To care for a real Christmas tree, place it at least two metres from any source of heat, in a cool room. If it is in a water-reservoir stand, give the trunk a fresh cut of 1 cm at the base and keep the reservoir full. Mist its branches and switch off the lights at night. Cared for like this, a Nordmann fir lasts 4 to 5 weeks in a heated room, a Norway spruce 2 to 3 weeks.
What should you do to keep your Christmas tree green, and how often?
A cut tree is still alive: it drinks through its trunk and loses water through its needles. Caring for it comes down to six steps, most of which take a minute.
| Step | When | Why |
|---|---|---|
| Choose the spot, at least two metres from any heating | Once, before delivery | Heat dries out the needles faster than anything else |
| Give the trunk a fresh cut of 1 cm at the base | Once, just before putting it in water (water-reservoir stand only) | The original cut has sealed over with resin |
| Check and top up the water reservoir | Every morning | A cut left dry seals over |
| Mist the branches | Every 2 or 3 days | The needles lose their water in dry air |
| Switch off and unplug the lights | Every night and whenever you go out | A tree that is drying out becomes flammable |
| Pick up the needles, check the state of the tree | Every day | A sudden drop signals a problem |
How much water does a Christmas tree drink?
A lot, especially at first. In the first few days, a cut tree drinks about 1 litre a day for every 2.5 cm of trunk diameter, according to Washington State University. A thick trunk can therefore empty a reservoir overnight. The rule does not change: keep the reservoir full; clean tap water is enough.
Water only helps if the trunk can drink it. Since it was cut, the base has sealed over with resin. With a water-reservoir stand, saw off a 1 cm slice and put the trunk in water within the hour. On our wooden cross stand, which has no reservoir, a fresh cut does nothing: a cool room and misting then slow down the drying out, without replacing water. The choice between a cross stand and a water-reservoir stand, and the step-by-step setup, are in our guide to setting up your tree.
Where should you place your tree so it lasts longer?
The spot matters more than anything else. Allow at least two metres between the tree and a radiator, a stove, a fireplace or a heating vent.
- No direct sunlight behind a large window.
- A moderately heated room suits it better than an overheated living room; turning the heating down a little at night helps it further.
- Away from the door and from where people walk: it is in nobody’s way, and its branches do not get damaged.
- If the air is very dry, a humidifier helps the tree as much as it helps you.
How long does a real Christmas tree last?
Well placed and watered, a Nordmann fir keeps its needles for 4 to 5 weeks in a heated room. The Norway spruce, more fragrant, lasts 2 to 3 weeks. For it to look its best at Christmas, have a Nordmann delivered from 27 November, a Norway spruce from 11 December. To choose between the two: our Nordmann fir or Norway spruce comparison.
Needle retention starts before care: no amount of care can save a tree cut too early. A fresh tree has supple, deep green needles, and a trunk that is still moist at the cut. Ours are selected from a Belgian family grower, about a hundred kilometres from Brussels, and we deliver them netted, freshly cut.
Why is my tree dropping its needles?
A few dry needles on the floor each day is normal, especially from inside the branches. A heavy drop of green needles, on the other hand, almost always has one of these three causes:
- thirst: the reservoir has run dry and the cut has sealed over;
- heat: a radiator, a stove or the sun too close;
- age: a tree cut too long before it was bought.
First thing to do: check the reservoir, then move the tree away from the heat and mist it. Vacuum without a rotating brush, which the needles jam.
How do you avoid fire risks with a real tree?
A well-watered tree stays supple and catches fire far less quickly than a dry one. Water and distance from heating therefore also protect your home. For the lights:
- Choose LED fairy lights, which give off almost no heat.
- Check the cables before putting them up; replace a damaged set of lights rather than repairing it.
- Do not overload a power strip and do not chain extension leads together.
- Mist with the lights switched off and unplugged, and let the tree dry before switching them back on.
On the ceiling, a smoke detector keeps watch: it has been compulsory in every Brussels home since 1 January 2025 (source: the Brussels-Capital Region).
How do you protect the tree from children and pets?
A climbing cat or a small hand pulling is enough to knock a bauble off. Choose shatterproof baubles and bauble hooks that hold each bauble to its branch. Keep the bottom of the tree for things that cannot break, and check that the cross stand is firmly tightened.
What should you do with the tree when it is past its best?
Remove all the decorations and the netting. In the Brussels-Capital Region, it is turned into compost through the garden waste collection or the Recypark. The rules and addresses are in our article what to do with your tree after the holidays.
Key points to remember
- The spot first: at least two metres from any heating, out of direct sunlight, in a cool room.
- In a water-reservoir stand: a fresh cut of 1 cm, into water within the hour, reservoir checked every morning.
- On a cross stand without water: a cool room and misting slow down the drying out.
- A Nordmann fir lasts 4 to 5 weeks, a Norway spruce 2 to 3 weeks, in a heated room.
- LED fairy lights, switched off at night, and a smoke detector on the ceiling.
