The best winter urn fillers, sized to the planter they have to stand in

What an urn filler is, and what it is not

An urn filler is a bundle of artificial evergreen on a stake, made to stand in an outdoor planter that has nothing growing in it over winter. It is not a tree. A porch Christmas tree is a complete lit cone that happens to sit in an urn; a filler is foliage that fills the urn you already own, which is why it comes on a tripod stake or a spike rather than with a base.

That distinction decides which page you want. If the planter is empty and you want it to look planted, this page. If you want a pair of lit trees either side of the door and do not care what they stand in, the porch trees page. If what you actually want is greenery in a window box, the stems on Christmas berry picks and floral stems are the same idea at a smaller scale, ranked on stem length.

The proportion arithmetic, and the figure nobody publishes

A filler is bought to be seen above the rim of a planter, so the number that matters is not the filler height on its own — it is how much of that height clears the rim. And no listing in this category publishes the insertion depth: how far down into the soil or foam the stake has to go.

That is why the HMASYO pair is useful even though it publishes nothing about its lighting: the same product at 23 in and 30 in for the same price means the decision is about your planter, not about the product. On an urn up to about 15 in, 23 in is right; from 16 to 20 in, 30 in is. The fall equivalent of this whole calculation, with the same rule and a different plant palette, is on fall urn fillers.

Lighting, and why the timer is the figure to buy on

Almost every lit urn filler is battery powered, because there is rarely an outlet inside a planter. That makes the timer the most important published figure in the category and the one almost nobody prints. A battery filler without a timer is switched on and off by hand, at the planter, in the cold, twice a day.

Exactly one filler here publishes one. The 33 in pair publishes a timer and 8 modes; the Glintoper publishes the highest LED count at 60 and no timer; the HMASYO pair publishes neither. The general argument about battery versus plug-in for outdoor decorations, including the cell cost over a season, is on battery vs plug-in decorations, and the timer hardware itself is on Christmas light timers.

One note on the modes. Color-change settings on an outdoor evergreen filler are the wrong feature for a front door: the warm white setting is the one you will use after the first evening. Treat the mode count as a thing the listing mentions rather than a reason to buy.

Branch count, and why 230 is worth knowing

The failure mode of an artificial urn filler is looking like a bundle of sticks with some foliage attached. What prevents it is density, and density is published exactly once on this page: 230 branches on the 33 in filler.

That is the same reasoning this site uses for trees and wreaths, where tip count is the figure that separates a full silhouette from a sparse one — the tree version is on tree size and tip count and the wreath version is on pre-lit Christmas wreaths. When a filler publishes no branch count, the photograph is all you have, and photographs in this category are taken with the foliage fanned out as far as it will go.

Buy them in pairs, and buy them at once

An urn filler almost always has a twin, because the planters it goes in are almost always either side of a door. Four of the five here are sold two to a pack, which is the right way to buy them: two separate orders of the same product can arrive from different batches with different foliage tone, and on a symmetrical doorway that is visible.

The unlit cedar filler does not publish a quantity at all, which is the practical reason it is the skip on this page as much as the lighting is. If you need a pair, you cannot tell from the listing whether one order gives you one.

The part that makes them worth it: January

The best argument for an urn filler is not Christmas. It is that a planter filled with evergreen, cones and bare stems looks deliberate right through January and February, long after anything with a bow on it has to come down.

That means buying one that is evergreen first and Christmas second. A filler loaded with red bows and gold berries is finished on 2 January; a cedar or pine filler with cones is a winter planter. Take the bow off, leave the greenery, and the porch stays dressed until spring. The same approach to the rest of the porch is on the winter porch after Christmas, and the fall version of the same planter is on fall urn fillers.

Buying one complete, or building it from stems

There are two ways to fill a winter planter and this page ranks only one of them. A complete filler is a single staked unit you drop in. The alternative is to build the arrangement from loose stems — evergreen branches, berry stems, birch poles, cones — pushed into floral foam or the existing soil.

The stems themselves are ranked on this site by length, which is the figure that decides whether they disappear into an arrangement or stand above it: Christmas berry picks and floral stems does that arithmetic, including the insertion-depth problem that applies here too. For the fall version of the same build-versus-buy decision, with an autumn plant palette, see fall urn fillers.

The planter is the part that breaks

A detail that has nothing to do with the filler and ruins more front doors than anything on this page: a ceramic or terracotta planter left outside with wet soil in it will crack over winter. Water in the soil expands as it freezes and the pot has nowhere to give. It is the same physics as the snow-globe rule elsewhere on this site, applied to something much more expensive.

Which means the right planter for a winter filler is resin, fiberglass, metal or concrete, and if the pot you want to use is ceramic, the filler should go into a liner or a block of florist foam rather than into wet soil. The other half of the same problem is drainage: a planter with a blocked hole holds water, freezes solid and heaves the filler’s stake out of position. Check the hole is clear before the filler goes in, because you will not be doing it again until March.

The wind question above and the freeze question here point the same way. A heavy, frost-proof planter with clear drainage, weighted at the base, is what makes a tall filler work; a light ceramic pot with wet soil is the combination that produces a cracked planter lying on the path in February. The wider weather-durability question across seasonal decor is on fall decor weather durability.