Trumpet Creeper

Campsis radicans · Bignoniaceae
Flower Perennial Vine Ornamental
Native to the eastern and southeastern United States
Plant with care. Native but very aggressive - it suckers into thickets, self-seeds widely, and grows heavy enough to damage gutters, fences, and shingles. Give it a strong freestanding structure and cut it back hard, or it will take over.

Nicknamed 'cow itch vine' because contact with the leaves, flowers, or sap can cause skin redness and itching in sensitive people - wear gloves when pruning. It's a native but VERY aggressive vine: it suckers into thickets, self-seeds widely, and grows heavy enough to damage gutters, shingles, fences, and trellises, so it needs a strong freestanding structure, room to spread, and hard yearly pruning. Keep it away from house walls, small structures, and neighboring plants it can smother.

Overview

A tough native vine with big orange trumpet flowers all summer and an unmatched pull on hummingbirds - but genuinely aggressive, suckering and self-seeding into thickets and heavy enough to damage structures, so plant it deliberately with room and a firm hand.

Trumpet creeper is a native powerhouse: from early summer into fall it bears big clusters of glowing orange to red-orange trumpet flowers, and it draws hummingbirds like almost nothing else — its nickname 'hummingbird vine' is well earned. It's tough as nails, cold-hardy far into the North, drought-proof, and fast, clinging by aerial rootlets to cover a fence, arbor, or dead tree in a hurry. For a hot, sunny spot where you want reliable summer color and a constant hummingbird show, few natives deliver more flower for less fuss.

The catch, and it's a real one, is that trumpet creeper is genuinely aggressive — a native, not an exotic invader, but a bruiser all the same. It suckers from the roots into new shoots feet away, self-seeds prolifically, and grows so heavy and woody that its weight and clinging roots can pull down gutters, pry apart mortar and siding, and crush a flimsy trellis. It also carries the folk name 'cow itch vine' because its foliage and sap can irritate sensitive skin. None of this makes it a bad plant — it's a superb wildlife vine — but it does make it one to site with real care: on a strong freestanding structure, with room to roam, well away from the house and from smaller plants it would smother, and with a commitment to prune it hard every year and pull the suckers. Given that, it's a magnificent, low-water, hummingbird-feeding native. Planted carelessly, it becomes a thug you'll fight for years. Its tamer native cousin is crossvine; its polite one is coral honeysuckle.

At a glance

Sun
Full sun · Part sun
Water
Medium
Spacing
96–240 in (typ. 144)
Mature height
300–480 in (typ. 360)
Start by
Direct sow · Transplant · Cuttings · Division
Frost
Hardy
Germination
14–60 days (typ. 30) @ 65–85 °F (typ. 75)

When to plant

Mar 27 – May 25
Primary TransplantSpring
Vigorous across the South. Plant in spring or fall in full sun on a robust support with room to roam. Prune hard in late winter each year and pull suckers to keep it in bounds.

Zone 7a typical frost: last Apr 10 · first Oct 25

Life stages

  1. Planting & first-year establishment day 0–120 from transplant
    • Give it a strong, freestanding structure - not the house
      Trumpet creeper clings with aerial rootlets and gets very heavy and woody. Grow it on a robust freestanding structure (a heavy-duty arbor, pergola, metal fence, or dedicated post) with room to spread. Keep it OFF house walls, gutters, wood siding, and shingles - its weight and clinging roots can pry apart and damage structures.
    • Plan for its spread from day one
      This is a genuinely aggressive native. It suckers from the roots into new shoots several feet away and self-seeds freely, so decide up front how you'll contain it: a spot where it can roam, a mowed edge around it, or a root barrier. Wear gloves when handling it (the 'cow itch' irritation).
    • Water to establish, then step backevery 6 d
      Water a new plant through its first season; after that it's tough, drought-tolerant, and needs almost no encouragement - if anything, the challenge is slowing it down, not helping it along.
    Fast, vigorous growth once establishedRoot suckers popping up several feet from the plantClinging aerial rootlets gripping (and potentially damaging) structures
  2. Spring growth & sucker management Apr, May, Jun (yearly)
    • Do the hard pruning in late winter or early spring
      Trumpet creeper blooms on the current season's new growth, so prune it hard in late winter or early spring before growth starts - you can cut it back drastically (even to a framework of main stems) without losing bloom, and hard pruning actually keeps it in bounds and flowering well. This is the key to living with the vine.
    • Pull suckers and seedlings as they appear
      Through spring, root suckers send up shoots around the plant and seedlings sprout from dropped seed. Pull, dig, or mow them regularly to keep the vine from colonizing the yard - staying on top of this is the main ongoing job.
    Rampant new growth in spring (prune before it starts)Suckers and volunteer seedlings spreading outwardShoots reaching toward and onto nearby structures and plants
  3. Bloom (summer, big orange trumpets, hummingbird favorite) Jun, Jul, Aug, Sep (yearly)
    • Enjoy the summer-long hummingbird show
      From early summer into fall the vine bears large, showy clusters of orange to red-orange trumpet flowers 2-3 inches long - one of the most reliable hummingbird plants there is, drawing them (and bees and butterflies) all season. It's often called the 'hummingbird vine' for exactly this reason.
    • Deadhead to limit self-seeding (optional)
      If you want to reduce the flood of self-sown seedlings, remove spent flowers before they form the long seed pods - though a big vine sets far too many to catch them all. Deadheading can also nudge continued bloom.
    Long summer-into-fall bloom (unlike the early-spring native vines)Heavy hummingbird, bee, and butterfly trafficLong bean-like seed pods forming after the flowers (source of self-seeding)
  4. Winter (deciduous, bare woody vine) Jan, Feb, Nov, Dec (yearly)
    • Cut it back hard while dormant
      Trumpet creeper is deciduous, dropping its leaves to a bare, woody, often thick framework in winter. The dormant season (late winter especially) is the prime time to prune it hard - thin the tangle, cut back overgrowth, and reduce it to a manageable structure. It blooms on new wood, so this doesn't cost you flowers.
    • Check that clinging roots aren't damaging structures
      With the leaves gone, inspect where the vine attaches: its aerial rootlets and sheer weight can work into mortar, siding, gutters, and shingles over time. Pull it off any structure it's damaging while it's dormant and easier to handle.
    A bare, heavy, woody framework in winter (normal - it's deciduous)Clinging roots working into mortar, siding, or guttersLong dried seed pods splitting to scatter winged seed

Watch out for

Aphids Pest LowMay, Jun, Jul

Small soft-bodied sap-suckers clustering on tender tips and buds, excreting sticky honeydew.

Watch for: Colonies on new growth and flower buds, sticky residue, curling shoots, attending ants.

Prevent: Avoid excess nitrogen; encourage ladybugs and lacewings (zinnia flowers help feed them).

Treat: Hose off or use insecticidal soap. Rarely serious on vigorous zinnias.

Trivial on trumpet creeper - its vigor swamps any aphid pressure.

Powdery Mildew Disease LowJul, Aug, Sep

The defining zinnia disease: a fungal white powdery coating that spreads over leaves in humid or crowded conditions, worst in late summer. Rarely kills but disfigures foliage and weakens the plant.

Watch for: White dusty film starting on lower leaves and climbing, leaves yellowing and dropping beneath the blooms.

Prevent: Wide spacing, base (never overhead) watering, full sun and airflow; grow resistant series (Profusion, Zahara) where it recurs every year.

Treat: Remove the worst leaves, improve airflow; potassium bicarbonate, neem, or sulfur sprays slow it. Cutting flowers off healthy upper growth keeps the display going regardless.

Cosmetic and uncommon; a non-issue on a plant this vigorous and sun-loving.

Scale & Sooty Mold Pest LowJun, Jul, Aug

Sap-sucking scale insects can cluster on stems and leaf undersides; their honeydew grows black sooty mold. Usually minor on yaupon, worse on shaded, crowded, or stressed plants.

Watch for: Small bumps on stems and leaf undersides, sticky honeydew, and black sooty film on the foliage.

Prevent: Good airflow and sun, avoid over-fertilizing, and encourage predators; prune out heavily infested wood.

Treat: Horticultural oil smothers scale; wash off sooty mold. Rarely needed on a healthy plant.

Minor and easily handled by the hard yearly pruning this vine gets anyway.

Leaf Spot Disease LowJun, Jul, Aug, Sep

Minor fungal leaf spots may occasionally mark the foliage in humid, crowded conditions, but sweetspire is generally trouble-free and these are cosmetic.

Watch for: Small dark or brown spots on leaves in prolonged humid, wet weather.

Prevent: Reasonable airflow, avoid overhead watering where possible, and remove fallen debris; keep colonies from becoming overly crowded.

Treat: Remove affected foliage if desired; rarely warrants treatment on so tough and resilient a shrub.

A minor, weather-driven cosmetic issue of no consequence on trumpet creeper.

Good & bad neighbors

Plant nearby
Coral HoneysuckleBoth are top native hummingbird vines - but coral honeysuckle is the well-behaved alternative to trumpet creeper's aggression. Grow them on separate strong supports for a long hummingbird season; where space or restraint is limited, choose the honeysuckle instead.
CrossvineIts tamer native cousin in the same family - crossvine blooms early spring, trumpet creeper blooms all summer, so together they cover the whole hummingbird season. Keep the aggressive trumpet creeper on its own structure so it doesn't overrun the crossvine.
Live OakIn the wild trumpet creeper climbs high into large trees; only a big, mature, sturdy tree (or a standing dead trunk) makes a safe host - its weight and clinging roots can burden and damage anything smaller.
Keep apart
Flowering DogwoodKeep trumpet creeper away from small ornamental trees like dogwood - it will climb into and smother them under its heavy growth and shade out their canopy. Give it a dedicated structure well clear of small trees.
ServiceberryAs with any small tree or shrub, trumpet creeper will engulf and smother a serviceberry; its suckers also compete at the root zone. Plant it well away from smaller woody plants it can overwhelm.

Varieties · 5

Flamenco
redlarge-flowerhummingbirdshowy

A showy selection with rich scarlet-red flowers, deeper and redder than the orange species, on a vigorous vine. A bold, fiery-colored choice for a hummingbird garden - and just as vigorous as the type, so contain it accordingly.

Flava (Yellow Trumpet)
yellowhummingbirdaggressiveornamental

A naturally occurring yellow-flowered form ('Flava' or 'Yellow Trumpet') with clear golden-yellow trumpets instead of orange - just as vigorous and aggressive as the species, but a striking softer color. A favorite for gardeners who want the hummingbird vine in yellow.

Indian Summer
hybridorange-redheavy-bloomhummingbirdcompact

A more restrained, heavy-blooming hybrid selection with warm orange-red flowers and a somewhat more compact, less invasive habit than the species - bred for gardeners who want trumpet creeper's flowers and hummingbirds on a slightly more manageable vine.

Madame Galen
hybridsalmon-orangelarge-flowerless-aggressivehummingbird

A popular hybrid (Campsis x tagliabuana, a cross of the native with the Chinese trumpet vine) with very large, showy apricot-to-salmon-orange flowers and a somewhat less rampantly suckering habit than the wild species - often the best choice where you want the look with a bit less aggression. Still vigorous; still prune hard.

Trumpet Creeper (species type)
native-speciesorangeaggressivehummingbirdself-clingingcold-hardy

The wild native vine itself (Campsis radicans) - vigorous, self-clinging by aerial rootlets, and covered in big orange to red-orange trumpet flowers all summer. An unbeatable hummingbird plant and extremely tough, but genuinely aggressive (suckers and self-seeds), so plant it with room and a firm pruning hand.

Grow

Plant in full sun on a strong, freestanding support with room to spread - never on the house. It's wildly easy to grow; the whole skill is containing it, so plan for suckers, self-seeding, and hard pruning from the start.

Growing trumpet creeper is effortless — almost too easy. It thrives in full sun (it flowers best there, though it tolerates part sun), takes almost any soil from clay to sand, and is drought-tolerant, heat-proof, and cold-hardy across a huge range (zones 4-9). It climbs by aerial rootlets that grip like ivy, so it needs no support to twine around; it will attach directly to whatever it reaches. The entire challenge isn't getting it to grow — it's growing it where you want it and nowhere else.

That makes siting the whole game. Plant it on a strong, freestanding structure — a heavy metal arbor, a stout pergola, a chain-link or metal fence, a dedicated post, or a big standing dead tree — with open space around it, and keep it well away from the house, wood siding, gutters, shingles, and small structures its weight and roots can damage. Give it a mowed or hard edge it can't sneak past, or install a root barrier, because it suckers and self-seeds into surrounding ground. Wear gloves when you plant and handle it (the 'cow itch' skin irritation). Do all that thoughtfully at the start, and you get a spectacular, carefree summer bloomer; skip it, and you'll spend years pulling shoots out of the lawn and off the siding.

Care

The care is all about control, not coddling: prune hard every late winter (it blooms on new wood, so you lose nothing), and pull suckers and seedlings all season. Water and feeding are almost never needed.

Trumpet creeper needs essentially no coddling — it's drought-tolerant, unbothered by heat, and largely free of serious pests. Its care is entirely about keeping it in check, and the single most important task is hard annual pruning. Because it flowers on the current season's new growth, you can (and should) cut it back drastically in late winter or early spring, even down to a framework of a few main stems, without sacrificing any bloom — in fact, hard pruning keeps it manageable and flowering heavily. Think of it like pruning a shrub rose: cut it back hard every year as a matter of course.

The second ongoing job is chasing its spread: pull, dig, or mow the root suckers that come up around the plant and the volunteer seedlings from dropped seed, and deadhead spent flowers before they form seed pods if you want to reduce the self-sowing. Staying on top of this from the start is far easier than reclaiming ground later. Beyond pruning and sucker-pulling, it wants almost nothing — don't fertilize (rich soil gives you rampant leafy growth and fewer flowers), and water only during establishment or severe drought. Always wear gloves when pruning or handling it. That's the whole routine: cut it back hard once a year, keep after the suckers, and otherwise enjoy the hummingbirds.

Storage

Nothing is harvested or stored - it's a purely ornamental and wildlife vine, and a skin-irritating one at that. The flowers feed hummingbirds on the vine; no part is gathered for the kitchen.

There's nothing to store from trumpet creeper. It's grown strictly as an ornamental and wildlife vine — its summer trumpet flowers are enjoyed right where they bloom, feeding hummingbirds and pollinators on the vine, and they aren't a cut flower or a food.

No part of the plant is gathered for the kitchen, and there's an extra reason to keep it out of the house: its foliage, flowers, and sap can irritate sensitive skin (the 'cow itch' reputation), so even bringing cuttings indoors isn't worthwhile. The vine's real return is banked in the landscape — a long summer of hummingbird traffic and fast, tough cover on a fence or arbor. If you want more plants, dig a rooted sucker or take a cutting (they root with almost comical ease — see Propagation); that's the only thing worth collecting, and even then, most gardeners are trying to have less of this vine, not more. The long seed pods can be gathered in fall for seed, but self-sown seedlings usually make that unnecessary.

Propagation & seed saving

Almost too easy to propagate: it roots from cuttings, layers, and root suckers with little effort, and self-seeds prolifically. For most gardeners the issue is limiting its spread, not increasing it.

Trumpet creeper propagates itself with enthusiasm, which is a large part of why it spreads. Root suckers come up around any established plant already rooted — the easiest 'propagation' is simply to dig one and move it. Cuttings (softwood in summer or hardwood in winter) root readily, and stems that touch the ground layer on their own. It also grows easily from seed: the long bean-like pods dry and split in fall to release flat winged seeds, which germinate without much fuss and self-sow into abundant volunteers.

The practical reality is the reverse of most plants: with trumpet creeper, the skill isn't making more, it's preventing more. If you do want to propagate a particular plant (say, a named yellow or hybrid form, which won't come true from seed), take a cutting or dig a sucker — both root fast and true. But for the species, assume that once you plant one, it will supply you (and your neighbors) with all the offspring you could ever want via suckers and seedlings, and plan your management around removing them. Wear gloves for all of it (the skin irritation), and never compost seed-bearing prunings where the seed can spread.

Nutrition

Not a food - no part is eaten, and contact can irritate skin. Its value is ecological and substantial: one of the best hummingbird plants in North America, plus nectar for bees and butterflies.

Trumpet creeper isn't a food plant — no part of it is eaten, and its foliage and sap can irritate sensitive skin, so it stays firmly out of the kitchen. What it offers instead is outstanding ecological value, especially for hummingbirds. Its large, nectar-rich, tubular orange flowers are almost perfectly designed for ruby-throated hummingbirds, which are powerfully drawn to it and rely on such native trumpet flowers as fuel through the summer; it's genuinely one of the premier hummingbird plants of eastern North America, which is why it's so widely planted (and tolerated) despite its aggression.

Beyond hummingbirds, the flowers feed bees, butterflies, and hummingbird moths, the vine is a larval host for the trumpet vine sphinx and rustic sphinx moths, and its dense growth gives birds cover and nesting sites. There's an ecological quirk worth knowing: the flowers have nectar so abundant that trumpet creeper is sometimes called a bit of a 'nectar thief's' plant, and various insects work it heavily. So while it gives nothing to the human table, its wildlife value — a summer-long hummingbird buffet above all — is exactly what earns it a place in native and pollinator gardens, provided its spread is managed. Grow it for the hummingbirds, not the pantry.

Medicine

Not a medicinal herb to use - its main 'medical' claim to fame is the skin irritation ('cow itch') it causes on contact. Some minor traditional uses exist, but it's a skin irritant, not a home remedy.

Trumpet creeper's chief connection to health is a cautionary one: the folk name 'cow itch vine' comes from the skin redness and itching its leaves, flowers, and sap can provoke in sensitive people (and reportedly in livestock brushing against it). That makes it a plant to handle with gloves rather than one to reach for as a remedy. There are scattered traditional uses in the record — various parts were used in minor folk ways, and the plant's Asian relative Campsis grandiflora is used in traditional Chinese medicine — but the American trumpet creeper is not a recognized or well-studied medicinal herb.

The honest bottom line is straightforward: don't use trumpet creeper medicinally or ingest any part of it. It's a skin irritant with no established safe home use, its parts aren't a food, and any historical uses were specialized and are not something to reproduce casually. Grow it for its flowers and its hummingbirds, admire it from a (glove-protected) distance when you prune, and leave the medicine cabinet out of it. If you're drawn to native plants with real medicinal traditions, there are far better and safer choices. (Nothing here is medical advice; with this plant, the only sound guidance about eating or dosing it is: don't.)

Troubleshooting

Nearly every 'problem' is the vine's aggression - suckers in the lawn, damage to structures, smothered neighbors, or an unpruned tangle. Poor bloom usually means too much shade or too rich a soil, and the itch is the 'cow itch' irritation.

It's coming up all over the yard: root suckers and self-sown seedlings — the vine's defining habit; pull, dig, or mow them regularly, deadhead to cut seeding, and consider a root barrier. It's damaging my house/gutters/fence: its weight and clinging aerial roots can pry apart structures — get it off house walls, siding, gutters, and shingles and onto a strong freestanding support; pull it off while dormant. It's smothering nearby plants: it will overwhelm smaller shrubs and trees — keep it away from them and prune aggressively. It's an overgrown tangle: prune it hard in late winter or early spring, even down to a framework — it blooms on new wood, so you lose no flowers. Few or no flowers: usually too much shade (needs full sun), too much nitrogen/rich soil (grows leaves not flowers), or a very young plant (it can take a couple of years to start blooming). Itchy rash after handling it: the 'cow itch' skin irritation — wear gloves and long sleeves when pruning, and wash up after. Is it invasive? It's a native (not a non-native invasive), but genuinely aggressive; grown responsibly and contained, it's a valued wildlife plant rather than a menace.

History

A long-familiar native of the eastern woods and fencerows, grown for its hummingbird flowers since colonial times and carried into gardens worldwide - and long nicknamed 'cow itch' and 'devil's shoestring' for its irritating sap and unstoppable spread.

Trumpet creeper is a deeply familiar native of the eastern and southeastern United States, a common sight scrambling up fencerows, roadside trees, and old barns, blazing with orange trumpets in the summer heat. Colonists knew it early — it was cultivated in American and then European gardens from the 1600s and 1700s for its showy flowers and the hummingbirds they drew — and it has since been planted around much of the temperate world, sometimes naturalizing beyond its native range.

Its many folk names tell its story better than any description. 'Hummingbird vine' captures its greatest virtue; 'cow itch vine' warns of the skin irritation from its sap; and 'devil's shoestring' nods to the tenacious, ineradicable roots that let it spring back from any fragment and colonize new ground. That double reputation — glorious hummingbird plant and unkillable spreader — has followed it for centuries and is exactly why it sits in the 'plant with care' category today. It stands as a useful reminder that 'native' does not always mean 'well-behaved': trumpet creeper belongs here and does real ecological good, but it demands the same respect for its vigor that you'd give any aggressive plant.

Growing across climates

Extraordinarily tough and adaptable across zones 4-9: cold-hardy far into the North, heat- and drought-proof in the South, and vigorous (often to the point of weediness) in warm climates where containment matters most.

Trumpet creeper is one of the most climate-tolerant vines you can grow, which is both its strength and the reason it spreads. Zones 4-6 (the North): fully cold-hardy (to roughly -30°F), it dies back less than you'd expect and returns vigorously each summer, blooming reliably in the heat; even here it suckers and seeds, though cold winters modestly slow it. Zones 7-8 (its heartland): extremely vigorous, blooming heavily all summer and spreading enthusiastically — prime hummingbird-vine country where containment is the main task. Zones 9-10 (the warm South): the most aggressive of all, growing and seeding almost year-round; here it can become genuinely weedy and naturalize into surrounding land, so managing its spread matters most.

Everywhere it's drought-tolerant, heat-proof, and unfussy about soil, thriving in tough spots that defeat other vines. The climate lesson is consistent across its range: this isn't a plant you struggle to keep alive but one you work to keep contained, and the warmer and longer the growing season, the more vigilant that containment needs to be. Its toughness is exactly why it's such a dependable native bloomer — and exactly why it carries a Caution.

No grower tips for Trumpet Creeper yet — yours could be the first.

Sign in to share what works in your garden.

Connection interrupted

Reconnecting to GrowSomeFood

Keep this page open. We are trying to restore your garden session.

Attempt of . Retrying automatically.

Still offline

Could not reconnect

Your phone may have switched networks or gone to sleep. Try again when the signal is steady.

Session expired

Reload to continue

This garden session is no longer available on the server. Reloading will start a fresh session.