Florida Citrus Industry History — Florida

Florida's citrus industry ranks among the oldest and most economically consequential agricultural systems in the United States. Citrus trees are not native to Florida or North America; the Florida Department of State, Division of Historical Resources documents that Ponce de León and subsequent Spanish explorers likely introduced citrus trees near St. Augustine between 1513 and 1565. For roughly three centuries the cultivation that followed remained non-commercial, constrained by limited markets, the disruptions of the Civil War, and the absence of reliable transportation.

Commercial production accelerated in the mid-1870s with railroad expansion and growing Northern demand, spawning what the Florida Department of State calls the industry's first boom. The sector grew to produce 5 million boxes annually by the early 1890s before the catastrophic Great Freeze of 1894–95 reduced output to under 50,000 boxes. Recovery introduced new varieties, new governance structures, and — after World War II — a technological transformation in the form of frozen concentrated orange juice (FCOJ). At its peak in the 1997–98 season, Florida produced approximately 244 million 90-pound boxes of oranges, according to the Florida Agriculture Authority. Since 2005, the bacterial disease huanglongbing (HLB), also called citrus greening, has reduced production by more than 90%, reshaping rural economies across Polk, Highlands, DeSoto, and St. Lucie counties and triggering sustained federal and state research investment.

The trajectory of Florida citrus begins not with agriculture but with exploration. The Florida Department of State records that Spanish explorers introduced citrus trees near St. Augustine between 1513 and 1565, and seedlings spread along mission corridors over the following two centuries without organized commercial intent. A freeze in 1835 that destroyed citrus cultivation in the Carolinas and Georgia proved a turning point: the Florida Memory Project documents that this event began a permanent southward migration of the industry into Florida, cementing the state's geographic dominance over domestic supply.

One of the earliest commercially significant grove sites was established by Douglas Dummett on Merritt Island in 1807. Dummett used wild citrus seedlings topworked onto sweet orange varieties, and his grove supplied rootstock that repopulated much of the nascent industry through the remainder of the 19th century, according to the Florida Memory Project. The Federal Reserve Bank of Atlanta documents that steamboat and then railway expansion opened Northern markets, with the mid-1870s marking the onset of the industry's first commercial boom. The geographic center of production at that time sat near the Putnam-Marion County line — roughly latitude 29.5°N — according to the University of Florida Extension via Indiana University Press.

Varietal development accompanied geographic expansion. James Padgett's 2018 UCF thesis records that the Parson Brown orange variety was formally introduced to commercial growers by Captain J.L. Carney of Lake Weir in Marion County in 1878, and that the Pineapple orange originated near Citra, also in Marion County — two early cultivars that helped define Florida's 19th-century orange identity.

The Great Freeze of 1894–95 stands as the most destructive single event in Florida citrus history before the modern disease era. The Orange County Regional History Center documents the sequence: a first freeze in December 1894 severely damaged groves across the central citrus belt; a period of warm weather then encouraged new growth, and a second freeze in February 1895 caused temperatures to drop 62°F in under 24 hours, killing trees to their roots. The University of South Florida's Tampa Bay History journal documents that Florida citrus production fell from 5 million boxes in 1894 to just 46,580 boxes in 1896 — a collapse of more than 99%. Production did not recover to the five-million-box level for almost two decades, per the Florida Memory Project.

The freeze permanently altered the industry's geography. Northern counties such as Marion and Putnam, significant producers through the 1880s, lost most of their groves and never regained production at scale. The geographic center of Florida citrus shifted southward to approximately Polk County by 1910, according to the University of Florida Extension.

The rebuilding period from 1909 to 1939 is documented in Padgett's UCF thesis Rebuilt and Remade: The Florida Citrus Industry, 1909–1939. Growers developed improved varieties to extend the harvest season, consolidated grove ownership at larger scales, and organized collective marketing efforts. Power concentrated among large-scale growers during this period, setting the institutional context for formal state governance in the 1930s.

In 1935, the Florida Legislature enacted the Florida Citrus Code, simultaneously establishing the Florida Citrus Commission and the Florida Department of Citrus, according to Florida Citrus Mutual. The commission was funded not through general tax revenue but by an excise tax levied on each box of citrus moving through commercial channels — a structure that, per Florida Citrus Mutual, persists today. This governance model concentrated marketing, research, and regulatory coordination within a single state agency, giving large-scale growers a formalized institutional voice. The Florida Department of Citrus records that the Indian River Citrus League was formed in 1931, four years before the statewide commission, to promote the coastal district's premium grapefruit in advance markets.

The most consequential technological development in the industry's history emerged during World War II. The U.S. Army in 1942 sought a Vitamin C-rich product suitable for overseas troops, and a team of USDA scientists working in Florida developed a low-temperature evaporation process for orange juice by 1945. The USDA National Agricultural Statistics Service records that the Florida Department of Citrus invented frozen concentrated orange juice (FCOJ) in 1945, and the patent was transferred to the United States Government in November 1948 — made freely available to Florida producers rather than licensed exclusively. Citrus Industry Magazine documents that by the 1949–50 season, Florida produced 20 million gallons of concentrate.

The economic consequences were transformative. Between 1945 and 1960, demand for processed citrus fruit grew 120%, according to the Florida Department of State. By 1960, many groves exceeded 100 acres and some of the largest exceeded 5,000 acres, completing the industry's transition from family-oriented production to full-scale agribusiness. At its peak in the 1997–98 season, Florida produced approximately 244 million 90-pound boxes of oranges, per the Florida Agriculture Authority. As recently as 2021, the industry supported 32,542 jobs and contributed nearly $7 billion in output, per the Federal Reserve Bank of Atlanta.

Florida's citrus production has historically divided into two recognized districts. The Interior district, centered on Polk, Highlands, and DeSoto counties in the central peninsula, has long supplied the bulk of orange production destined for processing. The Indian River district, a coastal strip encompassing Indian River, St. Lucie, Martin, and Okeechobee counties, developed a recognized quality premium in fresh-market grapefruit, with coquina limestone-derived soils cited by horticultural sources as producing distinctively sweet, low-seed fruit prized in international markets, according to the Florida Agriculture Authority. The Indian River Citrus League, formed in 1931, formalized that district's branding efforts, as documented by the Florida Memory Project.

According to USDA NASS 2024 statistics, DeSoto County remains the leader in total citrus acreage at 60,845 acres, and Valencia oranges accounted for approximately 62% of total orange acreage statewide. The southward shift in the industry's geographic center — from the Putnam-Marion County line in 1880 to Polk County by 1910, as documented by the University of Florida Extension — reflects both the destructive legacy of the 1894–95 freeze in northern counties and the greater cold-hardiness advantages of the central and southern peninsula.

Huanglongbing (HLB), caused by the bacterium Candidatus Liberibacter asiaticus and spread by the Asian citrus psyllid insect vector, was first detected in South Florida in 2005. The American Farm Bureau Federation documents that HLB is thought to have entered Florida through the Port of Miami. The USDA Agricultural Research Service reports that HLB has since spread throughout Florida and beyond — reaching Louisiana, Texas, and California — more than doubling production costs per grove acre.

The scale of decline is documented across multiple federal sources. The University of Florida Emerging Pathogens Institute reports a 94% production decline between the 2003 and 2023 seasons, with Florida's harvested citrus acreage falling from 748,555 acres in 2004 to 274,705 acres in 2024. The institute further notes that on average more than 90% of Florida's remaining citrus trees are infected with HLB. Choices Magazine, published by the Agricultural and Applied Economics Association, characterizes the post-2005 contraction as a greater-than-90% production decrease, citing USDA NASS 2024 data.

The civic consequences extend across rural Florida. Between 2002 and 2017, the number of Florida citrus growers fell from 7,389 to 2,775 — a 62% decline — while the number of juice processing facilities contracted from 41 to 14, per the American Farm Bureau Federation. Communities in Polk, Highlands, DeSoto, and St. Lucie counties have experienced sustained economic displacement. At the federal level, the Emergency Citrus Disease Research and Extension Program (ECDRE), administered through USDA NIFA, funds interdisciplinary research teams specifically addressing HLB, reflecting the industry's continued national policy significance.

The 2020s have layered hurricane damage onto the ongoing HLB crisis. Hurricane Ian made landfall in September 2022 and caused nearly $250 million in estimated citrus losses, contributing to a more-than-60% drop in production during the 2022–23 season, according to Farm Policy News at the University of Illinois. In October 2024, Hurricane Milton made landfall at Siesta Key and moved eastward through prime orange-producing counties including Polk, Hardee, and Highlands, per the USDA Economic Research Service. University of Florida IFAS researchers estimated total agricultural losses from Milton exceeded $190 million, per USDA ERS. Following Milton, the USDA projected Florida would produce approximately 15 million boxes of oranges in the 2024–25 season — a further decline from the prior year and potentially the lowest production level in 95 years, as reported by The Packer.

On the research side, in April 2025 breeders at the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) released six new citrus greening-tolerant varieties intended for commercial grove trials, according to UF/IFAS News. Co-developer Fred Gmitter described the selections as 'very promising and worthy of trialing in commercial groves.' The Citrus Research and Education Center at the University of Florida continues to test HLB-tolerant rootstock candidates and plant-derived antibacterial compounds. Meanwhile, abandoned groves across the central peninsula are increasingly being converted to solar farms and residential developments, with implications for aquifer recharge and land use patterns in Everglades-adjacent ecosystems, as noted by the Florida Department of State.