The Eastern Jianghuai region, rich in natural resources and fertile lands, served as a fertile ground for the cultivation of a variety of crops in ancient China. The late Zhou period, spanning from approximately 1046 to 256 BCE, marked a crucial phase in Chinese history characterized by the shift from nomadic lifestyles to settled agricultural practices. This transition initiated profound changes in the landscape, as communities began to cultivate specific crops, which inadvertently led to the proliferation of certain weed species adapting to these new agricultural conditions.

By carefully analyzing archaeological evidence, this research team conducted interdisciplinary studies that combined botanics, archaeology, and ancient agricultural practices. The findings revealed a fascinating interplay between the cultivated crops and the weed species that thrived in their proximity. Weeds, often considered pests in modern agriculture, serve as an insightful indicator of past agricultural practices, providing clues to the types of crops grown and the farming techniques employed by ancient farmers.

The researchers identified several key weed species that thrived in the Eastern Jianghuai region during the late Zhou period. These weeds were not merely a nuisance; they played a significant role in the local ecosystem, influencing not just agriculture but also the biodiversity and health of the soil. The presence of specific weed types highlighted the agricultural techniques utilized, including crop rotation and intercropping, which were aimed at sustaining soil health and maximizing yields.

As the study progressed, the authors examined the historical context surrounding these agricultural practices. The late Zhou period was marked by significant technological advancements and a growing understanding of agricultural science among early farmers. Tools became more sophisticated, and methods for sowing and harvesting crops saw improvements, leading to increased productivity. This intricate knowledge allowed ancient civilizations to manipulate their environments, shaping the agricultural landscapes that would define their societies for centuries.

In addition to identifying weeds, the study explored the ecological concepts that ancient farmers practiced. For instance, the cultivation of several crops simultaneously was a strategic approach aimed at ensuring food security and resilience against crop failures due to climate variability. This historical perspective on crop diversity is strikingly relevant today as modern agriculture seeks to adapt to changing environmental conditions.

The importance of this research extends beyond the mere identification of plants. It offers a lens through which we can view the socio-economic dynamics of the late Zhou period, illustrating how agricultural practices directly influenced social structures, trade, and cultural developments in ancient China. Understanding the intricate ties between agricultural methods and the surrounding ecology allows historians and archaeologists to piece together a fuller picture of life during this transformative period.

Furthermore, the implications of this research reach modern agricultural practices. As the world grapples with food security and sustainability challenges, ancient agricultural wisdom can provide valuable insights into fostering resilient farming systems that harmonize with local ecosystems. The study emphasizes that learning from historical practices can guide contemporary strategies in sustainable agriculture, promoting a balance between human needs and environmental health.

The study, published in the journal Archaeological and Anthropological Sciences, presents a meticulously researched account of the findings, offering a rich narrative encapsulated in the examination of weed species from the late Zhou period. The research not only marks a significant contribution to the field of archaeology but also invites further exploration into the ways that ancient societies interacted with their environment. With a growing interest in agricultural history, this research underscores the necessity of an interdisciplinary approach to understand the past fully.

In conclusion, by highlighting the intersections of weeds and archaeological records, this research opens new avenues for inquiry into ancient agriculture. The late Zhou period stands as a testament to human ingenuity and adaptability, showing how communities cultivated crops in ways that respected and responded to their environments. As we delve into the lessons of the past, the significance of this study serves as a reminder of the timeless connection between agriculture, ecology, and the resilience of human societies throughout history.

Subject of Research: Ancient agricultural practices in the Eastern Jianghuai region during the late Zhou period.

Article Title: The cropping systems reflected by weeds in the Eastern Jianghuai region during the late Zhou period.

Article References:

Li, H., Jia, X., Bai, G. et al. The cropping systems reflected by weeds in the Eastern Jianghuai region during the late Zhou period.
Archaeol Anthropol Sci 17, 180 (2025). https://doi.org/10.1007/s12520-025-02302-7

Image Credits: AI Generated

DOI: https://doi.org/10.1007/s12520-025-02302-7

Keywords: Ancient agriculture, Late Zhou period, Eastern Jianghuai region, Weeds, Archaeology, Cropping systems, Ecological impact, Sustainable practices.

Natalie Mueller, an expert in agrobiodiversity and an assistant professor of archaeology at Washington University in St. Louis, has devoted her research to unearthing these forgotten agricultural traditions. In her recent publication in Philosophical Transactions of the Royal Society B dated May 15, 2024, Mueller synthesizes decades of archaeological, botanical, and ethnographic evidence to reveal a more complex and ecologically integrated prehistoric agricultural system. Her work emphasizes the potential revival of these “sleeping” crops and agricultural techniques, positioning them not as lost curiosities but as viable alternatives adaptable to today’s climatic challenges.

Mueller challenges the long-standing term “lost crops,” opting instead for “sleeping crops” to reposition these plants and their agricultural histories within a living continuum of Indigenous stewardship. This linguistic shift was inspired by members of the St. Louis Native American Women’s Care Circle, who emphasized that the notion of “lost” perpetuates colonial myths of extinction and erasure. To Indigenous seed keepers, seeds possess agency; they are dormant, waiting for their caretakers to reconnect and fulfill reciprocal responsibilities. Such a framework underscores contemporary movements focused on Indigenous food sovereignty and seed reclamation—efforts that breathe life back into these neglected crops.

The crops Mueller studies are often dismissed as weeds: species such as little barley (Hordeum pusillum), maygrass (Phalaris caroliniana), sumpweed (Iva annua), goosefoot (Chenopodium berlandieri), and knotweed (Polygonum erectum). These were once intentionally domesticated and cultivated components of Indigenous agricultural systems that extended well beyond the better-known triad of corn, beans, and squash. While squashes and sunflowers remain common today, the domesticated varieties of these other species have largely vanished. Mueller’s work calls attention to the expansive biodiversity once managed by Indigenous peoples, which included not just annual crops but also perennial plants integrated within forest, wetland, and prairie ecosystems.

What makes this ancient system remarkable is its ability to reconcile productivity with biodiversity. Unlike many modern, industrialized agricultural paradigms that prioritize monoculture and high yields at the expense of ecological health, prehistoric Indigenous agriculture in eastern North America fostered thriving, resilient agroecosystems. These systems optimized food outputs while preserving habitat complexity, soil integrity, and ecological functions. The methodological insights gleaned from these ancient practices hold profound implications for sustainable agriculture, particularly in the face of accelerating climate change and environmental degradation.

One pressing contemporary problem where such knowledge may prove invaluable involves the increasing frequency and intensity of flooding events throughout the Midwestern United States. Current agricultural staples like corn and soybeans are ill-suited to withstand unpredictable flood dynamics, making floodplain fields vulnerable to catastrophic damage. Muller proposes the reintegration of wetland and flood-adapted crops into these landscapes. These species, by their very nature, demand fewer inputs, reducing the reliance on artificial soil amendments and costly infrastructure aimed at flood control, and thus potentially offering a more resilient and ecologically sound agricultural alternative.

Engagement with Indigenous communities is central to Mueller’s approach in cultivating these “sleeping” crops anew. Historical ecology elsewhere has supported collaborations that simultaneously advance scientific understanding while facilitating Indigenous reclamation of ancestral lands and resources. Such collaborative research remains sparse in the eastern North American context, where forced displacements and complex jurisdictional legacies complicate access to traditional territories. Nonetheless, promising models exist, such as the Rivercane Restoration Alliance, which brings together government agencies, conservation organizations, and tribal nations in a cooperative effort to restore cultural keystone species and promote ecological restoration.

Within her own research lab at Washington University, Mueller has begun cautiously resurrecting these crops through seed banking and dissemination initiatives. The lab maintains a repository of progenitor seeds of these underappreciated species, distributing them to educational institutions, Indigenous growers, and students. Alongside these efforts, they offer cultivation guides detailing practical aspects of growing and processing the seeds. This work is an early but critical step toward experimental archaeology and applied research aimed at understanding the ecological requirements of these species and their potential to be reintegrated into contemporary food systems.

Crucially, Mueller’s research scope is expanding beyond annual “sleeping” crops to encompass perennial food plants traditionally cared for by Indigenous peoples. Species like American lotus (Nelumbo lutea), sunchokes (Helianthus tuberosus), and persimmons (Diospyros virginiana) illustrate how Native agriculturalists enhanced natural ecosystems without imposing homogenizing tendencies typical of industrial farming. These perennial plants often thrive within forests and wetlands, and their integration into managed landscapes demonstrates a sophisticated understanding of ecological interactions and resource management.

The overarching genius of eastern North America’s ancient agricultural system lies in this alliance between humans and ecosystems, characterized by a nuanced blending of cultivation and foraging. Rather than striving to dominate or replace natural biodiversity, Indigenous farmers worked in concert with it. This agroecological paradigm offers a template for creating resilient food systems that adapt to environmental variability while supporting biodiversity and ecosystem services fundamental to long-term agricultural sustainability.

This new synthesis of “sleeping” crops not only enriches our understanding of precolonial agriculture but also reframes agricultural heritage as dynamic and ongoing. It challenges the assumptions underpinning modern food systems and opens pathways toward diversification, resilience, and ecological harmony. As the urgency to address climate crises intensifies, revisiting Indigenous agricultural wisdom offers promising avenues for innovation and restoration, blending ancient knowledge with cutting-edge science and Indigenous sovereignty movements.

Mueller’s work underscores the critical importance of inclusive research frameworks that honor Indigenous epistemologies and stewardship. It is through this collaborative and respectful engagement that the agricultural potential of eastern North America’s “sleeping” crops can germinate once more—awakening forgotten seeds and planting new futures for diversified, sustainable, and culturally grounded food production.

Subject of Research: Agrobiodiversity and ancient agricultural systems of eastern North America, focusing on domesticated “sleeping” crops and Indigenous food sovereignty.

Article Title: The sleeping crops of eastern North America: a new synthesis

News Publication Date: May 15, 2024

Web References:

• Interview and research summary at Washington University in St. Louis Anthropology Department: https://anthropology.wustl.edu/people/natalie-mueller
• Original paper: https://royalsocietypublishing.org/doi/10.1098/rstb.2024.0192
• Rivercane Restoration Alliance: https://conserve-group.org/rra
• Lost Crops cultivation guides: https://sites.wustl.edu/lostcrops/lost-crops-cultivation-guides/

References: See DOI 10.1098/rstb.2024.0192

Keywords: Anthropology, Archaeology, Ethnobotany, Plant sciences, Sustainable agriculture, Climate change, Land use, Natural resources