite problem. They need autumn in the ground to make roots, and what they rot in is warmth.

Table of contents

The signals that say your soil is ready

A daffodil bulb has one job between now and midwinter, which is to grow roots. Each check below tests whether your ground will let it.

Soil that has lost its summer heat

Push a trowel in to about 15cm and hold the back of your hand against the soil at the bottom of the hole. The top few centimetres cool weeks before the layer a bulb actually sits in, so the reading that matters is down there. Cool and slightly damp against your knuckles is what you want. Warm and clammy means wait.

The reason is a soil fungus rather than tradition. Narcissus basal rot, Fusarium oxysporum f. sp. narcissi, is the most serious disease of daffodil bulbs and it is favoured by heat: work by Taylor and colleagues, published in Frontiers in Microbiology in 2019, gives 8 to 10C as the minimum for spore germination and growth, with an infection optimum of 29C. The Daffodil Society, writing for growers who lift and store their stock, puts planting in late September or early October when soil temperatures are lower on its list of basal rot controls, and describes the disease as growing in intensity as a result of hotter summers. Garden bulbs are at less risk than a grower's replanting stock, but the direction of the advice is the same. September is the right answer with a condition attached, and in a hot, dry first half of the month the condition has not been met.

The summer bed has emptied itself

You can read the same thing off the garden without touching the soil. Once the courgettes have given up and the border shows more bare earth than leaf, the ground below has cooled with the shortening days. The first proper autumn rain after a dry August is the other marker worth waiting for, because it drops soil temperature quickly and makes digging possible on clay that had set like a path. Ignore a single cold night in early September: that tells you about the air, and bulbs live in the soil.

What the bulbs in the bag are telling you

A good bulb is firm and heavy for its size, like a small onion, and a missing papery tunic is cosmetic. The RHS is blunt about the rest: discard bulbs that are soft or show signs of rot. Turn each one over and look at the base plate, because a chocolate brown rot spreading up from it, sometimes with a pinkish-white fungus between the scales, is basal rot. That bulb goes in household waste, not the compost heap.

Then look at the size and count the noses. Most UK suppliers grade daffodil bulbs by circumference in centimetres, and the bigger grades tend to carry more than one growing point, or nose. Each nose can produce its own flower stem, though not all of them do in the first spring. Farmer Gracy puts the principle plainly: bigger bulbs will give you multiple flower stems while smaller bulbs will give you just one. Specialist growers also use a double-nose grading, where the top grade carries two or three noses and a single-nosed round carries one. Buy the largest grade for a display next April, rounds by the hundred for naturalising.

A two-hour test that decides ground or pot

Dig a hole a spade deep where you intend to plant, fill it with water, let that drain away, then fill it a second time and come back two hours later. The second fill is the one that counts: dry, cracked September clay swallows a first fill straight through the cracks, then seals as it rehydrates, so a single fill passes the exact ground this test exists to catch. If the second fill has drained, plant there. If water is still standing, treat the spot as suspect rather than committing bulbs to it, because the RHS asks for fertile, well-drained soil in sun and warns off waterlogged ground and deep shade. Daffodils are more forgiving of wet than tulips, but more forgiving is not fine: use a container or a gritted raised bed.

Where the bulbs are going changes the date and what you commit to

Everything above assumes a border. Three other situations change the date or what you are committing to afterwards.

Borders and beds

The standard case, and the one the September answer is written for. Depth is where good sources part company: the RHS gives three times the height of the bulb, Gardeners' World says about 10cm, and Crocus suggests 15 to 20cm. Most of that gap is the sources assuming different bulb sizes rather than disagreeing about the rule: Crocus and the RHS both work to two or three times the bulb's height, and Gardeners' World to about twice. Measure your own bulb and the numbers converge. We would work to three times the bulb's height and err deep, because the RHS says outright that shallow planting tends to weaken bulbs. One exception: on heavy clay Crocus advises going slightly shallower, around 10 to 15cm, and putting sharp sand in the base of the hole, because a deep hole in clay is a sump. Space them at least twice the bulb's width apart, in groups of at least six.

Naturalised in grass, and the mowing you are signing up for

Bulbs in turf go in at the same depth, but the calendar shifts at both ends, and the front end is a genuine disagreement. Sarah Raven plants in grass in late autumn, after the last mow of the year, which stops you slicing the tops off emerging noses with a mower you had forgotten about. We would go earlier, in October, so the turf plugs knit back while the grass is still growing, and mark the area instead. Either way the constraint that decides whether to do this at all comes in spring: the RHS asks for at least six weeks after flowering before mowing, and ideally for waiting until the foliage goes yellow and straw-like. Gardeners' World is more concrete about a British spring, warning that you might not be able to cut the grass until June.

A naturalised patch therefore drops out of the normal lawn calendar for most of spring, which matters if you planned to scarify, feed and overseed in the usual order. Decide that in September, not in May. The compromise worth knowing is Farmer Gracy's: plant clumps you can mow around rather than scattering bulbs evenly across a lawn. On rough grass, where that does not matter, the RHS method is to scatter them and plant where they fall.

Cultivar choice follows grass height. The RHS puts crocus, small narcissus such as the cyclamineus hybrids 'February Gold', 'Peeping Tom' and 'Tete-a-Tete', and Narcissus bulbocodium in short grass, and the big trumpet and large-cupped hybrids such as 'Carlton', 'Ice Follies' and 'Mount Hood' in longer grass. One caveat on that list: 'Carlton' is among the cultivars susceptible to basal rot, and naturalised turf is the one planting you cannot rotate out of, so on ground with any history of the disease pick from the rest.

Containers

Pots follow the same window. Depth depends on how long the pot is standing: the RHS gives three parts peat-free multi-purpose compost to one part grit, with bulbs at three times their depth and one bulb width apart, and for a temporary one-season display it says you can plant less deeply and pack them closer, then replant them deeper in the garden afterwards. For pots left down for years the RHS switches to John Innes No 2 with grit, and Gardeners' World likewise suggests a peat-free John Innes No. 2 or 3. The grit matters more than the brand, because sodden compost rots bulbs faster than a wet border does. Stand pots on feet, clear of downpipes, and remember a container freezes from every side at once.

Indoor bulbs run on a different clock

A common confusion: bulbs sold for Christmas flowering indoors are not garden daffodils, and nothing above applies to them. The RHS lists prepared hyacinths, Narcissus 'Paper White' and Hippeastrum for indoor displays; of those only the paperwhites are a narcissus, so they are the ones this guide covers. Paperwhites need no cold, dark period at all. Water well, leave them on a warm, sunny windowsill, and good bulbs flower in six to ten weeks. Count back from the date you want them: for flowers at Christmas that means potting between mid-October and the first week of November, not in September. It does not work in reverse: garden daffodils on a windowsill will not give you Christmas flowers, and paperwhites are not hardy in most of the UK, so the RHS advice after flowering is to dry them off and store them.

Month by month, from late summer to midwinter

One adjustment rule first. Northern and inland gardens reach cool planting conditions before mild south-western and coastal ones, and any two seasons differ by a fortnight either way. Two to three weeks is the usual spread across the country, so Scotland and the north can work at the early end of every window below, while Cornwall, Pembrokeshire and warm city gardens should read every date as the later option.

August

Buying, not planting. Stock is complete and the interesting cultivars are still on the shelf. Keep bulbs cool, dark and airy in a labelled paper bag rather than sealed plastic. If you want paperwhites for Christmas, order them now and pot them in late October.

September

The main month. The RHS says to plant daffodil bulbs in early autumn, ideally September, and its general bulb advice asks for daffodils, crocus and hyacinths preferably by the end of it; Crocus goes earlier still, ideally no later than mid-September. Run the hand test before you act on any of that: losing a fortnight to a warm spell costs very little. Indoors, order paperwhites now but do not pot them yet.

October

In most southern gardens this is the month we would choose. The soil has cooled and is usually workable, the Daffodil Society's late September to early October recommendation lands here, and there is ample time for roots before hard frost. It is also the month we would pick for turf work, while the grass still closes over the plugs you cut. Indoors, late October is when paperwhites go into their bowls if you want them flowering at Christmas.

November

The first half of the month is still a normal planting slot rather than a rescue: Gardeners' World gives the window as September to November, though the RHS puts the point where performance starts to decline rapidly at mid-November. This is also when tulips go in, so if you are doing both, early November is the overlap and any daffodils left in the bag go in alongside them.

December and January

Later than ideal and still worth doing. Crocus says you can plant until January as long as the ground is workable, and Gardeners' World notes that late planting means the bulbs take longer to establish and flower. Be honest about the cost: the RHS lists planting time among the causes of blindness, and puts the point where performance starts to decline rapidly at mid-November. Expect some to come up blind in their first spring and flower properly the year after. Frozen ground and a sodden bed are the only real blocks, and both have the same answer: deep pots of gritty compost, stood somewhere sheltered.

February and later

By February a dry bulb is running on what is left in it. Plant it anyway rather than binning it, since the RHS advice for delayed planting is to get bulbs into the ground or potted up as soon as you can. Expect leaves this year and flowers next. For flowers this spring, buy them growing in pots, which the RHS suggests planting before they come into flower.

Getting them in the ground, step by step

1. Check the soil, then pick a dry day

Cool and damp at 15cm, the depth the bulb will sit at, is right. Warm and clammy means wait. Then choose a day when the soil crumbles off the trowel rather than smearing, because a bulb set into smeared clay sits in a sealed pocket.

2. Clear the ground and break up the top spit

Fork the top 20cm so the bulbs sit in loose soil rather than on a pan, working a couple of handfuls of horticultural grit into each hole on clay. Skip fresh manure and high-nitrogen feed: the Daffodil Society lists avoiding both as part of controlling basal rot.

3. Set the depth before you set the bulb

Dig the hole, check it against the bulb, then plant. Three times the height of the bulb puts a standard trumpet daffodil under roughly 10 to 15cm of soil. Deep is the safer error, because shallow bulbs are the ones that split into non-flowering offsets and flop in the first March gale.

4. Space them for a clump, not a line

Allow at least twice the width of the bulb between neighbours, roughly 7 to 10cm in a border, and plant in groups of at least six. In a pot, close that to one bulb width, or tighter still for a one-season display. A row of single bulbs along a path edge never looks right and congests fastest.

5. In turf, cut a plug and put the core back

On rough grass, scatter the bulbs and plant them where they fall; on a lawn you still intend to mow, mark out clumps you can mow around instead. Cut a plug, crumble the soil out of the bottom of the core, drop the bulb in nose up, then push the core back and tread it level. For hundreds of plugs a long-handled bulb planter saves your knees, though we scored that one 4.3 out of 5 and it is the wrong buy for light, cultivated soil or for a couple of dozen bulbs a year. If your clay has gone hard, the answer is not a heavier tool. It is waiting for rain.

6. Backfill, firm out the air pockets and mark the spot

In a border, firm with the flat of your hand so no cavity is left under the base plate, where water collects and rot starts, but do not stamp it. Treading a turf plug back level, as in step 5, is a different thing and is fine. Push a label in or photograph the bed: the fastest way to lose a hundred daffodils is to plant something else on top of them in March.

7. Water once if the ground is dust dry, then leave it

A September bed after a dry spell can be powder down to spade depth, and roots will not start in that, so give it one thorough soak. Then leave it. Autumn rain does the rest, and permanently wet ground is what kills them.

What goes wrong, and how to recover

Basal rot

Foliage dies back early, and a bulb lifted and cut open is soft or mummified with a chocolate brown rot spreading up from the base plate. There is no saving it, and the RHS confirms there are no chemical controls available. Contain it instead: lift affected bulbs whole into household waste, and do not replant daffodils there. The RHS advises rotating sites and not replanting where infection has occurred, and the Daffodil Society puts spore survival in soil at over ten years. Cultivar choice helps at the margins, since Narcissus tazetta cultivars are resistant while the common 'Carlton' and 'Golden Harvest' are susceptible.

Narcissus bulb fly

A clump that flowered well last year comes up as a tuft of thin grassy leaves, or not at all, and a bulb dug up has had its centre eaten out by a plump, creamy white maggot up to 18mm long. That is Merodon equestris. The RHS says eggs are usually laid on the neck of the bulb and the hatched maggot crawls down and enters through the base plate, with adults about from mid-May to June. Note that the control is a spring job, not a planting-day one: firm the soil around the plants after flowering, making it harder for females to lay, and cover valuable new plantings with insect-proof mesh through mid-May and June. There is no chemical answer, as the Daffodil Society states plainly.

Leaves but no flowers

Rule out the calendar first: if these bulbs went in after mid-November, a blind first spring is a known risk rather than a fault, and the answer is to leave them alone and judge them next year. Beyond the calendar, blindness has several causes and most are fixable. Gardeners' World names poor soil, overcrowding and shade. The RHS adds shallow planting, a dry site, and leaves that are cut down or knotted too early. Congestion is the commonest in an established garden, and the fix is to lift and divide in autumn, then replant at proper depth in improved soil. If you suspect depth, dig one bulb up and measure.

Cut down too soon

The one purely self-inflicted failure. Leaves removed, knotted or mown while still green stop feeding the bulb, and next spring's flower is what pays for it. The RHS asks for at least six weeks after flowering before anything is cut, and ideally for waiting until the foliage has gone yellow and straw-like, which in a British spring can mean June. That season is gone, but the bulb is not: feed after flowering, leave the foliage alone next year, and most clumps recover within two springs.

Handling the bulbs safely, and what to do if someone swallows one

If someone has swallowed part of a daffodil

Call 999 or go to A&E. Do not wait to see whether they are sick, do not try to make them sick, and do not give them anything to eat or drink.

Daffodil bulbs are toxic, which is worth a paragraph because autumn is when a bag of them sits around the house. In 2015 Public Health England wrote to supermarkets in a letter titled Steps to avoid daffodil poisonings this spring, noting that there are rare occasions when the bulbs are mistaken for onions, and the stems or leaves are mistaken for a type of vegetable popular in China, and asking that daffodils be displayed well away from the produce or fruit and vegetable area.

Rare is the right word, and the documented UK cases are worth stating accurately rather than dramatically. The best documented cluster, investigated in Bristol in February 2012, was eleven people who cooked pre-bloom daffodil stalks bought beside the vegetables; all eleven vomited and most were nauseous within twelve hours, with no hospital admissions and no deaths. The clearest bulb-for-onion case is a Suffolk primary school, where a bulb dug from the school vegetable garden went into a soup the children were making with their own onions, and twelve pupils went to hospital as a precaution. Rare does not mean wait and see: if it happens, act on the instruction at the top of this section.

So keep bulbs out of the kitchen and the vegetable rack, in a labelled bag, and do not sort them on the same bench as onions or shallots. Gloves are worth wearing, because the calcium oxalate in the sap causes the irritant contact dermatitis bulb handlers call daffodil itch. The instruction at the top of this section is the NHS one. The NHS says to call 999 or go to A&E if you think you, a child, or someone else may have swallowed, touched or breathed in something harmful, and to call 111 if you are not sure whether what was swallowed is harmful. It also says do not try to make someone sick, and do not give them anything to eat or drink.

Frequently asked questions

Is it too late to plant daffodil bulbs in November?

No, and especially not in the first half of the month. Gardeners' World puts the daffodil planting period at September to November, though the RHS puts the point where performance starts to decline rapidly at mid-November. Expect flowers slightly later than an early-autumn planting in the same bed, and get them in sooner rather than later.

Can I plant daffodil bulbs in December or January?

Often, but the odds drop. Crocus advises you can plant until January as long as the ground is workable, and a Gardens Illustrated poll of its readers on Twitter found 39 per cent had planted as late as January and still had them flower. Against that, the RHS lists planting time among the causes of daffodil blindness, saying bulb performance can rapidly decline if bulbs are planted later than mid-November. So plant them rather than bin them, but expect later and sometimes shorter flowers, and expect more of them to come up blind in the first spring than an autumn planting would.

How deep should daffodil bulbs go?

Three times the height of the bulb, which puts most trumpet daffodils under about 10 to 15cm of soil. Published centimetre figures range from about 10cm to 20cm, mostly because sources assume different bulb sizes, and deep is the safer error: shallow planting weakens bulbs and produces blind, floppy clumps.

When can I mow grass that has daffodils in it?

Not until the foliage has finished feeding the bulb. The RHS says to leave at least six weeks after flowering before mowing, and ideally to wait until the foliage goes yellow and straw-like, which can mean June. If that is unacceptable on your main lawn, plant clumps you can mow around.

Why do daffodils go in before tulips?

Because daffodils root in autumn and tulips are held back for disease reasons. Daffodils want time in cooling, moist soil to make roots before winter, which is why the RHS asks for them preferably by the end of September. Tulips wait for November, when cold soil suppresses tulip fire.

Are daffodil bulbs poisonous?

Yes. If someone swallows part of a daffodil, call 999 or take them straight to hospital, do not try to make them sick, and do not give them anything to eat or drink. Public Health England wrote to supermarkets in 2015 asking them to keep daffodils away from the fruit and vegetable aisles, noting that there are rare occasions when the bulbs are mistaken for onions. Store them somewhere nobody would look for food.