Lantana is part of Trolley’d’s botanical story, and we use its flowers in drinks. It is also a plant surrounded by conflicting advice. A useful account needs to distinguish the flowers from the fruit and foliage, and separate documented use from evidence about safety.
This field note looks at the research, the food-use reports and the cultural history. It does not establish a safe serving of fresh flowers. Australian poison-information sources continue to warn against ingestion, including the flowers.
Updated 28 September 2026 to reflect Trolley’d’s current use of lantana flowers and distinguish that practice from the findings and limitations of published research.
Trolley’d and lantana flowers
Trolley’d currently uses lantana flowers as a visual cocktail garnish.
That statement describes our practice. It is not a claim that fresh lantana flowers have a universally established safe serving size, nor is it a substitute for food-safety assessment of a particular plant, growing site, preparation or exposure.
A flower used as decoration can still become part of a guest’s food-and-drink experience. That is why this article keeps the practical use visible while being precise about what the existing evidence can and cannot establish.
The research reviewed here does not provide a cocktail-specific exposure study. It does not establish whether a particular fresh flower, flower head, growing condition or drink preparation is safe for every guest.
What the research says about lantana
The evidence is more complicated than the blanket claim that every small exposure produces poisoning, but it is not strong enough to justify a universal safety claim for fresh flowers.
Human exposure records
A 2010 study by Carstairs and colleagues reviewed 641 reported childhood exposures to Lantana camara recorded by the California Poison Control System between 1997 and 2008. Most children had no or minimal symptoms. Reported symptoms included vomiting, abdominal pain, agitation, diarrhoea, mouth or throat irritation, tachycardia, drowsiness, nausea and dilated pupils. No deaths were recorded in the reported series. Read the study on PubMed.
That study is useful because it challenges exaggerated claims that every reported ingestion leads to severe poisoning. But it was a retrospective review of reported childhood exposures. It was not a trial of fresh lantana flowers in cocktails. It does not establish a safe garnish quantity and does not prove that every preparation is harmless.
Edible-flower laboratory research
A 2024 study by Coyago-Cruz and colleagues included Lantana camara in a laboratory collection of edible flowers. The researchers examined composition and biological activity, including antioxidant, antibacterial and antifungal activity. That is relevant botanical and laboratory evidence, but it is not a human oral-safety assessment and does not validate fresh lantana flowers as a cocktail garnish. Read the study in Antioxidants.
Livestock toxicity
Livestock research provides another part of the picture. Studies of lantana toxicity in cattle and sheep show that substantial consumption of some lantana material, particularly foliage, can cause serious illness. Animal species, plant part, dose and exposure route matter. Findings from livestock poisoning cannot be directly converted into either “all lantana is deadly” or “a fresh flower garnish is proven safe”. Read the Brito, Tokarnia and Döbereiner study.
What official poison-information sources say
The Queensland Poisons Information Centre lists Lantana camara as potentially toxic and states that ingestion of flowers, fruits and leaves can cause vomiting, diarrhoea, difficulty breathing and liver failure. It advises seeking urgent medical attention if any part is ingested. Read the Queensland Poisons Information Centre entry.
This is official poison-information guidance. It is not the same thing as a controlled human study of a single flower used as a garnish. It tells readers how the plant is treated for poisoning advice, but it does not quantify the risk associated with every possible exposure.
NSW WeedWise provides identification, weed-management and biosecurity information for lantana. The Hong Kong Hospital Authority Toxicology Reference Laboratory provides clinical toxicology resources and support for suspected plant exposures. See NSW WeedWise and the Hospital Authority Toxicology Reference Laboratory.
If someone has ingested lantana in Australia, contact the Poisons Information Centre on 13 11 26. If the person is unconscious, unresponsive or having difficulty breathing, call 000.
How to recognise Lantana camara
Lantana camara is a flowering shrub in the verbena family, Verbenaceae. It is native to tropical and subtropical regions of the Americas and is now widespread in many warm parts of the world, including Australia.
In Australia, lantana is an invasive plant associated with dense thickets, disturbed land, forest edges and pastures. NSW WeedWise identifies it as a widespread weed and provides guidance for identification and control.
The plant is recognisable by its opposite, rough-textured leaves, often prickly stems and rounded heads of small tubular flowers. Flower heads may contain pink, orange, yellow, red, white or mixed-colour florets.
Identification is useful for botanical observation. It is not, by itself, proof that a plant or plant part is suitable for food or drink.
Lantana berries and the jam question
Lantana berry use is not simply an invented internet story.
A 2024 ethnobotanical survey from Karnataka, India, reports ripe lantana berries being eaten fresh and used to make jams and jellies. That is a published report of food use and deserves to be described accurately rather than dismissed as fraudulent or impossible. Read the Karnataka survey.
It concerns ripe fruit, not fresh flowers. It does not test the finished jam. It does not establish a validated detoxification method. Cooking, preserving or processing must not be presented as proof that toxins are destroyed.
The existence of a food tradition answers one question: whether people have reported using the fruit as food. It does not answer every toxicological question about species, ripeness, dose, preparation, growing conditions or individual susceptibility.
So, is lantana berry jam a myth?
No. Published ethnobotanical literature reports the practice. But a documented food tradition is not a safety guarantee, and this article is not a recipe or clearance to prepare lantana jam.
Folklore and cultural history
Ethnobotanical fieldwork has documented Lantana camara in Afro-Surinamese Winti traditions. In research by van Andel and colleagues, fragrant plants including Lantana camara were recorded as ingredients in swit’ watra, herbal baths associated with strengthening the soul. Read the Winti ethnobotany chapter.
This is a documented cultural belief and practice. It is not evidence of a medicinal effect. It is not evidence that lantana is safe to eat.
Folklore should be handled with care. There is no need to attach unsourced Aboriginal, Greek, Roman or other traditions to lantana simply to make the article sound older or more exotic.
Flower colour and pollination
Lantana flower heads change colour as the florets mature. Research by Mohan Ram and Mathur examined colour changes in Lantana camara and their relationship to floral development and pollination. Read the flower-colour research.
This helps explain why one flower head may contain pink, orange and yellow florets at the same time. The colour pattern reflects development and pollinator signalling in the form studied.
Colour does not establish:
- ripeness
- safety
- toxicity
- a particular edible variety
- suitability for a cocktail garnish
A pink, yellow, orange or white flower is still a lantana flower unless identified otherwise. Colour is an observation, not a safety test.
Does eating lantana control the invasive plant?
No. Eating a flower is not an established weed-control method.
Birds and other animals can disperse lantana seeds after eating its fruit, and the plant can also spread vegetatively. Harvesting flower heads before fruit develops can reduce fruit and seed production on the structures removed, but it will not stop the whole plant producing fruit or spreading. Picking or eating a garnish is not, by itself, an established invasive-plant control method.
Removing petals alone does not necessarily remove the developing fruit or seed-bearing structure.
The same seasonal flower harvest can also suit weddings as botanical confetti. Treat lantana confetti as decorative plant material, not edible confetti: use flower material before fruit develops, keep berries and leafy material out, check the venue’s rules, and collect the confetti afterwards so it is not dispersed into bushland, waterways or neighbouring properties.
Responsible lantana control requires proper identification, removal and disposal methods appropriate to the site and local regulations. Trolley’d’s botanical practice draws attention to invasive plants, seasonal botany and the questions behind ingredients. It should not be confused with a weed-management programme.
Why this plant belongs in a cocktail journal
Lantana is an instructive plant because it sits at the intersection of botany, food culture, folklore, invasive-species management and hospitality.
For Trolley’d, botanical work is about paying attention to place. It is about understanding where ingredients come from, how they are described, what evidence exists and where uncertainty remains.
That approach is central to our sustainable native botanical drinks, foraging education and first-class cocktail activations. A plant story should make the drink more interesting without pretending that curiosity removes the need for judgement.
Explore more ingredients and foraging field notes, cocktail classes, sustainability practices and corporate cocktail activations.
Frequently asked questions
Can lantana flowers be used as wedding confetti?
They can be considered as decorative botanical confetti where the venue permits, but they should be treated as plant material rather than edible confetti. Use flowers before fruit develops, exclude berries and leafy material, keep the confetti away from bushland and waterways, and collect it after the ceremony.
Does Trolley’d use lantana flowers in drinks?
Yes. This article describes Trolley’d’s current practice. The published evidence does not establish a universal safe serving quantity, and Australian poison-information guidance continues to warn against ingestion.
Are lantana flowers scientifically proven safe to eat?
Not on the evidence reviewed here. Their inclusion in edible-flower research is relevant, but it is not a validated human dietary safety assessment.
Is lantana berry jam a myth?
No. Published ethnobotanical literature reports ripe berries being used for jams and jellies. That documents a food tradition, not proof that every berry or preparation is safe.
Does eating the flowers control lantana?
No. Removing flowers may reduce some potential seed production, but eating garnish is not an established invasive-plant control method.
Does removing the flower before drinking prove the drink is safe?
No cocktail-specific exposure study was located. Removing the visible flower does not by itself establish what has or has not entered the liquid.
What should I do if someone has eaten lantana?
In Australia, call 13 11 26 for the Poisons Information Centre. For someone who is unconscious, unresponsive or having difficulty breathing, call 000 immediately.
Can Trolley’d build a botanical experience for an event?
Yes. Trolley’d develops botanical cocktail classes, corporate activations and sustainable hospitality experiences using story, place and aviation-inspired service. Send an event brief.
Sources and editorial scope
- Carstairs SD, Luk JY, Tomaszewski CA, Cantrell FL. “Ingestion of Lantana camara Is Not Associated With Significant Effects in Children.” Pediatrics, 2010. PubMed.
- Coyago-Cruz E et al. “Functional, Antioxidant, Antibacterial, and Antifungal Activity of Edible Flowers.” Antioxidants, 2024. MDPI.
- Bhavana NS, Shrishail, Masarbo RS, Bindu DN. “Ethno botanical survey of wild edible fruits from two selected regions of Karnataka, India.” Journal of Medicinal Plants Studies, 2024, 12(4), 214–223. Original publication.
- Brito MF, Tokarnia CH, Döbereiner J. “The toxicity of diverse lantanas for cattle and sheep in Brazil.” Pesquisa Veterinária Brasileira, 2004. Publication record.
- NSW WeedWise: Lantana camara.
- Queensland Poisons Information Centre: Lantana camara.
- Hong Kong Hospital Authority Toxicology Reference Laboratory.
- Mohan Ram HY, Mathur G. “Flower Colour Changes in Lantana camara.” Journal of Experimental Botany, 1984. Oxford Academic.
- van Andel T et al. “What Makes a Plant Magical? Symbolism and Sacred Herbs in Afro-Surinamese Winti Rituals.” 2013. Source record.
Safety guidance was checked against NSW WeedWise, the Queensland Poisons Information Centre and the Hong Kong Hospital Authority Toxicology Reference Laboratory. This article describes Trolley’d’s current practice, reports published research and cultural records, and marks the limits of the available evidence. It is not a medical consultation, toxicologist certification or safe-serving instruction.