Live Christmas Tree Care: Keep a Cut Tree Fresh, Water Needs

To keep a cut Christmas tree fresh, make a new cut across the trunk base just before you set it up, put it in a stand with plenty of water right away and never let the water level fall below the base. A freshly cut tree can drink a lot, especially in the first days, so check the stand daily. Early needle drop is usually caused by a dry trunk, heat or a tree that was cut long ago.

Start with a fresh tree

How long a tree lasts depends partly on how fresh it is when you buy it. Check before you pay:

• Run a branch through your fingers. Needles should stay on with only a few falling.
• Bend a needle. A fresh needle snaps or bends and springs back; a dry one is brittle or limp.
• Lift the tree a few inches and bounce the trunk on the ground. A shower of green needles is a bad sign, though some inner brown needles are normal.
• Look for a sticky, fragrant trunk and healthy color.
• Ask when the tree was cut. A tree cut-your-own or delivered recently is usually the freshest.

Make a fresh cut and set it up

1. Cut the trunk. Saw off about half an inch to one inch (1 to 2.5 cm) straight across the base. A straight cut gives the most water-absorbing surface. Do not drill holes or cut a V shape.
2. Get it into water quickly. If the tree sits for several hours after the cut, sap can seal the base. If more than a few hours pass, make another thin cut.
3. Choose a stand that fits. A stand should hold a generous amount of water, often at least a quart per inch of trunk diameter is a common guide. Do not whittle the sides of the trunk to fit a small stand, because the outer layers take up water.
4. Fill the stand at once. Use plain tap water. Check it within a few hours.

How much water does a cut tree need?

A fresh tree can take up a lot of water in the first day or two and then settle down. The number varies with the tree’s size, species and room temperature, so rather than counting, check the stand every day and refill it so the cut end always stays under water. If the base dries out, resin can seal it and the tree may stop drinking well; a new cut is the usual fix.

Plain water is enough. Sugar, bleach, aspirin, soda and similar additives have no proven benefit and some stands can be damaged by them.

Where to put the tree

• Keep it away from fireplaces, radiators, heating vents, space heaters and direct sun.
• Lower room temperatures slow water loss.
• Use LED lights, which produce less heat than older incandescent bulbs.
• Leave the lights off when you are out or asleep.
• Keep the tree clear of exits and out of the path of pets and small children, and watch pets so they do not drink stand water.

Why needles drop early

• The tree was cut long ago. If it dried out before you bought it, it will shed sooner.
• The stand ran dry. Even a short dry spell can seal the cut and cut off water.
• Heat and dry air. A warm, dry room speeds moisture loss.
• Species. Some trees hold needles longer than others. Firs generally hold needles better than spruces.
• Normal shedding. Inner, older needles turn brown and drop each year, even on a healthy tree.

If large green sections drop when you touch branches, the tree is drying out. Consider taking it down, since a dry tree is a fire risk.

Safety and disposal

Check the water daily and watch for dryness. Take the tree down once it is dry and brittle, usually within a few weeks. Many towns offer curbside pickup or drop-off recycling; check local rules. Cut branches can also be used as winter cover for beds, and after the season you can chip the trunk for the garden path. Keep the area around the trunk clear of mulch problems; the guide on how to mulch around trees shows how to use chipped material safely.

If you have a potted living tree rather than a cut one, keep it indoors for only a short stretch and keep it cool, as warm rooms can break dormancy. The checks in how to tell if a tree is dead or just dormant are useful afterward. For other holiday plants, see why a poinsettia drops leaves.

Quick answers

Should I put anything in the tree water?

No. Plain tap water is enough. Additives have not been shown to help and some can harm the stand.

Can I make a fresh cut after the tree has been home a while?

Yes, if the base has dried out. Take the tree out of the stand, cut a thin slice off the base and return it to water quickly.

How long should a cut tree last indoors?

With good care, many last around four weeks, but it depends on freshness, species and room conditions. Remove the tree if it becomes dry and brittle.

Is the needle drop normal?

A few brown inner needles are normal. Heavy drop of green needles means the tree is too dry.