What Pollinators Are Attracted to Lantana?

Lantana attracts a remarkably broad range of pollinators, but butterflies and bees dominate the guest list. Surveys of flower-visiting insects on Lantana camara have found bees accounting for roughly a third of all visits and butterflies close behind at about 28 percent, with wasps, flies, thrips, and other small arthropods filling in the rest. What makes lantana so effective at drawing in this diversity is a combination of visual trickery, chemical signaling, and nectar rewards that work together as a finely tuned advertising system.

Bees and Butterflies Lead the Way

If you watch a lantana bush for any length of time, the two groups you will see most often are bees and butterflies. A study of flower-visiting arthropods on invasive Lantana camara recorded bees at 32 percent of all visits and adult butterflies at 28 percent, making them the most frequent visitors by a wide margin.¹ Wasps, flies, beetles, and various other insects make up the balance. In a related Lantana species, Lantana hypoleuca, researchers recorded 73 pollinator visits during observations, with bees accounting for 56 of them, butterflies 15, and wasps just two.² The pattern is consistent: bees and butterflies do the heavy lifting, though the exact ratio shifts depending on geography, season, and which other flowers are blooming nearby.

Bees tend to work lantana efficiently, moving quickly between florets and picking up pollen as they probe for nectar. Butterflies spend more time per visit but compensate with frequent returns to the same inflorescences. Both groups are effective at transferring pollen between plants, and lantana’s clustered flower heads help: each dome-shaped inflorescence holds dozens of small tubular florets packed tightly together, so a single visitor touches many flowers in one stop.

How Lantana’s Color Changes Direct Its Visitors

One of lantana’s most striking features is the way individual florets change color as they age. In the common wild type, flowers open yellow, shift to orange over the next day or so, and eventually turn red. This is not just decorative. The color change is tightly linked to reward availability: yellow flowers are freshly opened, sexually receptive, and loaded with nectar, while orange and red flowers have largely stopped producing nectar and are past their reproductive prime.³ A similar pattern plays out in other Lantana species: in Lantana undulata, a yellow ring around the corolla fades to white within 24 hours of opening, and this shift tracks with declining stigma receptivity and nectar availability.⁴

Pollinators learn this system fast. Studies with nymphalid butterflies showed that they quickly discriminate between yellow (rewarding) and red (unrewarding) florets when foraging at close range.⁵ Bees visiting Lantana hypoleuca also targeted flowers displaying the yellow guide and ignored those without it, even when they initially approached unrewarding blooms.² The takeaway for both plant and pollinator is straightforward: the color code saves visiting insects from wasting time on empty flowers, and the plant gets its youngest, most fertile flowers pollinated first.

The Billboard Effect

You might wonder why lantana keeps the old, unrewarding flowers on the plant at all. If they have no nectar and no viable pollen, why not drop them? The answer is what researchers call the “billboard effect.” An inflorescence displaying a mix of yellow, orange, and red florets is more conspicuous at a distance than one showing only a few yellow blooms. The multicolored display acts as a large, eye-catching advertisement that draws pollinators in from farther away.³ Once a butterfly or bee arrives, it can read the color code up close and zero in on the yellow florets that still have nectar.

The system works on two scales simultaneously. At long range, the bright patchwork of colors grabs attention more effectively than a cluster of uniformly colored flowers would. At short range, the color differences guide the pollinator to the right florets. Research found that inflorescences with higher ratios of rewarding (yellow) to unrewarding flowers were more attractive at short distances, while the mixed-color display was most attractive at long distances.³ Keeping old flowers on the plant also explains why dead-heading lantana can sometimes reduce pollinator visits in a garden setting: you are trimming away part of the billboard.

Scent Signals That Pull Butterflies In

Color is not the only tool in lantana’s recruitment kit. The flowers produce volatile chemical compounds that butterflies can detect and respond to, even when they cannot yet see the blooms. Research on Heliconius melpomene, a tropical butterfly that regularly visits lantana, found that compounds present in high abundance in the floral scent and exclusive to the floral parts of the plant triggered the strongest responses in the butterflies’ antennae. These include linalool, linalool oxide, and phenylacetaldehyde.⁶ The fact that these compounds come exclusively from the flowers, not from leaves or stems, suggests they evolved specifically to attract pollinators.

Behavioral experiments confirmed the connection. When newly emerged Heliconius butterflies that had never encountered lantana before were given a choice between the plant’s floral scent and its vegetative (leaf) scent, they preferred the floral scent, indicating an innate attraction rather than a learned one.⁷ In practice, this means that even butterflies encountering lantana for the first time are drawn to it by smell before they make visual contact with the flowers. The researchers concluded that while butterflies often rely on visual cues when choosing which specific flower to probe, scent is what initiates and maintains the overall foraging trip.

Why Butterfly Body Shape Matters

Not all butterflies are equally successful at extracting nectar from lantana. The plant’s tubular florets have a specific architecture, and a butterfly’s proboscis length turns out to be a strong predictor of how efficiently it can feed. Research found that butterflies with longer proboscises were more efficient foragers on Lantana camara than those with shorter ones, but only up to a point.⁸ Once the proboscis-to-body-length ratio exceeded roughly 0.88, efficiency actually declined. Butterflies with extremely long proboscises relative to their bodies took longer to handle each flower and encountered more resistance when drawing up nectar.

This helps explain why you tend to see medium-sized butterflies like painted ladies, common buckeyes, and various swallowtails thriving on lantana, while very small skippers and very large species with disproportionately long proboscises may be less frequent or less effective visitors. The flower’s tube length acts as a kind of filter, favoring a sweet spot in pollinator anatomy. For gardeners trying to attract butterflies, this means lantana works best as part of a mixed planting: it will pull in a good range of butterfly species, but adding flowers with different tube depths alongside it can expand the variety of visitors.

Honeybees and Lantana’s Spread in New Territories

In many parts of the world where lantana has become invasive, honeybees play an outsized role in its pollination. Field studies in Queensland, Australia, found that fruit set in Lantana camara was strongly correlated with honeybee abundance. At many sites, especially in southern Queensland, honeybees were the only recorded flower visitors.⁹ This creates what the researchers described as a synergistic interaction between two introduced species: the European honeybee and the Central American weed reinforcing each other’s success in a landscape where neither is native.

The implications are worth pausing over. Where lantana invades and native pollinators are scarce or uninterested, the presence of managed or feral honeybee colonies can be the decisive factor in whether the plant produces viable seed and keeps spreading. Fruit set was actually limited by pollinator abundance at some Australian sites, meaning that if you removed the honeybees from the equation, lantana’s reproductive output would drop substantially. This dynamic is relevant to land managers: in regions where lantana is an unwanted invasive, controlling feral honeybee populations near lantana stands could theoretically reduce seed production, though this is obviously complicated by the many other crops and native plants that also benefit from honeybee pollination.

Tiny Visitors You Might Not Notice

Beyond bees and butterflies, lantana hosts a community of much smaller flower-visiting arthropods that rarely get attention but may still contribute to pollination. Thrips, tiny insects typically less than two millimeters long, were the most frequently found animals inside lantana inflorescences in surveys that physically extracted small arthropods from the flower heads. Their numbers were significantly higher during the dry season than the wet season, and they were flagged as potential pollinators alongside bees and butterflies.¹ Mites were also common residents. While neither thrips nor mites are as efficient at moving pollen between plants as a bee flying from bush to bush, they can transfer pollen between florets within the same inflorescence, potentially contributing to self-pollination.

Flies in the order Diptera also visit lantana flowers and have been documented discriminating between pre-change and post-change florets, suggesting they, too, are responding to the plant’s color-reward system.⁵ Wasps occasionally show up as well, though their visits tend to be sporadic and their contribution to pollination is minor compared to bees and butterflies. The overall picture is of a plant that does not rely on any single pollinator species but instead casts a wide net, drawing in whatever flying insects happen to be present.

Why Pollinator Diversity Matters for Lantana’s Reproduction

Lantana’s generalist strategy is not just a curiosity. It has real consequences for how successfully the plant reproduces. Research on pollinator visitation patterns found that increases in pollinator diversity allowed different visitor types to pollinate the plant in complementary ways, boosting fruit set through what ecologists call functional complementarity.¹⁰ In practical terms, a lantana bush visited by three or four different types of pollinator will often set more fruit than one visited by only one type, even if the total number of visits is the same. Different pollinators handle the flowers differently, contact different parts of the reproductive structures, and visit at different times of day, so they fill in each other’s gaps.

Interestingly, the surrounding plant community also shapes lantana’s reproductive success. Studies on Lantana hypoleuca found that the likelihood of fruit production increased with greater plant species richness in the neighborhood, even though more plant diversity also meant more heterospecific (wrong-species) pollen landing on lantana’s stigmas.² The probable explanation is that a more diverse plant neighborhood draws a more diverse and abundant pool of pollinators to the area, and lantana, with its strong visual and scent signals, captures a healthy share of those visitors. For gardeners, this reinforces the common advice to plant lantana alongside other flowering species rather than in monoculture beds: the richer the surrounding floral community, the more pollinator traffic your lantana will receive.

What Lantana Cultivars Mean for Pollinator Attraction

Most of the research on lantana pollination has been conducted on wild-type Lantana camara and closely related species with their natural color-changing flowers. The dozens of cultivated varieties sold in garden centers vary widely. Some retain the classic yellow-to-red color transition; others have been bred for a single stable color, or for sterility (to prevent invasive spread). If the cultivar you plant does not undergo color change, you lose the billboard effect and the honest signaling system that helps pollinators forage efficiently. That does not mean pollinators will ignore it entirely: bees and butterflies still respond to nectar availability and scent. But research on the color-change mechanism strongly implies that cultivars retaining the natural trichromatic progression will attract the widest range of visitors and keep them coming back most reliably.

Sterile cultivars, which have been developed specifically for regions where lantana is an invasive threat, present a separate question. Some sterile varieties still produce nectar and are visited by pollinators, making them a useful garden plant for supporting butterflies and bees without the risk of the plant escaping into the wild. Others produce little to no nectar, in which case pollinators may visit briefly and then move on. If your primary goal is supporting pollinators, look for cultivars marketed as nectar-rich, and ideally ones that retain some color variation across the inflorescence. The plant’s entire attraction strategy evolved around linking color to reward. The closer a cultivar stays to that ancestral pattern, the better it will function as a pollinator magnet.

Seasonal and Geographic Variation in Visitor Communities

The specific mix of pollinators you see on lantana shifts with season and location. In tropical regions where lantana blooms year-round, butterfly diversity on the plant peaks during warmer months when more species are on the wing. Thrips populations surge during dry periods and decline in the wet season.¹ In temperate zones where lantana is grown as an annual or brought indoors for winter, the pollinator window is obviously shorter, and the visitor community tends to be dominated by whatever generalist bees and butterflies are locally abundant during summer and fall.

Geography also matters because lantana’s native range spans Central and South America, where it coevolved with a specific set of Neotropical butterflies and bees. In its introduced range across Africa, Asia, and Australia, it has recruited entirely different pollinator communities. The Australian honeybee example is a dramatic case, but similar patterns play out wherever lantana has established: local generalist pollinators step in to fill the ecological role of the original Neotropical visitors. Lantana’s flexible attraction toolkit, combining color, scent, and nectar in a package that appeals to a wide range of insects, is precisely why it succeeds as an invasive plant. It does not need its evolutionary partners to show up. Almost any nectar-feeding insect in the neighborhood will do.

1
Tropical Natural History. Flower-visiting Arthropods of the Invasive Weed, Lantana camara L.
2
PubMed Central. Neighbourhood flower diversity increases reproductive success of Lantana hypoleuca Briq (Verbenaceae)
3
Journal of Pollination Ecology. Honest signalling and the billboard effect: how Heliconiid pollinators respond to the trichromatic colour changing Lantana camara L. (Verbenaceae)
4
Flora. Retention of colour-changed flowers increases pollinator attraction to Lantana undulata inflorescences
5
Acta Horticulturae. FLORAL COLOR CHANGES AS CUES FOR POLLINATORS
6
PubMed. Antennal responses to floral scents in the butterfly Heliconius melpomene
7
PubMed. Behavioral foraging responses by the butterfly Heliconius melpomene to Lantana camara floral scent
8
Acta Ecologica Sinica. Role of morphological variables of the visitor butterfly species in relation to their foraging behaviour on Lantana camara: Implication for conservation
9
Weed Research. Synergistic interactions between an exotic honeybee and an exotic weed: pollination of Lantana camara in Australia
10
Ekológia (Bratislava). Temporal Variation in Pollinators’ Visitation of Lantana camara in a Tropical Urban Landscape: Does Butterfly Abundance and Richness Drive the Fruit Set?