Outdoor Christmas Tree: Choosing One That Lasts Outside
Buy an outdoor Christmas tree for its weather rating, anchoring and power setup first, and for looks second. For most porches, a pre-lit tree 6 to 8 feet tall with outdoor-marked LED lights, a stake or weighted base, and a GFCI-protected outlet is the safe starting point.
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What actually decides the purchase
Three things decide whether an outdoor tree lasts: whether it is rated for outdoor use, how it is anchored, and how it gets power. Height and fullness matter less than people expect. A tree that looks great in a photo but has indoor-only lights, a light plastic stand and a short cord will fail in the first storm, or become a hazard before then.
We have not tested any of the product types below. This is a buying checklist built from safety organizations and retailer sizing guides, so check each product's own label and manual before you buy.
Outdoor rating: what to look for on the label
- Outdoor marking. Extension cords and electrical decorations used outdoors should be marked for outdoor use. If the box does not say outdoor, it stays inside. Indoor lights often have thinner insulation that can crack when exposed to the elements.
- A lab listing. Look for a UL listing with an outdoor rating. Outdoor-rated cords are designated with a "W" in the wire type, such as SJTW.
- Weather-resistant tips. One buying guide recommends UV-protected PVC or durable PE tips, a sturdy metal frame, and integrated LED lighting designed for exterior use. Treat that as a sensible checklist rather than a standard.
- LED lights. LED lights generate significantly less heat than incandescents. That matters on a tree you plan to leave up for weeks.
Sizing: match the tree to the space
Measure the spot first, then add room for a topper. One retailer guide suggests planning 6 to 12 inches of space above the tree for a topper. Width is where outdoor buyers go wrong, because a thin tree catches wind differently than a full one and looks lost beside a wide door.
A common height-to-width rule from a retailer guide: a full tree's height is about 1.5 times its diameter, so a 7-foot full tree is at least 47 inches wide. The same guide says a 7-foot medium tree runs 39 to 46 inches wide, and a slim 7-foot tree is 38 inches or less. For heights, under 6 feet suits entryways and accents, while 6 to 8 feet is the most common size.
Worked example: a 12-foot-wide porch
You want two matching trees flanking a 3-foot front door on a porch that is 12 feet wide.
- Choose 7-foot medium trees at about 42 inches (3.5 feet) wide.
- Two trees take 7 feet. Add the 3-foot door and you have used 10 feet.
- That leaves 2 feet, or about 1 foot of breathing room on each side. It is enough to walk past, but tight.
- If you want more room, drop to slim 7-foot trees at 38 inches or less. Two of them take about 6.3 feet and leave a comfortable gap.
Check the ceiling too. A 7-foot tree plus a 10-inch topper reaches roughly 7 feet 10 inches, which is fine under most porch roofs but not under a low overhang.
Comparing the main types
| Type | Best for | Anchoring | Price level | Watch for |
|---|---|---|---|---|
| Small pre-lit stake tree (2 to 4 ft) | Walkways, planters, entry | Ground stake or tripod | Low | Battery models need weatherproof battery boxes |
| Full-size pre-lit outdoor tree (6 to 8 ft) | Porches, front yards | Heavy base plus stakes | Medium to high | Cord length and outlet location |
| Tall tree (9 ft and up) | Large yards, commercial look | Heavy base plus guy lines and stakes | High | Wind load, assembly time, storage space |
| Unlit outdoor tree | Custom lighting, reuse of existing strings | Same as above | Low to medium | You supply and rate the lights yourself |
| Cone or frame tree covered in lights | Windy sites, clean look | Metal frame and stakes | Medium | Fewer branches to hold ornaments |
Anchoring against wind
One guide notes that the taller and fuller the tree, the more anchoring it needs. Another says a robust metal stand or ground stake system is essential, especially in windy areas. Plan on stakes for lawn placement. On a deck or balcony, use a weighted base and tie the tree to a railing.
- Choose a stand with a wide footprint rather than a narrow ring.
- Add guy lines for anything near 9 feet or taller.
- Do not trust a stated wind rating on a product page as a guarantee, since these are the seller's claims.
- Check overhead first. Look for overhead power lines before using ladders or decorating outdoor trees.
Power: cords, GFCIs and how many strings
Power is where most safety problems start. ESFI advises that outdoor electric lights and decorations be plugged into GFCI-protected circuits, and that portable outdoor GFCIs can be bought if your outlets are not protected. It also says to match the amperage needs of your products to the rating of the extension cord.
- Use an outdoor-rated cord, long enough that you never daisy-chain several short ones.
- Keep cords and light strings clear of snow and standing water. Keep connections off the ground and away from puddles, driveways, and walkways.
- Follow manufacturer instructions and connect no more than three light strings together. Some strings allow fewer.
- Turn off decorations before leaving home or going to sleep. An outdoor timer makes this automatic.
How much to buy for a typical house
A typical single-story house with a porch needs one or two trees plus a handful of accent lights. The numbers below are our own estimates for planning, so adjust them to your layout.
Worked example: a 30-foot porch railing
- A straight run along the 30-foot railing needs 30 feet of string.
- If you swag the lights in gentle loops, add roughly 20 percent. That is 36 feet.
- Two 20-foot strings give 40 feet, which covers it with a little slack.
- Check the label for how many strings can be joined end to end, and stay below that limit. Two strings is within the three-string maximum cited above.
- Add up the wattage of the railing lights and the tree lights, and compare the total to the cord and outlet ratings.
For a front yard tree, count the strings you need by following the tree's height. Unlit trees need far more string than you expect, so pre-lit often costs less overall for tall trees.
Hanging and securing lights
ESFI says to fasten lights securely to firm supports, without attaching them in a way that could damage the cord's insulation. Use clips made for the job rather than nails or staples. Metal ladders are a problem near wiring, since ESFI recommends wooden or fiberglass ladders outdoors because metal ones conduct electricity.
Storage and lifespan
Decorations are not meant to stay up year-round. ESA advises you remove decorations after the holidays, as they are not meant for year-round use. To protect the tree:
- Dry it fully before folding to prevent mildew.
- Choose sectional trees with a labeled storage bag or a rigid tote.
- Coil cords loosely around a cardboard reel, not tightly around the trunk.
- Measure your storage space before buying a 9-foot tree. Even folded, it takes up real room.
Common mistakes
- Buying an indoor tree with a weatherproof-looking finish. Check for the outdoor rating, not the look.
- Skipping stakes because the tree seems heavy enough.
- Plugging into an outlet without GFCI protection.
- Running a cord across a wet walkway or burying a plug connection in snow.
- Ignoring the width. A thin tree beside a wide door looks small and a full one can crowd the steps.
- Buying the cheapest cord and then overloading it.
Common questions
Can I use an indoor Christmas tree outside?
It is not a good idea. Indoor lights often have thinner insulation that can crack in the weather, and ESFI says to use only products marked for outdoor use outside. Choose a tree and lights labeled for outdoor use.
Do outdoor Christmas trees need a GFCI outlet?
Yes, ESFI recommends plugging outdoor lights and decorations into GFCI-protected circuits. If your outlet lacks GFCI protection, a portable outdoor GFCI can be bought where electrical supplies are sold.
How do I keep an outdoor tree from blowing over?
Use stakes on grass or a heavy, wide base on a hard surface, and tie the tree to a railing on balconies. Taller and fuller trees need more anchoring, and trees around 9 feet or more benefit from guy lines.
What size outdoor tree fits a porch?
Measure the width and height of the spot, then add room for a topper. A 7-foot medium tree is roughly 39 to 46 inches wide, according to a retailer sizing guide, so two of them beside a door need about 7 feet of porch before you count the door.
Should I leave the tree lights on all night?
No. ESFI and ESA both advise turning decorations off before you leave home or go to sleep. An outdoor timer makes it easy.
Sources
- Electrical Safety Foundation International (ESFI)
- Electrical Safety Authority (ESA)
- JCPenney Christmas Tree Buying Guide