SATURDAY SCHEDULE10:15 a.m. to 11:15 a.m. 11:30 a.m. to 12:30 p.m. 12:45 p.m. to 1:45 p.m. 2:00 p.m. to 3:00 p.m. 3:15 p.m. to 4:15 p.m. 6:30 p.m. SUNDAY SCHEDULE10:30 a.m. to 12:00 p.m. 12:30 p.m. to 1:30 p.m. 1:45 p.m. to 2:45 p.m. 3:00 p.m. to 4:00 p.m. SPEAKERSJump to: Lynn Griffith | Alejandro Zuluaga | Fraser Cook | Anesia Jackson | Jos Vanden Abeele | Dr. Tom Croat | Nick Rust | Dana Washington | Joey Santore | Bill Rotolante Lynn GriffithDiagnostic Clinic for Disorders of Aroids Saturday, September 19, 10:15 a.m. to 11:15 a.m.
Join world-renowned tropical plant and soil expert Lynn Griffith for an educational session on the science and chemistry behind plant nutrition. The various disorders of aroids will be discussed, including nutrient disorders, insects, diseases and physiological disorders. The talk will illustrate these problems, discuss their causes, and recommend specific remedial options. Lynn is an expert in the industry, as well as a hands-on consultant, and has been a star class speaker for many facets of the industry from Day Lilies to Palm Trees to farms or anything or anywhere you can think of. Throw a dart on the map of the world and he has probably been there. Awards don't exist for this unique amazing individual. Lynn is unparalleled in his profession and tirelessly and dedicatedly works to help everyone who needs it. We are here to improve and save the agricultural and horticultural communities across the world. Alejandro ZuluagaAroideana Saturday, September 19, 11:30 a.m. to 12:30 p.m.
Bio and full lecture description announced soon. Fraser CookSaturday, September 19, 12:45 p.m. to 1:45 p.m. Bio and lecture topic announced soon. Anesia JacksonBiological Control for Tropical and Ornamental Plants Saturday, September 19, 2:00 p.m. to 3:00 p.m.
Biological control agents (BCAs), such as predatory mites, predatory insects, parasitoid wasps, and entomopathogenic nematodes, are essential tools for sustainable pest management in tropical and ornamental plant production. This presentation will introduce the fundamentals of biological control, discuss how to select the appropriate natural enemies for common greenhouse and tropical plant pests, and examine the environmental, cultural, and chemical considerations that influence their establishment, compatibility, and long-term success. Attendees will leave with practical strategies for integrating biological control into their Integrated Pest Management (IPM) programs to improve pest suppression, reduce pesticide inputs, and produce healthier, more resilient plants. Anesia Jackson is a Technical Sales Representative with BioBee USA, specializing in Integrated Pest Management (IPM) and biological control across a wide range of agricultural systems, including tropical plants, ornamental crops, greenhouse production, food crops, organic agriculture, and cannabis cultivation. She earned her Master of Science in Entomology and Nematology and a Graduate Certificate in Landscape Pest Management from the University of Florida, where she focused on sustainable pest management in commercial horticulture. Anesia works closely with growers to develop biologically based pest management programs that improve crop quality while reducing reliance on conventional pesticides. She is passionate about bridging scientific research and practical crop production through education, collaboration, and practical Integrated Pest Management solutions. Jos Vanden AbeeleCross Sectional Hybridization in Anthurium Saturday, September 19, 3:15 p.m. to 4:15 p.m.
In the world of Anthurium breeding, crossing species within the same section is relatively straightforward, but crossing between sections is where the magic happens. Uninspired by the next dark brown velvet Cardiolonchium cross, breeders quickly run into reproductive barriers, section incompatibilities, and low seed yields that turn ambitious cross sectional crosses into major challenges. Yet, when an intersectional cross does succeed, it unlocks incredible hybrid vigor and combines traits in the most unlikely of combinations. Captain Aroid covers Anthurium cross sectional hybridization's history, science, and trial-and-error hands-on results: the successes, the dead ends, and what was learned along the way. Jos Vanden Abeele, better known to the plant community as Captain Aroid, is a Belgian bio-engineer and breeder based in Ghent. His lifelong passion for plant cultivation began in his grandmother's garden and ultimately led him to graduate with a degree in agricultural bio-engineering from the University of Ghent. In May 2020, Jos founded his company, Best Buds, launching an adventurous path into collecting rare tropicals and advancing European aroid breeding. Today, under the brand name Captain Aroid, he focuses on hybridizing Anthurium, combining scientific precision with hands-on experimentation to create unique, novel cultivars. Driven by a desire to unite collectors and rebuild trust in the hobby, he co-founded Hortikult in 2024. He co-designed its flagship, Plant Provenance, a dedicated community app designed to connect plant enthusiasts, champion authentic plant history, and restore confidence to rare plant collecting. Dr. Tom CroatThe State of South American Aroid Research Sunday, September 20, 10:30 a.m. to 12:00 p.m.
South America holds more aroid species than any other continent, indeed likely more than Asia and Africa together, yet only six genera have been fully revised. These were Chlorospatha, Dracontium, Heteropsis (Lourdes Soares), Monstera (Mike Madison), Syngonium, Rhodospatha and Xanthosoma. With the exception of Heteropsis and Monstera, all were revised by Croat and collaborators. The two large genera, Anthurium and Philodendron, are most seriously in need of a full revision, owing to their size, but some taxonomic work has taken place at the sectional level for both. Anthurium is a good candidate as the world's largest genus and consists of 20 sections, yet only Anthurium sect. Pachyneurium and sect. Semaeophyllium have been revised. Philodendron, the second largest genus, is even more poorly known, at least at the sectional level, with only Philodendron subgen. Meconostigma (Simon Mayo) and subgen. Macrobelium (Cassia Sakuragui) revised. Philodendron subgen. Pteromischum was mostly revised by Mike Grayum. This presentation will also discuss the future work that needs to be done to bring the knowledge of South American aroids up to the level of those in Central America. Thomas B. Croat, Ph.D., is the P.A. Schulze Curator of Botany at the Missouri Botanical Garden, where he leads the Latin America program. He earned his B.A. from Simpson College in 1962 and his M.A. and Ph.D. from the University of Kansas in 1966 and 1967, and he serves as a Faculty Associate of Biology at Washington University in St. Louis and as an Adjunct Associate Professor at both Saint Louis University and the University of Missouri-St. Louis. His research covers the systematics, ecology and horticulture of Neotropical Araceae, the floristics of the family across the Neotropics, and the development of Lucid keys to the aroid genera. His published work runs from 1972 to the present, spanning a career at the Garden that covers roughly the same years the International Aroid Plant Society, Inc. doing business as IAS, has existed. In that time Croat and his collaborators completed revisions of every aroid genus in Mexico and Central America, about 850 species in all, and described and published 1,700 new species. A further 1,800 new species have yet to be published, many of them in large revisions that are not yet completed. The monographs include Syngonium (1981), Anthurium of Mexico and Central America (1983 and 1986), Anthurium sect. Pachyneurium (1991), Philodendron subgen. Philodendron for Mexico and Central America (1997), Dracontium and Dieffenbachia (2004), and Chlorospatha (2015), with revisions of Monstera, Rhodospatha and Spathiphyllum published in 2024. In South America, the completed revisions of Chlorospatha, Dracontium, Syngonium, Rhodospatha and Xanthosoma are the work of Croat and his collaborators. Nick RustIntro to Geophytic Aroids Sunday, September 20, 12:30 p.m. to 1:30 p.m.
Bio and full lecture description announced soon. Dana WashingtonFrom the Rainforest Floor to Your Living Room Shelf: Practical Plant Care Insights From The Tropical Habitats They Call Home Sunday, September 20, 1:45 p.m. to 2:45 p.m.
Dana Washington is a plant educator, speaker, and the creator behind Leafy Diva, a social media brand followed by more than 300,000 plant enthusiasts across Instagram, TikTok, Facebook, YouTube, and the Chinese social media platform Xiaohongshu (RedNote). Known for her practical approach to houseplant care, Dana has built a reputation for breaking down plant care into honest, accessible lessons that resonate with both beginners and experienced collectors. Connecting indoor plants to their natural habitats, Dana also travels to the tropical regions where many popular houseplants originate. Through visits to rainforests, botanical institutions, and commercial growers, she gives her audience a closer look at the habitats these plants call home while encouraging a greater appreciation for the ecosystems that sustain them. Join Dana Washington as she shares firsthand observations from the tropical growing regions where many of our favorite houseplants naturally thrive. Comparing tropical houseplants growing in their native habitats with the way we grow them indoors can change the way you think about everyday care, including how you support and display them. Rather than recreating the rainforest in your living room or memorizing care tips, you’ll learn how to better understand the plants you already own, helping you make more informed decisions about how you grow them. You’ll leave with a fresh perspective and practical lessons you can immediately apply to your collection. AROIDS AFTER DARKSaturday, September 19, in the Blue Ribbon Room. Doors 6:30 p.m. An aroid-focused menu, guest speakers, the Aroid Awards, and a live auction. Aroids After Dark is ticketed separately from expo admission and seating is limited. Joey SantoreAroids After Dark, Saturday, September 19 Bio and talk topic announced soon. Fraser CookAroids After Dark, Saturday, September 19 Bio and talk topic announced soon. WORKSHOPSWorkshops are ticketed separately from expo admission and seats are limited. Bill RotolanteMoss poles workshop Sunday, September 20, 3:00 p.m. to 4:00 p.m. Description announced soon. |
MEET OUR PAST PRESENTERS & HOSTS!We’re grateful to the incredible speakers, presenters, and workshop leaders who shared their expertise at the 2025 IAS Tropical Plant Expo. From inspiring talks to hands-on workshops and our members-only Dinner & Auction, every session was designed to grow your passion and connect you with the aroid community. |
AGRISTARTS - Founded in 1984, AgriStarts is a family-owned wholesale tissue culture company specializing in indoor foliage, edibles, landscape plants, natives, and other specialty varieties. Based in Florida, the company produces starter plants using advanced micropropagation techniques. Its environmentally controlled greenhouses support large-scale, true-to-type production, with operations designed to recapture water and fertilizer. AgriStarts supplies plant material to a wide range of horticultural markets.
DR. MONICA CARLSEN -
A Research Scientist at the Missouri Botanical Garden in St. Louis, Missouri, USA. Her research focuses on understanding the diversification of the genus Anthurium. She has been working with this group for 20 years, since she was the recipient of the International Aroid Society’s Dr. Monroe Birdsey Memorial Award for Young Researchers in Araceae in 2003. Dr. Carlsen is also particularly interested in training the next generation of aroid researchers by providing internship opportunities and mentorship to students interested in the family.
LUCAS GARCIA - Lucas Garcia is a devoted horticulturist and has served as the Araceae family curator at the Amazon Spheres greenhouse since 2021. His passion for aroids began soon after he earned his Bachelors of Science in Plant Biology from the University of Washington in 2018. While he is still a relatively new face in the International Aroid Society, he is excited to be more involved and help revitalize the West Coast Chapter. Lucas maintains an Araceae collection of more than 2,000 plants from over 600 accessions. Some of his favorite genera to cultivate include Amorphophallus and Anthurium. Additionally, he designs themed aroid displays, leads educational workshops, and collaborates with other horticulture experts and aroid enthusiasts to acquire new species for The Spheres and share plant materials to advance aroid conservation and research.
LYNN GRIFFITH - Lynn is an expert in the industry, as well as a hands-on consultant and has been a star class speaker for many facets of the industry from Day Lilies to Palm Trees to farms or anything or anywhere you can think of! Throw a dart on the map of the world- he has probably been there! Awards don’t exist for this unique amazing individual. Lynn is unparalleled in his profession and tirelessly and dedicatedly works to help everyone who needs it. We are here to improve and save the agricultural and horticultural communities across the world.
JASON MARK HUGHES - Araceae researcher, enthusiast and curator with a focus on pendent Anthurium species. Jason Hughes has lived for twenty years in Uvita, Costa Rica where he curates exotic species from his trips into habitat. He discovered Monstera cedenoi and was a co-author on the paper describing it.
LESTER KALLUS - Lester Kallus discovered the International Aroid Society in the early days of web surfing and joined in 1997. He attended his first International Aroid Conference at the Missouri Botanical Garden in 1999 and his first Miami Show & Sale in 2001, missing only two since then during the pandemic. Lester has served multiple terms on the IAS Governing Board and has held the roles of president, secretary, treasurer, and committee member. He became layout editor of the IAS Newsletter in 2021 and currently serves as both the managing and layout editor. In 2022, he also took on the role of layout editor for Aroideana.
BROOKE LOPEMAN - Brooke Lopeman is Chair of the IAS Website Committee and serves on several others. She started growing aroids indoors in downtown Chicago after her partner got her hooked, and quickly became interested in understanding their native habitats to best care for them—that curiosity led her to the IAS! When not digging into spreadsheets in her day job, Brooke enjoys helping grow the society and supporting IAS’s mission through behind-the-scenes work and efforts to preserve its resources.
CASS MARION - Cass is a passionate aroid lover with a soft spot for Anthuriums—her favorite being her fabulous Red Crystallinum. She’s currently working on her own hybrids in hopes of one day seeing her creations in collections around the world. New to the International Aroid Society, Cass is excited to dive deeper, connect with fellow enthusiasts, and travel the world to see (and help protect) these plants in their natural habitats.
DREW MARTINEZ - Drew Martinez is the founder of Carnivero, a carnivorous and tropical plants nursery based in Austin, TX. With a background in optical physics and biology from Stanford University, Drew brings a science-driven approach to horticulture. His interest in carnivorous plants and other amazing botanicals spans 3 decades and has included field work studying wild subjects and traveling to learn from growers around the world. At Carnivero, he focuses on cultivating rare plants through tissue culture and responsible practices, with the goal of making unique species more accessible while helping to conserve their wild counterparts.
MARIE NOCK - Marie and her husband Steve owned and operated Ree Gardens for fifty years. They were primarily collectors of rare and unusual tropical plants but enjoyed propagating and hybridizing as well, so their customers were able to find plants that weren’t otherwise available. Both were charter members of the International Aroid Society.
BILL ROTOLANTE - William “Bill” Rotolante is a lifelong member of the International Aroid Society (IAS), serving in numerous leadership roles, including Events Chair, Vice President, and currently President. A second-generation nurseryman from South Florida, Bill owns Silver Krome Gardens Inc., one of North America's largest producers of rare Aroids. His nursery houses many plants in the IAS collection and has raised thousands of dollars for the IAS charitable contribution fund. Bill’s expertise in Anthurium breeding was featured in the Aroidiana publication. Beyond the IAS, he has served as President of the Miami-Dade Chapter of the Florida Nursery, Growers and Landscape Association (FNGLA), a Farm Bureau Board Member, and on the Young Nurseryman’s Advisory Board for Farm Credit of Florida. His passion for Aroids has made him a leader in his industry as he tries to foster this same love in the newer generations of Aroid enthusiasts.
DAVID RULAND - David Ruland, Greenhouse Manager, has been employed at the Atlanta Botanical Garden for over 26 years. Originally working in the Tropical Conservatory for a number of years, he has been looking after the Greenhouse Collections since 2010. He has an affinity for Tropical Conifers, Ferns, Gesneriads and first and especially foremost, the Aroids.
Barry Schwarts is a longtime International Aroid Society member and supporter with 50+ years as a collector, breeder, and propagator of rare and unusual aroids and foliage.
LIANA STRODE - Liana Strode is the founder of Salad Beard Farms in Apopka, Florida, which grew from her love of rare and variegated plants and the joy of sharing them with others. An IAS volunteer and dedicated member of this year’s Event Committee, she’ll be conducting interviews for the International Aroid Society at the Tropical Plant Expo—speaking with experts, growers, fellow plant lovers, and more. Follow the International Aroid Society and Salad Beard Farms to catch interviews and highlights from the Tropical Plant Expo!
TYLER THRASHER - With an undying love for nature and its respective curiosities, there are few things Tyler’s brain isn’t obsessing over. Between his pursuits to crystallize the world, opalize everything, and hunt down some of the realm’s most unique plants, his passion to combine art and science every step of the way is his fire and fuel. Chances are if you catch Tyler at a party, he’ll talk your ear off about exploring caves, growing minerals in his lab, playing Dungeons and Dragons, hybridizing new plants, electronic music, the importance of self compassion, and just how amazingly beautiful and mysterious this whole wide universe is. Tyler has a wide range of projects under his belt including but not limited to crystallizing insects, creating some of the world’s first and only opalized insects and flowers, hybridizing plants and creating new cultivars, capturing the natural world through illustration, creating a series of scientific and strange alchemy inspired toys, and a few published books including “Th
ROBERT WAINBLAT - Robert Wainblat is based in Boston, Massachusetts, and has been growing aroids for over six years, with a particular focus on Alocasia. He joined the International Aroid Society Board of directors in 2022 and is the creator of Aroidpedia, an online resource dedicated to aroid research, history, and cultivation. Outside the aroid world he is passionate about photography, data visualization, and baking.
RON WEEKS - Ron's interest in aroids ignited when he began work at Fantastic Garden in 1972. Two youngsters of that time, Ron and Gary Antosh, instigated the adults to create the International Aroid Society. GIANT leaf aroids are his favorite.
| MEMBERS DINNER & AUCTION | SATURDAY 7PM–11PM | FIU GRAHAM CENTER BALLROOMS
Experience the IAS’s most anticipated evening—featuring a tropical dinner menu, lively paddle auction, and exceptional, one-of-a-kind aroids and other plants generously donated by members, vendors, and supporters of IAS. Along with these plants, bid on unique items including a one-of-one print and a signed copy of Deni Bown’s new book, Aroids: Plants of the Arum Family, 3rd Edition. Throughout the evening, hear from leading experts as they share their work with aroids in world-class botanical collections. —GET YOUR TICKETS TODAY!
MEMBERS DINNER & AUCTION | SATURDAY 7PM–11PM | FIU GRAHAM CENTER BALLROOMS
Join us for an exclusive conversation, Collections Under Glass: A Discussion of the Aroids at Botanical Gardens, with botanical garden experts David Ruland (Atlanta Botanical Garden) and Lucas Garcia (Amazon Spheres). They’ll share insights on cultivating, curating, and caring for aroids in specialty collections. | Plus: enjoy a tropical dinner and live auction of rare aroids.—GET YOUR TICKETS TODAY!
MEMBERS DINNER & AUCTION | SATURDAY 7PM–11PM | FIU GRAHAM CENTER BALLROOMS
Experience the IAS’s most anticipated evening—featuring a tropical dinner menu, lively paddle auction, and exceptional, one-of-a-kind aroids and other plants generously donated by members, vendors, and supporters of IAS. Along with these plants, bid on unique items including a one-of-one print and a signed copy of Deni Bown’s new book, Aroids: Plants of the Arum Family, 3rd Edition. Throughout the evening, hear from leading experts as they share their work with aroids in world-class botanical collections. —GET YOUR TICKETS TODAY!
MEMBERS DINNER & AUCTION | SATURDAY 7PM–11PM | FIU GRAHAM CENTER BALLROOMS
Join us for an exclusive conversation, Collections Under Glass: A Discussion of the Aroids at Botanical Gardens, with botanical garden experts David Ruland (Atlanta Botanical Garden) and Lucas Garcia (Amazon Spheres). They’ll share insights on cultivating, curating, and caring for aroids in specialty collections. | Plus: enjoy a tropical dinner and live auction of rare aroids.—GET YOUR TICKETS TODAY!
MOONBEAM FLORA WORKSHOP: CREATE YOUR OWN GLOW IN THE DARK FLOWER | SUNDAY 12:20PM-1:50PM | Join Tyler Thrasher for a hands-on session where you’ll craft your own glow-in-the-dark dried flora, explore phosphorescence, and leave with a luminous botanical creation—GET YOUR TICKETS TODAY!
MOONBEAM FLORA WORKSHOP: CREATE YOUR OWN GLOW IN THE DARK FLOWER | SUNDAY 12:20PM-1:50PM | Join Tyler Thrasher for a hands-on session where you’ll craft your own glow-in-the-dark dried flora, explore phosphorescence, and leave with a luminous botanical creation—GET YOUR TICKETS TODAY!
MOONBEAM FLORA WORKSHOP: CREATE YOUR OWN GLOW IN THE DARK FLOWER | SUNDAY 12:20PM-1:50PM | Join Tyler Thrasher for a hands-on session where you’ll craft your own glow-in-the-dark dried flora, explore phosphorescence, and leave with a luminous botanical creation—GET YOUR TICKETS TODAY!
MOONBEAM FLORA WORKSHOP: CREATE YOUR OWN GLOW IN THE DARK FLOWER | SUNDAY 12:20PM-1:50PM | Join Tyler Thrasher for a hands-on session where you’ll craft your own glow-in-the-dark dried flora, explore phosphorescence, and leave with a luminous botanical creation—GET YOUR TICKETS TODAY!
MOONBEAM FLORA WORKSHOP: CREATE YOUR OWN GLOW IN THE DARK FLOWER | SUNDAY 12:20PM-1:50PM | Join Tyler Thrasher for a hands-on session where you’ll craft your own glow-in-the-dark dried flora, explore phosphorescence, and leave with a luminous botanical creation—GET YOUR TICKETS TODAY!
MOUNTING AROIDS FOR VERTICAL GROWING | SUNDAY 3PM-4PM | Join IAS President Bill Rotolante for a step-by-step workshop to mount aroids for vertical display—perfect for home, patio, or yard. Receive a plant and plaque, learn his techniques, and take home your finished piece—GET YOUR TICKETS TODAY!
MOUNTING AROIDS FOR VERTICAL GROWING | SUNDAY 3PM-4PM | Join IAS President Bill Rotolante for a step-by-step workshop to mount aroids for vertical display—perfect for home, patio, or yard. Receive a plant and plaque, learn his techniques, and take home your finished piece—GET YOUR TICKETS TODAY!
MOUNTING AROIDS FOR VERTICAL GROWING | SUNDAY 3PM-4PM | Join IAS President Bill Rotolante for a step-by-step workshop to mount aroids for vertical display—perfect for home, patio, or yard. Receive a plant and plaque, learn his techniques, and take home your finished piece—GET YOUR TICKETS TODAY!
MOUNTING AROIDS FOR VERTICAL GROWING | SUNDAY 3PM-4PM | Join IAS President Bill Rotolante for a step-by-step workshop to mount aroids for vertical display—perfect for home, patio, or yard. Receive a plant and plaque, learn his techniques, and take home your finished piece—GET YOUR TICKETS TODAY!
INTRODUCTION TO TISSUE CULTURE WITH AGRISTARTS | SATURDAY 1PM-3PM | Join Karina and Yessinia from AgriStarts for a beginner-friendly session on tissue culture (micropropagation). Learn how to take an explant, transfer it to growth media, and demystify the plant cloning process—GET YOUR TICKETS TODAY!
INTRODUCTION TO TISSUE CULTURE WITH AGRISTARTS | SATURDAY 1PM-3PM | Join Karina and Yessinia from AgriStarts for a beginner-friendly session on tissue culture (micropropagation). Learn how to take an explant, transfer it to growth media, and demystify the plant cloning process—GET YOUR TICKETS TODAY!
INTRODUCTION TO TISSUE CULTURE WITH AGRISTARTS | SATURDAY 1PM-3PM | Join Karina and Yessinia from AgriStarts for a beginner-friendly session on tissue culture (micropropagation). Learn how to take an explant, transfer it to growth media, and demystify the plant cloning process—GET YOUR TICKETS TODAY!
INTRODUCTION TO TISSUE CULTURE WITH AGRISTARTS | SATURDAY 1PM-3PM | Join Karina and Yessinia from AgriStarts for a beginner-friendly session on tissue culture (micropropagation). Learn how to take an explant, transfer it to growth media, and demystify the plant cloning process—GET YOUR TICKETS TODAY!
INTRODUCTION TO TISSUE CULTURE WITH AGRISTARTS | SATURDAY 1PM-3PM | Join Karina and Yessinia from AgriStarts for a beginner-friendly session on tissue culture (micropropagation). Learn how to take an explant, transfer it to growth media, and demystify the plant cloning process—GET YOUR TICKETS TODAY!
INTRODUCTION TO TISSUE CULTURE WITH AGRISTARTS | SATURDAY 1PM-3PM | Join Karina and Yessinia from AgriStarts for a beginner-friendly session on tissue culture (micropropagation). Learn how to take an explant, transfer it to growth media, and demystify the plant cloning process—GET YOUR TICKETS TODAY!
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