Hummingbird Feeders: Placement, Nectar and Cleaning

A hummingbird feeder is one of the cheapest ways to bring wildlife to a window, and one of the easiest to get wrong. The expensive mistakes are small ones: buying ready-made nectar you do not need, hanging the feeder where the sun spoils it, or letting it sit dirty until the birds stop coming. Here is how to set one up for a few cents of sugar a refill.

Where to hang a hummingbird feeder

Audubon's yard guide says to hang feeders in the shade to keep the sugar solution from fermenting. Clemson's Home & Garden Information Center adds that a shaded spot, rather than full sun, reduces leakage and slows mold growth.

Audubon also advises hanging several feeders far enough apart that the birds cannot see one another, so a single bird does not dominate all of them. If you have one feeder, the same idea applies: do not place it in a spot so exposed that a territorial bird can guard it easily.

Audubon's feeding FAQ notes that planting red or orange tubular flowers near the feeder may help hummingbirds find it. That is a free tip if you already have a garden.

The nectar: cheaper and safer than the store version

Audubon's FAQ calls for a 1:4 mix of refined white sugar to tap water, which is ¼ cup of sugar to 1 cup of water. Clemson gives the same ratio, for example 1 cup of sugar to 4 cups of water.

Boiling: Audubon's FAQ says to boil, then cool; its yard guide says to boil for one to two minutes. Clemson says boiling is not required, as long as the sugar dissolves completely. Boiling and cooling is the safe route if you are unsure.
No dye: Both Audubon pages and Clemson say not to add red dye or food coloring.
Only white sugar: Audubon says brown sugar, honey and molasses contain other ingredients that can harm hummingbirds, and artificial sweeteners should never be used.
Leftovers: Clemson says extra nectar keeps in the refrigerator for 7 to 10 days. Let it come to room temperature before refilling.

I am deliberately not quoting store prices, because they vary. The point is that the recipe is a spoonful of sugar and water you already own, so there is no reason to buy a premixed product with dye and extras.

Cleaning schedule

A schedule that depends on the weather keeps cleaning simple:

Weather	How often to clean (Audubon FAQ)
Hot	Every day or every other day
Temperate	Every three days
Cool	Twice a week

Clean sooner if you see mold, if insects are getting in, or if a sick bird has used the feeder. Audubon's yard guide also says to clean at once if the nectar looks cloudy. Clemson adds that when temperatures exceed 90°F, you should replace the nectar daily.

For the cleaning itself, use hot tap water with hydrogen peroxide or a weak vinegar solution, as the FAQ describes. Audubon's yard guide gives a mix of one part white vinegar to four parts water about once a week, and Clemson suggests a bottle brush with a stronger solution of 1 part vinegar to 2 parts water. The sources vary here, so pick one and rinse well. Audubon says to rinse three times with warm water before refilling.

If you want a shortcut that costs nothing, our general guide on how to clean a bird feeder covers the basics for seed feeders, though nectar feeders need more frequent attention.

When to put it out and when to take it down

Timing depends on where you live, and the sources disagree on specifics:

Spring: Audubon's FAQ says to put the feeder out about a week before hummingbirds usually arrive, and to check with a local Audubon center, chapter or bird club. The yard guide suggests checking eBird for first sightings and hanging feeders a couple of weeks before that date. Clemson mentions about March 15 for South Carolina.
Fall: Audubon's yard guide says to keep feeders up for two weeks after you see the last bird using them. The FAQ adds that you can leave feeders as long as hummingbirds visit, even into early winter for late migrants. Keep cleaning them even if the nectar is not being eaten, and discard unused nectar when you take them down.
Freezing: If nighttime temperatures regularly drop below freezing, Audubon says to keep the feeder from freezing. A slight dip may not freeze the nectar, since sugar lowers its freezing point.

Leaving a feeder up does not make hummingbirds stay behind when they would normally migrate. That point is a general explanation, not a claim drawn from the sources here. If it matters to you, ask a local bird club.

A quick checklist

Shade, not full sun
1 part white sugar to 4 parts water, no dye
Clean every 2 to 3 days, daily in heat
Discard old nectar, do not top it off
Take it down two weeks after the last visitor

Frequently asked questions

Where should I hang a hummingbird feeder?

In the shade, according to Audubon and Clemson, ideally with several feeders spaced so the birds cannot see each other. Shade slows fermentation and mold.

When do I take it down?

Audubon's yard guide recommends keeping it up for two weeks after you see the last hummingbird using it. Clean it and discard leftover nectar before storing it.

Do I need to buy nectar?

No. A 1:4 mix of white sugar and water is what Audubon and Clemson recommend, and both say to skip the dye.