The Winter Solstice marks the shortest day and longest night of the year. Charmain Z. Brackett/Augusta Good News
The Winter Solstice marks the shortest day and longest night of the year. Charmain Z. Brackett/Augusta Good News

When it comes to plants, the Winter Solstice is all about daylight — or lack thereof

The Winter Solstice occurs each December and marks the shortest day and longest night of the year in the Northern Hemisphere. In 2025, the solstice falls on Dec. 21. While the event is often subtle in the South, particularly in Georgia’s USDA Zones 8a and 8b, it marks a precise and well-documented point in Earth’s orbit that has guided seasonal awareness for thousands of years.

Astronomically, the Winter Solstice is the moment when the Northern Hemisphere is tilted farthest away from the sun. This results in the sun reaching its lowest arc across the sky and the least amount of daylight for the year. The solstice occurs simultaneously worldwide, regardless of location. What varies is how it is experienced locally. In Northern states, it may coincide with snow and prolonged cold, while in the Southeast, it can bring anything from a hard frost to unseasonably mild temperatures.

Long before modern calendars and meteorology, ancient civilizations tracked the solstice by observing the sun’s movement and changes in daylight. Cultures, including the Egyptians, Mayans, Chinese astronomers, Druids and early agrarian societies, used the solstice as a seasonal reference point tied directly to food storage, planting cycles, and survival. These observations laid the groundwork for today’s scientific understanding of Earth’s axial tilt and orbit.

Modern astronomy can calculate the exact timing of the solstice to within seconds, typically placing it on Dec. 21 or 22. While the date remains consistent globally, regional climate conditions shape how the solstice is felt on the ground. In Georgia, the event often passes quietly, with only slightly shorter days and longer nights signaling the change.

Dec. 21 marks the Winter Solstice. Charmain Z. Brackett/Augusta Good News

“The Farmers’ Almanac,” first published in 1818, continues to document astronomical events like the Winter Solstice alongside seasonal forecasts and agricultural guidance. It remains a widely used reference for farmers and gardeners seeking long-range insights into weather patterns and planting cycles.

From an agricultural standpoint, the Winter Solstice is less about temperature and more about daylight. According to the University of Georgia Cooperative Extension, plants respond primarily to changes in light exposure rather than calendar dates. Shorter days slow photosynthesis, plant growth, and soil microbial activity. After the solstice, as daylight gradually increases, cool season crops such as leafy greens begin responding more vigorously, root crops develop more efficiently, and perennial plants initiate early internal growth well before visible buds appear.

For gardeners and farmers, the solstice serves as a practical checkpoint rather than a rigid seasonal boundary. It signals that the annual decline in daylight has reached its lowest point and that longer days lie ahead. In Georgia, this often coincides with routine winter tasks such as monitoring overwintered crops, maintaining mulch coverage, pruning fruit trees, and planning for spring planting.

Although winter conditions may persist for weeks or months after the solstice, the event marks the turning point in the solar calendar. Daylight increases incrementally, reinforcing the gradual transition toward spring.

According to the Farmer’s Almanac online, the earliest sunset occurred Dec. 7, 2025 while the latest sunrise will be in early January. The sunset in Augusta on Dec. 21 will be at 5:25 p.m.

From an agricultural standpoint, the Winter Solstice is less about temperature and more about daylight. .Charmain Z. Brackett/Augusta Good News

Even in regions where winter arrives without dramatic weather shifts, the Winter Solstice remains a significant astronomical and agricultural marker. It reflects a measurable change in Earth’s relationship to the sun and continues to influence how growers, scientists and communities understand seasonal cycles.

To learn more about the Winter Solstice and the science, history and seasonal mechanics behind it, several trusted, research-based resources are available.

The University of Georgia Cooperative Extension provides locally relevant explanations of astronomical seasons and climate context, including why the solstice marks the shortest day of the year and how it affects the Southeast; click here. NASA’s Earth Observatory offers clear, science-driven explanations of Earth’s axial tilt and orbit and how those movements create the solstice each year; go here. EarthSky breaks down solstice science in plain language while also connecting it to what people can observe in the sky, making it accessible to readers of all ages. National Geographic provides well-researched coverage of the solstice’s scientific foundations and its historical and cultural significance around the world.

Nick Lovett is an independent journalist with over 20 years of experience in news media and marketing. A former writer for Aiken Standard and Fort Gordon’s Signal newspaper, she focuses on human interest stories that highlight resilience, community and positive change.

Support Local Journalism

Local stories on local people, organizations and events. That's the focus of Augusta Good News, a member of the Georgia Press Association. And you don't have to go through a paywall to find these stories. An independent voice in Augusta, Ga., Augusta Good News is not funded by a billionaire or a large corporation; it doesn't have celebrity reporters who have agents. It's local people who are invested in the community and want to tell its stories. You can support local journalism and help us expand our coverage by becoming a supporter. Through Ko-Fi, you can give once or set up a monthly gift.

Leave a Reply

Your email address will not be published. Required fields are marked *