Nashville’s long, humid growing season makes Davidson County genuinely good wasp habitat. The city sits in USDA hardiness zone 7a–7b with a humid subtropical climate, which means local colonies get roughly six to seven active months — noticeably longer than colonies in the Midwest or Northeast. Most wasps you’ll meet in a Nashville yard are beneficial predators that leave people alone, but a few species build large defensive colonies right where homeowners work and play.
For non-aggressive wasps I've had great luck spraying nests with this Spectracide wasp remover in the evening. For a nest up high in an eave, soffit, or tree, this Gotcha pole adapter clamps onto the can so you can spray from the end of an extension pole and treat the nest from 10+ feet away instead of standing right under it. And for anything aggressive I wear this ridiculous-looking upper torso beekeeping suit and keep my distance. It seems silly, but trust me, I learned the hard way.
This guide covers which wasps actually live in Middle Tennessee, how to tell them apart, the month-by-month Nashville wasp calendar, and what to do (and not do) when you find a nest.
If a Nashville neighbor mentions “red wasps,” they almost certainly mean Polistes carolina — the rust-red paper wasp that is one of the most abundant stinging insects across Middle Tennessee. Adults run about 1 inch long with a slim waist, reddish-brown body, smoky dark wings, and long legs that dangle in flight. Polistes metricus is a close relative that’s darker, often reddish-brown with black shading.
Red wasps build the familiar open, upside-down umbrella comb — no paper envelope around it — and they favor exactly the spots Nashville houses provide: porch ceilings, under deck rails, inside grill covers, in the corners of carports, and under the lip of gutters. Colonies stay comparatively small (typically 20–75 adults) but red wasps are quick to defend a nest, and their sting is regularly rated among the more painful of the common paper wasps.
Because they nest at head height on structures people touch daily, red wasps cause a disproportionate share of Nashville stings. For full identification detail see our red wasps guide, and for the behavioral reasons behind their reputation read why red wasps are so aggressive. If you’ve already been stung, red wasp sting treatment walks through symptoms and care.
Alongside red wasps, Davidson County has northern paper wasps (Polistes fuscatus, brown with yellowish markings) and the introduced European paper wasp (Polistes dominula), which is boldly black-and-yellow and often mistaken for a yellowjacket. The giveaway is body shape and flight: paper wasps are slender with trailing legs, while yellowjackets are stocky and tuck their legs up. European paper wasps also nest in enclosed cavities — mailboxes, gas grill burners, downspouts, and porch light fixtures — more often than the native species do. Our paper wasp hub guide covers all four US species, and how to get rid of paper wasps covers removal.
The eastern yellowjacket is the ground-nesting species behind most late-summer emergency calls in Middle Tennessee, with southern yellowjackets also common through the region. Both nest underground — old rodent burrows, gaps under tree roots, voids beneath retaining walls and railroad-tie borders — and both will also colonize wall voids and soffits on houses.
Colonies can reach several thousand workers by August. Yellowjackets are stocky, bright black-and-yellow, sting repeatedly, and recruit nestmates within seconds when the nest is vibrated. In Nashville, the classic injury is a homeowner running a mower or string trimmer over a hidden ground entrance in a shady, sloped part of the yard.
Learn more in our yellow jacket hub guide, plus wasps in grass and wasps that live in the ground for identifying ground nests before you mow.
Despite the name, this is a large black-and-ivory yellowjacket relative, not a true hornet. Bald-faced hornets build the gray, football-shaped enclosed paper nest people notice hanging from a tree limb, a soffit corner, or dense shrubbery — often not spotted until the leaves drop in autumn. They are highly defensive within about 10 feet of the nest. Nests in trees well away from foot traffic can usually be left alone until frost kills the colony. See our bald-faced hornet identification guide.
Tennessee has established populations of the European hornet, the only true hornet in the eastern US. These are big — roughly 1 to 1.4 inches — with reddish-brown and yellow coloring. They’re the reason Nashville homeowners sometimes report a “huge wasp” hitting a porch light after dark: European hornets are partially nocturnal and are drawn to lights, which no other local wasp is. They typically nest in hollow trees, wall voids, and attics.
For the record, the Asian giant hornet (the insect the press called the “murder hornet”) has never been found in Tennessee. It was only ever detected in a small area of Washington state, and USDA declared it eradicated from the US in December 2024. A large hornet in Nashville is a European hornet or a cicada killer.
Every July and August, Nashville homeowners find enormous wasps — up to 2 inches — patrolling low over lawns, mulch beds, and the bare dirt along driveways and sidewalk edges. These are eastern cicada killers, and they arrive on schedule with the annual “dog-day” cicadas they hunt. Females dig burrows in loose, well-drained, sun-baked soil and leave conical mounds of excavated dirt.
They look alarming and the males engage in aggressive-looking aerial jousting, but males have no stinger at all and females are focused on hunting cicadas, not people. Cicada killers are solitary — there is no colony to defend — and stings are rare and usually the result of handling one. In most Nashville yards, the right response is to leave them alone; they’re gone by early September. Details in our cicada killer wasp guide.
Three mud dauber species are common on Nashville structures: the black-and-yellow mud dauber (Sceliphron caementarium), the organ pipe mud dauber (Trypoxylon politum), and the metallic-blue mud dauber (Chalybion californicum). These solitary wasps build mud nests under eaves, in garages and sheds, on brick and stone, and inside crawlspaces — the parallel mud tubes on a Nashville garage wall are almost always organ pipe daubers.
Mud daubers stock their cells with paralyzed spiders, including black widows, and they are among the least aggressive wasps in the state. They do not defend their nests and almost never sting. Old mud nests can be knocked off and scraped away in winter with no risk. See our mud dauber hub guide.
| What you see | Likely species | Sting risk |
|---|---|---|
| Rust-red slender wasp, open umbrella nest on porch | Red wasp (Polistes carolina) | High if nest disturbed |
| Black-and-yellow slender wasp in a mailbox or grill | European paper wasp | Moderate |
| Stocky black-and-yellow wasp entering a hole in the lawn | Eastern/southern yellowjacket | Very high |
| Gray football-shaped nest in a tree or soffit | Bald-faced hornet | Very high |
| 2-inch wasp hovering over bare soil in July | Cicada killer | Very low |
| Big reddish-brown hornet at a porch light after dark | European hornet | Moderate–high |
| Mud tubes on a garage wall or under eaves | Mud dauber | Almost none |
Because Middle Tennessee warms early and frosts late, Nashville’s wasp season runs longer than the national average. Davidson County’s last spring freeze typically falls in mid-April and the first fall freeze usually arrives in late October, which is the practical bracket for colony activity.
| Period | What’s happening | Homeowner action |
|---|---|---|
| Late March – April | Overwintered queens emerge on the first warm stretches and start founding nests alone. Combs are the size of a quarter with no workers yet. | The single best window to remove nests. Knock down starter combs on porches and re-check weekly. |
| May – June | First workers emerge and nests grow steadily. Nashville’s wet late spring — the area averages more than 45 inches of rain a year, with May among the wettest months — washes out some early open combs and slows building. | Inspect eaves, deck rails, grills, and playsets monthly. Seal soffit and siding gaps. |
| July – August | Peak colony growth. Yellowjacket ground nests scale up fast, cicada killers appear, and bald-faced hornet nests become visible. | Walk the yard before mowing or trimming. Watch for insects streaming in and out of one spot in the ground. |
| Late August – September | Highest sting risk of the year. Colonies are at maximum size and workers switch from hunting insects to seeking sugar, which pulls them to trash cans, patio drinks, fallen fruit, and food at outdoor events. | Keep drinks covered, use lidded trash cans, and pick up fruit under trees. Defer non-urgent removals to professionals. |
| October | First frosts end most colonies. New mated queens leave to find overwintering shelter — attic corners, siding, wall voids, woodpiles, leaf litter. | Seal entry points now. Old nests can be removed once activity has stopped for several days. |
| November – March | Only mated queens survive, dormant in protected sites. | Remove and scrape off abandoned nests. Wasps do not reuse last year’s nest. |
One quirk worth knowing: Nashville regularly gets 60–70°F days in January and February. Those warm spells can rouse queens overwintering in an attic or wall void, and they crawl toward light and warmth — which is why people find a single sluggish wasp indoors in midwinter with no nest anywhere. Our guides on where wasps go in the winter and lots of wasps but no nest explain what’s happening, and how wasps are getting in my house covers sealing the routes they use.
Local housing stock and landscaping create predictable nest sites:
What works:
What to avoid:
Call a licensed professional when:
For method and cost context, see our complete guide to wasp nest removal and wasp nest removal cost.
A normal reaction to a local wasp sting is sharp pain, a raised welt, redness, and swelling that peaks within a few hours and fades over a couple of days. Wash the site, apply a cold pack for 15–20 minutes at a time, and use an oral antihistamine and an over-the-counter pain reliever if needed. Unlike honeybees, wasps don’t leave a stinger behind, so there’s nothing to scrape out.
Seek emergency care immediately — call 911 — for hives spreading away from the sting site, swelling of the lips, tongue, or throat, difficulty breathing, wheezing, dizziness, vomiting, or a rapid weak pulse. These are signs of anaphylaxis. Multiple stings, especially from a disturbed ground yellowjacket nest, also warrant prompt medical evaluation even without allergy symptoms. If you carry an epinephrine auto-injector, keep it accessible during Nashville’s August–September peak.
More detail: do wasps sting or bite and red wasp sting treatment.
Honeybees, bumblebees, carpenter bees, and Tennessee’s many native solitary bees are pollinators, not pests, and they’re far less inclined to sting than a defensive wasp colony.
Telling wasps and bees apart matters before you decide what to do — our wasp identification guide covers the distinguishing features.
They’re red paper wasps, almost always Polistes carolina, with Polistes metricus also common. They’re roughly an inch long, rust-red with dark smoky wings, and they build open umbrella-shaped combs on porch ceilings, deck rails, and under eaves throughout Middle Tennessee. They’re among the more defensive paper wasps in the state and their sting is notably painful, but they only attack when the nest is threatened.
Overwintered queens typically become active on the first warm stretches in late March or April, and colonies are usually finished after the first hard freezes in late October. Peak activity and peak sting risk run from late August through September, when colonies are largest and workers switch to seeking sugar.
Almost certainly an eastern cicada killer. They’re up to 2 inches long, hover low over turf and bare soil, and leave mounds of dirt beside a burrow entrance. They’re solitary, males can’t sting at all, and females are focused on hunting cicadas. They disappear by early September and rarely need any treatment.
No. The northern giant hornet (Vespa mandarinia) has never been found in Tennessee — the only US detections were in northwest Washington state, and USDA declared it eradicated from the country in December 2024. Large hornets in Nashville are European hornets (Vespa crabro), which are established in Tennessee, or cicada killers.
It’s an overwintering queen. Mated queens shelter in attics, wall voids, and behind siding through winter, and Nashville’s frequent 60°F-plus winter days can warm those spaces enough to rouse them. They crawl toward light and warmth and end up in living space. There’s no nest indoors, and a single winter wasp can simply be removed. See where wasps go in the winter.
April is by far the easiest and safest, when a nest holds one founding queen and a comb the size of a coin. Late fall after a hard freeze is also safe, because the colony is already dead. The most dangerous window is August and September, when a paper wasp nest may hold dozens of adults and a yellowjacket colony thousands.
Wasps don’t reuse the previous year’s nest, so an abandoned nest isn’t a re-infestation risk on its own. It’s still worth removing once activity has stopped, because the site clearly suits the species and new queens often build again nearby, and because old nests can harbor scavenging insects. Winter is the safe time to do it.
This guide is educational. Wasp removal carries real risk of injury — if you have any doubt about a nest’s species, size, or location, or if anyone in the household has a sting allergy, hire a licensed pest management professional.
For a region-by-region overview of which wasps live where in the US, see our hub guide: Wasps by State: Regional Identification & Seasonal Activity Guide. For species-by-species physical identification, see the Wasp Identification Guide.
More wasp guides: