Hemp Plants Enhancing Wine Quality and Soil Health in New Zealand Vineyards

In the picturesque vineyards of New Zealand, a groundbreaking study has unveiled a revolutionary approach to viticulture, intertwining the ancient art of winemaking with modern sustainable farming practices. This blog delves into a remarkable research project that explores the symbiotic relationship between hemp plants and grapevines.

Conducted over three years in the Marlborough Wine Region, this study not only challenges conventional vineyard management but also opens doors to enhancing wine quality and environmental sustainability. As we navigate through the insights of this innovative research, we uncover the potential of hemp as a cover crop and its multifaceted benefits in the realm of viticulture.

Understanding Hemp

how hemp can help make better wine

Before diving into the specifics of the study, it's crucial to gain a fundamental understanding of the plant at the center of this research - hemp. Hemp, scientifically known as Cannabis sativa, is a variety of the Cannabis plant species that is grown specifically for its industrial uses. It's one of the fastest-growing plants and was one of the first plants to be spun into usable fiber 50,000 years ago.

Hemp is distinct from other cannabis varieties primarily due to its low tetrahydrocannabinol (THC) content, the psychoactive compound found in marijuana. While marijuana can contain THC levels upwards of 30%, hemp typically contains less than 0.3%. This significant difference is what legally distinguishes hemp from its psychoactive cousin and allows for its wide range of applications.

Historically, hemp has been used for a variety of purposes. Its fibers are known for their strength and durability, making them ideal for producing items like ropes, textiles, and paper. The seeds of hemp are also nutritious, rich in essential fatty acids, and can be consumed in various forms. In modern times, the versatility of hemp extends to environmentally friendly products like bioplastics, building materials, and biofuel. Its resurgence in agriculture has been fueled by its sustainability and the growing recognition of its environmental benefits.

In the context of viticulture, as we will explore, hemp's attributes go beyond its traditional uses. Its role in enhancing soil health, improving wine quality, and offering a sustainable crop alternative marks a new chapter in sustainable agriculture and the wine industry. As we proceed, we will uncover the specific findings of the New Zealand study and how hemp might just be the unsung hero of modern vineyards.

The Study's Background

study on hemp and wine grapes

In the renowned Marlborough Wine Region of New Zealand, known for its exquisite Sauvignon Blanc, a unique study was undertaken by grape grower Kirsty Harkness and viticulture researcher Dr. Mark Krasnow. Spanning three years, this research aimed to explore the effects of integrating hemp as a cover crop in vineyards. The Marlborough region, situated in the north of the South Island, provided an ideal setting for this study due to its climatic conditions and renowned wine production.

The study's premise was based on the hypothesis that hemp could enhance the quality of the wine while simultaneously improving the health of vineyard soils. The researchers sought to investigate whether hemp, traditionally known for its industrial and nutritional value, could play a beneficial role in viticulture. This inquiry was driven by a need to find sustainable and efficient farming practices that could coexist with the existing vineyard ecosystem without compromising the quality of the grapes and, ultimately, the wine.

Key Findings of the Study

The research conducted in the Marlborough vineyards yielded some compelling findings that have significant implications for vineyard management and wine production:

Increased Wine Quality

One of the most striking outcomes of the study was the improvement in wine quality from grapes co-planted with hemp. The research indicated that the presence of hemp positively influenced the grapevines, leading to a superior quality of wine. This was attributed to various factors, including the impact of hemp on soil quality and its influence on the microflora of the grapes.

Soil Improvement

The study revealed that hemp significantly improved the condition of vineyard soils. The presence of hemp led to an increase in organic matter and total carbon content in the soil. This was particularly notable at depths of 40-80 cm, suggesting that hemp's deep root system could facilitate better carbon sequestration deeper in the soil profile than other cover crops.

Carbon Sequestration

Hemp's robust growth and deep root system allowed it to sequester carbon effectively, which is crucial in the context of climate change mitigation. This attribute of hemp makes it a valuable crop in sustainable agriculture practices, offering environmental benefits alongside agricultural productivity.

Hemp’s Resilience

A key observation was hemp's ability to establish itself without the need for supplemental irrigation. This resilience was particularly noteworthy during an exceptionally dry season when other cover crops failed to thrive. This characteristic of hemp highlights its suitability for diverse climatic conditions and its potential as a reliable cover crop in vineyards.

These findings indicate that hemp could be a game-changer in the wine industry, offering a sustainable solution that benefits both the environment and the quality of wine production. The study not only reaffirms the versatility of hemp but also opens up new avenues for its application in agriculture and environmental conservation.

Benefits of Hemp in Vineyards

different ways hemp can be used

Alleviation of Soil Compaction

One of the critical challenges in vineyard management is soil compaction, which can hinder root growth and water absorption. The study found that hemp, with its robust and deep tap root system, could effectively penetrate compacted soil layers. This ability to grow even in compacted tractor wheel tracks helped alleviate soil compaction, allowing for better root development and overall soil health in the vineyards.

Enhancement of Native Yeast Populations

The presence of hemp in vineyards was observed to increase the diversity of native yeast populations on the grapes. This is a significant finding because native yeasts can contribute to the complexity and distinctiveness of wines. The study showed that the juice from grapes grown adjacent to hemp had a greater population of native yeasts, which in turn led to the production of a higher quality wine compared to vines grown separately from hemp plantings.

Potential for Secondary Income

The versatility of hemp extends beyond its environmental benefits. For vineyard owners, hemp presents an opportunity for a secondary income stream. Hemp matures earlier than grapes, allowing for an additional harvest before the grape picking season. This could be particularly beneficial for growers looking for diversification and new revenue sources within their existing agricultural practices.

Comparisons with Other Cover Crops

Failure of Other Cover Crops

In the same Marlborough vineyards where hemp thrived, other cover crops struggled to establish themselves, especially during dry conditions. The study highlighted the unique resilience of hemp compared to these other crops, emphasizing its ability to grow without supplemental irrigation.

Hemp's Unique Advantages

The study underscored several unique attributes of hemp that set it apart as a cover crop. Its deep rooting system not only improves soil structure but also enhances carbon sequestration deeper into the soil. Furthermore, hemp's ability to thrive in challenging conditions, including dry seasons and compacted soils, makes it a highly adaptable and beneficial crop for sustainable vineyard management.

The findings from this study illustrate hemp’s potential as a versatile and sustainable cover crop in vineyards. Its ability to improve soil health, enhance wine quality, and provide economic benefits positions hemp as a valuable addition to modern viticultural practices. As we continue to explore sustainable agricultural solutions, hemp's role in vineyard ecosystems presents exciting possibilities for the future of winemaking and environmental stewardship.

The Future of Hemp in Vineyards

hemp as a cover crop

Grape Grower’s Perspective

Kirsty Harkness, one of the researchers and a grape grower herself, expressed her primary focus on producing the highest quality fruit and improving the health of vineyard soils. Her insights underscore the practical benefits of hemp in vineyards, emphasizing its role in enhancing soil quality and grape yield without competing for resources with the grapevines.

Further Research and Potential Applications

 While the study has shed light on the immediate benefits of hemp, it also opens up avenues for further research. Exploring different hemp varieties, their specific impacts on various grape types, and long-term soil health are potential areas of study. Additionally, understanding the nuanced interactions between hemp and the micro-ecosystem of vineyards could provide deeper insights into sustainable viticulture practices.

Krasnow’s Observations

Dr. Mark Krasnow, the viticulture researcher involved in the study, remarked on the hemp’s lack of competition with vines, which was a surprising yet positive outcome. He highlighted the robust root system of hemp, its minimal water requirements, and its contribution to soil carbon content as key factors that make it a valuable tool in vineyard management.


The pioneering study conducted in the Marlborough Wine Region of New Zealand has revealed the multifaceted benefits of incorporating hemp into vineyard ecosystems. The findings from this research are a testament to the evolving practices in viticulture, where sustainability and quality go hand in hand. As we continue to explore eco-friendly and efficient agricultural methods, hemp stands out as a viable and beneficial choice for vineyard management. This study not only contributes valuable knowledge to the wine industry but also serves as an inspiration for adopting sustainable practices in other agricultural sectors.

In conclusion, the integration of hemp into vineyards is more than just a novel idea; it’s a practical solution that addresses environmental concerns while enhancing the quality and economic viability of wine production. The success of this study in New Zealand paves the way for wider adoption of hemp in vineyards worldwide, marking a significant step towards sustainable and innovative agricultural practices.

E1011 Labs' Support and Enthusiasm for Cannabis Research and Hemp’s Contributions to Society

At E1011 Labs, our enthusiasm for the diverse applications of cannabis, including hemp, extends far beyond our core products. We are ardent supporters of research that explores and highlights the myriad ways in which cannabis, in all its forms, can contribute positively to society. The groundbreaking study in New Zealand's Marlborough Wine Region exemplifies the kind of innovative research we champion – one that unveils the multifaceted benefits of cannabis, specifically hemp, in sustainable agriculture and beyond.

Celebrating Hemp’s Versatility:

The findings of the study, highlighting hemp's role in enhancing wine quality and improving soil health, underscore the versatility of the cannabis plant. At E1011 Labs, we are excited about these developments, as they align with our belief in the plant's potential to contribute significantly to various sectors. We see hemp's success in vineyards as a testament to its potential in sustainable farming practices and as a key player in the global movement towards greener solutions.

Educational Initiatives and Community Engagement: 

Inspired by such research, E1011 Labs is committed to educating the public and our customer base about the broad applications of cannabis, especially hemp. We aim to engage with our community through educational content and collaborations that spread awareness about the environmental and societal benefits of hemp. By doing so, we hope to change perceptions and encourage a more inclusive understanding of cannabis and its positive impact on society.

Exploring New Opportunities for Hemp: 

The successful use of hemp in vineyards opens new doors for its application in other agricultural and industrial sectors. E1011 Labs is keenly interested in these developments and is exploring ways to incorporate hemp into our sustainability practices and product lines. We believe that hemp's potential is vast and largely untapped, and we are excited to be part of the journey to discover and harness its full capabilities.

In summary, E1011 Labs stands firmly behind research that sheds light on the positive contributions of cannabis, particularly hemp, to society. We are inspired by studies like the one conducted in New Zealand's vineyards and are eager to support and participate in similar research. Our commitment to sustainability, education, and innovation drives us to explore and champion the diverse and impactful uses of cannabis in all its forms.