How to Keep Your Christmas Tree Fresh (Hint: It Gets Thirsty, Too)

Sarah B. Weir, Shine Senior Writer

Your Christmas tree should look and smell fresh for at least a month, unless, that is, you start treating it with soda pop, disinfectant, booze, fertilizer, or any other additives that are being circulated around the Internet as life extenders. "It's my sixteenth year working for the National Christmas Tree Association," director of communications Rick Dungey tells Yahoo Shine, "and I'm always flabbergasted by some of the crazy concoctions I hear about."

More on Yahoo: House Decorated with $450,000 Christmas Lights

Dungey says the best way to prolong the beauty of your holiday tree is to make sure the trunk has been freshly cut and to keep it submerged in plain tap water. "At this time of year, I always remember what an old tree farmer told me, 'A tree grows out the field for eight years drinking nothing but rain and then people get it home and give it a 7-Up.'" Adding nutrients such as sugar or plant food will cause nitrates to develop, turning the water into what Dungey compares to a "dirty fish tank." If you then try to counteract with a disinfectant like Pine-sol or alcohol, you could damage the tree's otherwise healthy plant tissue. "Would you dump vodka into a houseplant?" he asks.

More on Yahoo: St. Nicks Learn Tricks of Trade at Santa School

Other tips:

Choose an un-baled tree from a lot or store that manages their inventory properly. Some trees should be baled (covered in mesh) for storage in order to prevent moisture loss, others displayed fully open for purchase. If you live in a hot area of the country, the trees should be stored in the shade and stacked on hardwood mulch that is regularly being watered. Dungey says whatever commercial species you prefer should last through the holiday display season if treated properly.

Before you purchase, test a branch for pliability and also run your hand along it to check for foliage freshness. Bend a twig, if it snaps, or if the tree loses a lot of needles, it's probably too dry.

Once you choose your tree, ask the seller to cut about a half an inch off the trunk if you don't have the ability to do so at home. Freshly exposed cells will improve water absorption.

Get the tree home and into water as soon as possible. If it's been more than three or four hours, you should cut off a slice of the trunk. Try to cut straight across for the best absorption. And drilling a hole in the trunk won't increase water uptake.

Choose a base stand that can hold enough water for the size of your tree. The rule of thumb is one quart of water per inch of trunk diameter.

Check the water every day. It's normal for trees to absorb water at a variable rate, so just because the base was full one day doesn't mean you can skip checking the next. The cut end of the trunk should remain constantly submerged.

Situate the tree out of direct sunlight and away from heating vents. Hot air acts like a hair dryer on the branches and foliage explains Dungey.

Use modern LED lights, which emit very little heat, to decorate. Don't use lights that are meant for the outdoors, they burn much hotter.

For more information about where to purchase or how to choose, display, or recycle a holiday tree, visit the National Christmas Tree Association's website.

Also on Shine:

10 Easy DIY Tree Ornaments to Love Forever

World's Most Expensive Wreath Can Be Yours for $4.6 Million

How to Fake a Clean House in 45 Minutes or Less