Unseasonal floods, unexpected frosts, and shifting bloom patterns threaten the world’s most fragile agricultural sector
Flower farmers across six continents are confronting an unprecedented reality: the stable climatic conditions that their industry was built upon over generations have begun to瓦解 in ways that defy both historical precedent and scientific prediction. From Kenyan rose farms watching their primary water source rise uncontrollably after decades of drought, to Dutch tulip growers losing nearly a tenth of their bulbs to relentless winter rain, to Indian marigold cultivators coining a new term—”wet drought”—to describe disasters that existing relief programs cannot recognize, the global flower trade is experiencing what may be its most severe systemic shock in recorded history.
Rising Lake, Falling Margins in Kenya’s Rift Valley
Lake Naivasha, a freshwater body located roughly ninety minutes from Nairobi’s international airport, has long been the heart of Kenya’s multibillion-shilling flower industry. The lake’s proximity to transport infrastructure allows roses cut on Tuesday morning to grace London vases by Wednesday afternoon, a logistical advantage that helped make Kenya one of the world’s top rose-exporting nations.
For years, the dominant narrative surrounding Naivasha centered on drought. Rose cultivation requires between seven and thirteen liters of water per stem, and the industry’s rapid expansion raised urgent questions about sustainability. Rivers feeding the lake, including the Gilgil and Karati, dried up entirely during dry spells, and by 2022 water levels were dropping by half a meter within days.
Then the pattern reversed.
Since roughly 2015, Lake Naivasha has been rising—not receding. Unusually heavy rainfall in the Aberdare mountain range, which feeds the lake’s underground streams and rivers, has pushed water levels steadily upward in a trend that has startled hydrologists and devastated shoreline communities. Lina Jamwa, head of membership engagement at the Kenya Flower Council, confirmed that multiple farms have watched the lake encroach onto their production areas, disrupting operations. Precise figures for lost farmland remain elusive, reflecting how quickly the ground has shifted beneath the industry.
The impact extends beyond commercial operations. Ngome and Rose Wafula, a family living near the lake, told the Associated Press they woke one October morning to find their home surrounded by roughly a foot of water that had crept in overnight. The family, now displaced to an abandoned school, illustrates what Jamwa describes as “climatic whiplash”—a landscape built for one set of water conditions now forced to survive an entirely different, unpredictable regime.
Higher average temperatures and shifting rainfall patterns are disrupting growth cycles that rose varieties were specifically bred to follow. New pests, including the False Codling Moth, have entered greenhouses that once excluded them through climate alone. Patrick Mbugua, general manager of Wildfire Flowers Kenya, described “increased disease pressure due to unusual weather patterns,” noting that excessive heat triggers pest surges while unusually low temperatures increase fungal infections and reduce yields.
Ethiopia’s Shrinking Lake Mirrors Eastern Africa’s Water Crisis
Nine hundred miles northeast of Naivasha, a similar story unfolds around Lake Ziway in Ethiopia’s Rift Valley. Ethiopia’s floriculture industry, younger than Kenya’s but growing rapidly, has clustered along Ziway’s shores where volcanic soils and equatorial light once guaranteed near-ideal conditions requiring no artificial heating.
Frank Ammerlaan, a second-generation Dutch rose grower, arrived in Ethiopia in 2006 to establish AQ Roses, which now exports over one hundred million stems annually under the Rosa Plaza brand. Ammerlaan acknowledges that the industry’s climate math has become precarious even in a country whose natural advantages once seemed unbeatable.
Lake Ziway’s water level has dropped by approximately one meter over two decades, and its surface area has shrunk by an estimated eight percent since 2000. Fish populations have declined, surrounding wetlands have dried, and local communities report growing water scarcity. According to a 2024 analysis by Christian Aid, roughly fifty-nine percent of all internationally traded roses originate from just five Global South nations—Kenya, Ethiopia, Uganda, Ecuador, and Colombia—all confronting escalating extreme-weather risk.
Temperature Swings Threaten South America’s Valentine’s Day Rush
Ecuador’s rose industry, centered on the volcanic Cayambe and Tabacundo valleys north of Quito at altitudes between 2,800 and 3,000 meters, depends on a narrow band of stable conditions: constant equatorial daylight, cool nights, and intense highland sun that produce roses prized for exceptionally long stems and vivid blooms.
Colombia’s flower growers have learned the consequences of volatility firsthand. In 2010, an unusually severe cold snap struck the savanna surrounding Bogotá weeks before Valentine’s Day—the single most critical date on the global flower calendar, responsible for roughly twelve percent of Colombia’s annual sales. Workers at Unique Collection Farms sprayed water over rose beds in a desperate attempt to release latent heat as the water froze, but significant holiday production was lost. “If you don’t do well in Valentine’s it’s a lost year,” summed up Fernando Arenas, manager of the flower company El Redil.
That same year brought the worst rainy season Colombia had experienced in sixty years, triggering widespread flooding and driving up costs as growers fought fungal disease and rot. Production losses among rose growers during the subsequent La Niña episode are estimated between five and fifteen percent.
More recently, the 2024 El Niño cycle brought record-high temperatures and dry conditions that pushed roses to bloom earlier than intended, disrupting carefully timed harvest schedules. “El Niño has definitely arrived with clear blue skies and high-temperature records across Colombia,” said Elkin Farfán, a planning manager at Phytotech. Farms like Passion Growers, located west of Bogotá, compress approximately fifteen percent of annual rose production into a ten-to-fifteen-day harvesting sprint running twenty-four hours daily with a thousand workers on shift. “We need to harvest approximately fifteen percent of our whole year’s production in a ten to fifteen day period,” explained farm manager Moises Croitoru, describing a logistical operation with essentially no margin for freeze, flood, or heatwave.
Dutch Tulip Fields Drowning in Warmer, Wetter Winters
Arjan Smit has spent his entire adult life among tulips, cultivating a family business his grandfather started in 1940 in Spierdijk, North Holland. His fields still produce the postcard image associated with the Netherlands, but Smit describes how that image is fraying. “The climate has changed. We can feel that,” he told a reporter in 2024. “Last year, it was just raining, raining, raining, and you can see the result.”
Walking his rows, Smit points to muddy gaps where entire tulips drowned. “Last winter, it was very wet. In total in our sector, we lost around eight to nine percent of the bulbs in the field. They were killed by water. And we planted four percent fewer. That means we have lost a minimum of thirteen percent of the new bulbs for next year.”
A warmer atmosphere holds more water vapor, translating directly into wetter winters across northwestern Europe even as hotter, drier stretches intensify in spring and summer—a difficult combination for temperature-sensitive tulips. Bulbs require long, cold, relatively dry winters for proper development; without these conditions, stems come up short, flowers emerge unevenly, or fail to bloom entirely.
“When I started this work around thirty years ago, we had to water the fields two to four times in a spring season,” Smit said. “In the last ten years, sometimes we have to water every week. That means ten times. It’s much more expensive.”
Manuel Aguirre-Bolaños, a biologist studying tulip bulb development at Utrecht University, confirmed that tulips require long, dry winters to form flowers properly. Annual temperatures in the Netherlands have risen by roughly 2.3 degrees Celsius since 1901, measurably reducing frost days that tulips depend upon.
The consequences have rippled into global supply. The autumn of 2023 brought unusually heavy rainfall across the Netherlands, delaying bulb planting and leaving them vulnerable. Persistent spring rain and hailstorms promoted disease that was not fully visible until harvest arrived in mid-2024, by which point yields had fallen substantially. De Vroomen Garden Products, a major wholesale supplier, reported it could source only about eighty percent of required tulip bulbs; industry analysts revised initial projections from twenty percent shortfall to roughly thirty percent as full damage became clear.
Indian Marigold Farmers Face ‘Wet Drought’ and Festival Losses
In India, weather disruptions strike with particular cruelty against a ritual calendar that leaves growers almost no room to absorb a bad week. Marigolds occupy a specific place in Indian life—strung into garlands for weddings, temples, and festivals including Dussehra, Diwali, and Onam—grown by hundreds of thousands of smallholder farmers as a secondary cash crop.
In autumn 2025, days of unrelenting, unseasonal rain destroyed large stretches of the marigold crop near Bhiwandi in Maharashtra’s Thane district just as flowers approached festival-season harvest. Standing water turned blooms black and rotten; humidity spread a fungal blight farmers call karpya rog. “The flowers were just about to bloom when the rain came,” one grower reported. “Within a few hours, everything was destroyed.”
Ganesh Patil, farming two acres of marigold, said the rains “completely wiped out” his crop. Traders refused to buy what remained, leaving farmers unable to recoup basic cultivation costs. Growers near Pune described making desperate journeys to salvage ruined harvests. One farmer from Karmala recounted planting marigold on two acres, watching heavy rain destroy most of it. “I managed to bring four tons of flowers through knee-deep water and arrived in Pune by train at midnight,” he said. “Even now, I am getting only fifty rupees per kilogram. People are not buying.”
His phrase—”wet drought”—captures something distinctly modern: the old vocabulary of agricultural disaster, built around too much rain or too little, increasingly fails to describe conditions that combine the worst features of both, arriving out of season and concentrated into destructive bursts.
Wildfire Threatens California’s Flower Belt
In December 2017, the Thomas Fire—then one of California’s largest wildfires in history—swept toward Carpinteria, home to a concentrated cluster of flower farms at the foot of the Santa Ynez Mountains. Dani Hahn, owner of Rose Story Farm, watched firefighters set controlled backburns to stop the advancing blaze. “We know we live in a desert climate and are prone to wildfires, but I don’t think anyone could expect the scope of this,” she said afterward.
Nearby, West Orchids Inc., founded by Dutch families who settled in the valley specifically to grow flowers, watched flames advance to within half a mile of its thirty-acre operation, forcing evacuation and halting production. Kasey Cronquist, then chief executive of the California Cut Flower Commission, noted that Carpinteria’s flower farms together employ roughly eight hundred people and generate more than two million dollars in daily economic activity. While the farms mostly survived, shipping interruptions proved unavoidable. “These aren’t crops that can just hang on trees and wait until this thing passes,” Cronquist said. “It’s a very perishable product that just needs to keep moving.”
California’s subsequent decade has brought increasingly severe wildfire seasons driven by prolonged drought and hotter temperatures—the same atmospheric shift responsible for flooding in Colombia, rising lakes in Kenya, and wet winters undermining Dutch tulip fields.
Japan’s Cherry Blossoms Arrive Two Weeks Early
Japan’s Meteorological Agency has tracked cherry blossom flowering dates since 1953, and the trend line moves in one direction: earlier. Tokyo’s cherry trees, which bloomed on average around March 29 between 1961 and 1990, shifted to an average bloom date of March 24 by 1991-2020—movement of roughly 1.2 days per decade. Kyoto’s blossoms reached full bloom on March 26 in a recent year, ten days ahead of historical average and the earliest since formal tracking began.
Historical research reaching back centuries through literary and diary records found that peak flowering in Kyoto has advanced by roughly two weeks compared with the 1820s, when full bloom typically arrived in mid-April. Some recent years registered the earliest peak bloom dates in twelve hundred years of recorded observation.
“Our studies have shown that the start of cherry blossom season is closely linked with the average temperature in February and March,” said Shunji Ambe of the Japan Meteorological Agency. Elizabeth Wolkovich, an associate professor at the University of British Columbia, called Japan’s cherry blossom record “one of the most powerful available windows into the pace of planetary warming.”
The mechanism carries an unsettling twist. Cherry buds form during summer, enter a dormant state broken only by sufficient cold winter exposure, then rise spring warmth drives bloom. Warmer winters do not simply produce earlier bloom everywhere—in places where winters no longer get cold enough to break dormancy, flowering can be delayed or prevented entirely. Researchers at Japan’s International Research Center for Agricultural Sciences found that Somei-Yoshino cherry trees on Hachijojima bloomed on the same date as trees on Aomori, roughly 860 kilometers north—an equivalence attributed to shifting balance between cold exposure and subsequent heat. Their models suggest that under continued warming, some cherry varieties could eventually stop flowering altogether at the southern limits of their current range.
Kunming’s Eternal Spring Encounters Frost
In Dounan, on the outskirts of Kunming in China’s Yunnan province, the scale of the modern flower trade becomes almost abstract. Yunnan supplies roughly seventy percent of all commercially sold flowers in China, produced by an estimated eight hundred thousand farmers across seventy thousand hectares. Wholesale deals at Dounan reportedly close, on average, once every four seconds.
The region’s reputation as the “City of Eternal Spring” rests on a genuinely rare high-altitude climate: mild year-round temperatures, roughly 2,200 hours of annual sunshine, and modest, evenly distributed rainfall. Even this favorable climate, however, has proven vulnerable to disruption.
In late November 2025, Yunnan experienced an unusually long rainy season followed immediately by an early, severe frost. Temperatures fell as low as minus 2.2 degrees Celsius, with sub-zero readings recorded inside greenhouses. Major growing districts reported extensive damage, hitting smaller and mid-sized growers hardest. Wholesale prices for some rose varieties rose by roughly twenty renminbi per bundle in subsequent weeks.
An Industry Learning to Improvise
No single event amounts to proof of a planetary trend; weather has always been variable, and flower farming has always been a gamble. What is harder to dismiss is the pattern emerging from stacking these stories side by side: a Kenyan lake reversing direction, displacing farms once blamed for depleting it; an Ethiopian lake shrinking as the flower economy built along its shore grows; Colombian growers racing against unprecedented heat after desperate measures against freeze; a Dutch farmer watering ten times a season instead of two to four and still losing bulbs; Indian marigold farmers coining new vocabulary for disaster; a Californian rose farm scorched by historic wildfire; cherry blossom records spanning twelve centuries broken repeatedly within a single decade; a Chinese trading hub blindsided by frost.
Growers are adapting in the ways available: solar power and crowd-financed irrigation in Kenya, biological pest control in Ecuador, drought-tolerant plant trials in Dutch gardens, disaster relief appeals from Indian cooperatives, fire-preparedness infrastructure in California, and accelerated development of domestically bred, climate-resilient flower varieties in Yunnan.
None of these responses resolve the underlying problem. Taken together, they describe a global, decentralized, labor-intensive industry improvising its way toward a future in which the climatic assumptions built over generations can no longer be taken for granted.
What remains constant across every farm and every crop is the particular vulnerability of a flower itself: unlike grain, it cannot be stored against a bad season; unlike livestock, it cannot be moved out of danger; and unlike almost any other commercial crop, its entire economic value depends on a narrow, ceremonial window of time—a wedding date, a religious festival, a single retail holiday—that does not move to accommodate the weather, even when the weather refuses to cooperate. That unforgiving combination of biological fragility and calendar-bound demand makes the flower trade an early and unusually visible register of how much the climate growers depend upon has already begun to change.