How fire, people and history shaped the South’s iconic longleaf pine forests
For thousands of years, one tree species defined the cultural and ecological identity of what is now the American South: the longleaf pine. The forest once stretched across 92 million acres from Virginia to Texas, but about 5% of that original forest remains. It was one of North America’s richest ecosystems, and it nearly disappeared.
As part of my job with the Mississippi State University forestry extension, I help private landowners, public agencies and nonprofit conservation groups restore these ecosystems. The forests’ story begins before European settlement, when Native peoples shaped and sustained this vast landscape using one of nature’s oldest tools: fire.
Longleaf pine trees depend on fire for survival and regeneration. Fire reduces competition from other plants, recycles nutrients into the soil and maintains the open structure of the landscape where longleaf pines grow best. In its open, grassy woodlands, red-cockaded woodpeckers, gopher tortoises, orchids, pitcher plants and hundreds of other species find homes.
Native stewardship
Longleaf pine seedlings spend about three to 10 years in a low, grasslike stage, building deep roots and resisting flames that sweep across the forest floor. Regular, low-intensity fires keep the ground open and sunny, and allow an incredibly diverse understory to flourish: pine lilies, meadow beauties, white bog orchids, carnivorous pitcher plants and dozens of native grasses.
For millennia, Native American tribes intentionally set fires to keep these areas open for hunting, travel and agriculture. This practice is evident from Indigenous oral histories, early European accounts and archaeological findings. Fire was part of daily life – a tool, not a danger.
European settlers arrive
When the first Europeans made it to that part of North America, they encountered a landscape that seemed almost limitless: tall, straight pines ideal for shipbuilding; deep soils in the uplands suited for farming; and understory perfect for open-range grazing.
Longleaf pine trees became the backbone of early industries. They provided lumber, fuel and naval supplies, such as tar, pitch and turpentine, which are essential for waterproofing wooden ships. By the mid-1800s, the naval industry alone consumed millions of longleaf pines each year.
At the same time, livestock, especially hogs, roamed freely and caused unexpected ecological damage. Hogs rooted up the starchy, above-ground stems of young longleaf seedlings, often wiping out an area’s entire year of seedlings before they could grow beyond the grass stage.
Still, even into the mid-1800s, millions of acres of longleaf forest remained intact. That would soon change.
Industrial logging and the collapse of a forest
By the late 19th century, the industrial South entered a new era of logging. Railroads could reach deep into forests that were previously inaccessible. Steam-powered skidders dragged huge logs to mobile mills that could turn thousands of acres of trees into lumber in a single season. Lumber towns appeared overnight, then disappeared once the last trees were cut.
Most longleaf forests were felled between 1880 and 1930, with little thought given to regrowth. Land was cheap, timber was valuable, and scientific forestry was in its infancy. After logging, what was left on the ground at many sites burned in wildfires too hot for young longleaf pines to survive.
Other parcels of land were overrun by hogs or were converted to farms. Other forestland simply failed to regenerate because longleaf requires both good seed years and carefully timed burning to establish new generations of seedlings. By 1930, the once-vast longleaf forest was effectively gone.
A turning point
The early 20th century brought public debates about fire. National forestry leaders, trained in northern ecosystems where wildfire was destructive, insisted that all fire was harmful and should be quickly extinguished. Southern landowners disagreed. They had long understood that fire kept the woods open, reduced pests and improved forage.
A series of pioneering researchers proved scientifically what Native peoples had practiced for centuries: Prescribed fire is essential for longleaf pine forests.
By the 1930s, prescribed fire began to gain acceptance among Southern landowners and wildlife biologists, and by the 1940s it was recognized as a legitimate management tool. This shift marked the beginning of a slow recovery of the forest.
Yet foresters faced challenges regenerating longleaf pines. The species grows more slowly than alternatives, making it less attractive to industry. Millions of acres were converted to faster-growing plantation pines. By 1990, only 2.9 million acres remained.
A new era of restoration
Beginning in the 1980s, research breakthroughs showed that longleaf pines could be reliably restored with proper seedling quality, site preparation and fire management.
Improved genetics and better propagation methods increased survival dramatically.
At the same time, landowners and agencies began to recognize the broader benefits of longleaf systems. Today, restoration efforts span public lands, private forests and working farms.
The longleaf pine ecosystem is more than a forest: It is a story of how people shape landscapes over centuries. It thrived under Native fire stewardship, declined under industrial exploitation, and is now returning through science, collaboration and cultural rediscovery.
The future of the longleaf pine forest will depend on continued use of prescribed fire, support from landowners and the recognition that restoring complex systems takes time.
Author: Andrea De Stefano, Assistant Professor of Forestry, Mississippi State University
Originally published by The Conversation.