E.C. Lee / SIMTEA.com
This report provides an in-depth analysis of the 300-year history of the Wisconsin ginseng industry, its unique cultural identity, and the severe economic challenges it currently faces. Wisconsin ginseng is a unique cultural-economic product, born from a combination of North America's unique 'terroir' and the demands of Traditional Chinese Medicine (TCM), particularly in China. The industry earned its status as the "Napa Valley of Ginseng" based on the "highest quality" reputation of roots grown in the glacial soils of Marathon County.
However, the industry's core success factors—its "highest quality" brand and its extreme reliance on a single demand source, the Chinese market (over 95% of total exports)—have precipitated the current crisis of survival. Due to punitive tariffs exceeding 100% from the U.S.-China trade war, Wisconsin ginseng has lost its price competitiveness, leading to warehouses full of unsold inventory and threatening the industry's very existence.
Furthermore, the long 4- to 5-year cultivation cycle is a structural limitation that makes it impossible to respond to short-term market fluctuations. In this environment, the Wisconsin ginseng industry is attempting a desperate strategic pivot. It must simultaneously defend its 'quality' brand against the offensive of low-cost alternatives from Canada and China while exploring new markets, including Southeast Asia, Europe, and the domestic U.S. market. This report analyzes this historical, cultural, and economic context to define the nature of the crossroads at which the Wisconsin ginseng industry now stands.
I. Roots of Two Worlds, American Ginseng (Panax quinquefolius)
1.1 North America's Native Plant, Asia's Prized Medicine
American ginseng (scientific name: Panax quinquefolius) is botanically a 'sister species' to Asian ginseng (Panax ginseng).1 This plant is originally native to the deciduous forests of eastern North America.2 In the early 1700s, Joseph-Francois Lafitau, a French Jesuit missionary, encountered records of Asian ginseng and subsequently discovered this plant in the similar environment of Canada, where he was stationed.4 In 2019, a Smithsonian Institution DNA test confirmed that the two ginseng species moved across the Bering Land Bridge and separated into distinct species over millions of years, adapting to new environments on their own, not through human intervention.4
The term 'Ginseng' itself implies that the plant's value was named from an East Asian perspective from the very beginning. The genus name 'Panax' comes from the Greek 'panakeia' (panacea, or all-healing) 2, and 'ginseng' is derived from the Chinese 'jen-shen (人蔘),' meaning the root resembles the shape of a person.2
1.2 Key Differences: Botanical and Chemical Distinctions from Asian Ginseng (P. ginseng)
Although visually similar, American and Asian ginseng have distinct chemical component profiles. They are not substitutes but are classified as products with their own unique values.
Chemical Indicators (Ginsenosides):
Ginsenoside Rf: Present in Asian ginseng (Korean ginseng) and Notoginseng, but absent in American ginseng.8
Pseudoginsenoside F11: A unique component found only in American ginseng.8
Rg1/Rb1 Ratio: This ratio is a key forensic indicator used to differentiate the two ginsengs.8 American ginseng has a very low ratio (below 0.4), while Asian ginseng is characterized by a high ratio.8
Content by Part: In both species, the richest concentration of ginsenosides is found in the roots, particularly the fine roots.10 In American ginseng roots, ginsenosides Re and $Rb1$ are the main components, with a relatively low content of Rg1.12
Overall Profile: American ginseng has a chemical profile clearly distinct from Asian ginseng in terms of total ginsenoside content and the ratio of PPD (Protopanaxadiol) to PPT (Protopanaxatriol) families.9
1.3 Traditional Chinese Medicine (TCM) Perspective: A 'Cooling (Yin, 陰)' Herb
The fundamental reason American ginseng gained its unique marketability in Asia is its distinct medicinal classification in Traditional Chinese Medicine (TCM). TCM classifies herbs according to their 'Qi' (energy) properties (e.g., cooling, warming).13
American Ginseng (P. quinquefolius): Classified as a 'Cooling' 'Yin (陰)' tonic.13 In TCM, its primary function is to cool and calm excessive 'Internal Heat' or 'Dryness' in the body.13 It is therefore used to alleviate 'Yin Deficiency' symptoms such as persistent thirst, irritability, and feelings of heat in the body.13 It supports energy, but in a 'calming' rather than an exciting way.4
Asian Ginseng (P. ginseng): Conversely, it is classified as a 'Warming' 'Yang (陽)' tonic.13 It is used to invigorate 'qi' (vital energy) and promote blood circulation and 'Yang energy'.13
This TCM classification is partially supported by animal experiments using mice. One study showed that mice administered high doses of American ginseng tended to have a decrease in nighttime body temperature, while those given Asian ginseng (Red Ginseng) did not.17
In conclusion, the very foundation of the American ginseng industry rests on the distinct TCM demand for 'Cooling (Yin)' properties that P. ginseng cannot provide. This functional complementarity has been the fundamental economic driver supporting 300 years of North American ginseng trade.
Core Comparison: American Ginseng vs. Asian Ginseng
II. The Historical Genesis of Wisconsin Ginseng
2.1 The First Stewards: Traditional Medicinal Use by Native Americans
Centuries before European settlers arrived, American ginseng was widely used as an important medicinal herb in the traditional medicine of Native Americans.18 They were the first cultivators and stewards of ginseng.
Specific use cases varied by tribe 20:
Ojibwe Midewiwin: Spiritual leaders skilled in medicine used the ginseng root to treat indigestion and alleviate pain.
Muscogee: A poultice of the crushed root was used as a styptic to stop bleeding, and ginseng tea was used to treat respiratory ailments and fevers.
Meskwaki: The Meskwaki people of the Great Lakes region used ginseng as an aphrodisiac and as a 'panacea,' or universal remedy, effective for both adults and children.
This traditional use by indigenous peoples saw a major shift in the 1840s. White settlers, having learned of ginseng's value in the Asian market, began acquiring it in large quantities from Native Americans for the purpose of export.18
2.2 18th Century Trade Discovery: A Key Commodity in Early U.S.-China Relations
The history of American ginseng shows a classic colonial economic pattern, where its value shifted rapidly from 'medicine' to 'export commodity.' Immediately after American independence (1776), the fledgling nation sought direct trade with China, and ginseng was a key trade good.6
In 1784, when the first American trade ship to China, the 'Empress of China,' departed from New York Harbor, it carried over 30 tons of American ginseng.6 This proves that ginseng, along with furs and sandalwood, was a key export that supported the early American economy.3 President George Washington himself noted ginseng traders crossing the mountains in his diary in 1784.20
John Jacob Astor, a prominent merchant of the time, exported large quantities of American ginseng to China in the late 18th century, establishing it as a crucial commodity in U.S.-China trade.18
While ginseng held intrinsic value as a medicine for various ailments for Native Americans, it held only exchange value as a 'commodity' for settlers and merchants, destined solely for the Chinese market. This difference in value perception led to indiscriminate harvesting that ignored sustainability, causing over-harvesting of wild ginseng from the late 18th to the 19th century.2 The depletion of wild ginseng inevitably led to 'cultivation' attempts in Wisconsin in the early 20th century. In short, the collapse of the wild supply triggered the birth of the cultivation industry.
2.3 'Ginseng King' John H. Koehler: Marathon County's First Ginseng Garden (1901)
In the late 19th century, as wild ginseng supplies dwindled, there were attempts at cultivation, but early efforts in Wisconsin in the 1870s failed due to disease and other issues.2 The person who took on this seemingly impossible task was John H. Koehler.
Koehler had been fascinated by ginseng he saw in the woods as a young man in the 1880s. In the 1890s, he heard news of small-scale cultivation successes in the East and Missouri and decided to try it himself.23 His attempt, which involved quitting his stable job as a land agent, was met with accusations of being 'crazy' and faced financial ruin in the early years.23 However, in 1901, he finally succeeded in establishing Marathon County's first successful ginseng cultivation site, the 'Wisconsin Ginseng Garden'.23
Koehler's true contribution was not just the success of cultivation, but the 'design of the industry.' He organized growers to co-found the 'Wisconsin Ginseng Growers Association' and, in 1912, disseminated his knowledge by publishing a cultivation guide (『Ginseng and Goldenseal Growers' Handbook』) in English and German.23 He was not just a farmer but an 'Evangelist' who laid the foundation for the industry, earning him the later title "ginseng king".23
2.4 The Fromm Brothers' Legacy: Funding a Fur Empire (1904)
If Koehler built the industry's 'software' (knowledge, organization), the Fromm brothers provided the 'hardware' (capital, technology). In 1901, brothers Walter, Edward, John, and Henry Fromm read a magazine article about a silver fox fur selling for the high price of $1,200 in London and decided to go into the fur business.24
In 1904, they began cultivating ginseng as a 'means' to raise the initial capital (assets) for this massive fur enterprise.2 They utilized ginseng, which was seen as a 'free plant' in the woods at the time.24 But the cultivation process was arduous. It took a long five years to harvest, was vulnerable to blight and root rot, and faced the problem of not being able to be grown again in the same soil.24
The Fromm brothers overcame these challenges with technological innovation. They pioneered their own cultivation and drying methods and designed machinery to replace processes that had to be done by hand.24 They were 'Industrialists' who approached ginseng as an 'industry.' The profits from ginseng cultivation were used to purchase their first silver fox breeding stock in 1915, which eventually became the cornerstone for building a 'fur empire' that earned over $1.3 million in 1929.24
III. 'The Napa Valley of Ginseng': Marathon County's Terroir and Cultivation
3.1 Terroir Analysis: The Uniqueness of Glacial Soil and a Cold Climate
The most significant characteristic of the Wisconsin ginseng industry is its extreme geographical concentration. The state of Wisconsin accounts for 95% to 98% of all U.S. ginseng production 6, and 95% of that is produced in a single county: Marathon County.27
The reason for this 'hyper-concentration' is Marathon County's unique 'terroir'.29
Soil: The glaciated soil, formed during the last ice age, is mineral-rich 6, provides 'loamy soil' that is well-drained and rich in organic matter.2
Climate: It has the necessary conditions for ginseng to grow well, including 40-50 inches (approx. 1,016-1,270mm) of annual precipitation and an average annual temperature of 50°F (approx. 10°C).2
Dormancy: Most importantly, it guarantees the 'weeks of cold temperatures' that are essential for ginseng to undergo proper dormancy.2
This unique 'terroir' imparts a special quality to Wisconsin ginseng. In particular, the temperature difference between warm summer days and cool nights causes the ginseng to accumulate sugars through respiration, creating a characteristic 'bittersweet taste' that distinguishes it from ginseng from other regions.6 This has earned Marathon County the reputation of being the 'Napa Valley of Ginseng'.26
However, this 'terroir' is a double-edged sword. All of Wisconsin ginseng's economic value comes from this unique geographical environment, but this also means the industry cannot be geographically dispersed. While a blessing for quality, this hyper-concentration creates a 'single point of failure' risk for the local economy, making it extremely vulnerable to external shocks like disease, climate change, or the current trade war.
3.2 The Art of Cultivation: The 4-5 Year Wait and 'Shade-Grown' Technique
Wisconsin ginseng cultivation is extremely labor-intensive and requires a massive initial capital investment. It costs about $40,000 per acre in initial expenses 34, and requires long patience until harvest.7
Shade-Grown: Ginseng is a shade-loving plant. Cultivated ginseng requires 70% to 90% artificial shade to mimic its natural habitat under the canopy of deciduous forests.2 To achieve this, wood lath or black polypropylene shade cloth is installed above the ground to cover the entire field.28
Multi-year Process: Ginseng is a perennial crop that takes 3 to 5 years, typically 4-5 years, from seeding to harvest.6 Even the seeds must undergo a 1-year 'stratification' process (moist and cold treatment) before planting.36
High-Risk Cultivation: Ginseng cannot be grown again in land that has been used once (virgin soil).7 It is also highly susceptible to diseases like blight and root rot, to the point where it is said, "It's harder to raise ginseng than to raise a child".2
3.3 Quality Assurance: The Ginseng Board of Wisconsin (GBW) and the Official Seal
'Terroir' is an intangible value, and it is virtually impossible to distinguish the origin of dried ginseng root by the naked eye.39 This has led to rampant problems of lower-quality Canadian or Chinese-grown ginseng being counterfeited or mixed (mislabeling and product mixing) and sold as 'Wisconsin-grown'.39 This is a serious threat that undermines the premium pricing strategy based on 'terroir.'
In response, the 'Ginseng Board of Wisconsin (GBW)' was established in 1986.27 The GBW currently represents about 90 registered growers 27 and leads research, marketing, new product development, and education.27 Its funds are raised by collecting an assessment of $100 per acre under shade, with an annual budget of about $215,000.27
The GBW's most important role is quality assurance through the 'GBW Official Seal' program.
Purpose: A trademarked seal that guarantees the authenticity of Wisconsin-grown ginseng.33
Guarantee: The seal assures consumers that the product is 100% grown and harvested in Wisconsin 41, and that it complies with the U.S. Environmental Protection Agency's (EPA) strict pesticide use guidelines.41 It also verifies quality by testing for impurities, ginsenoside levels, etc., at an independent third-party laboratory.43
The 'GBW Seal' is not just a logo; it is a legal and economic defense mechanism, similar to the 'Appellation of Controlled Origin (AOC)' for Champagne or Parmesan cheese.33 It is a key quality-differentiation weapon for the Wisconsin ginseng industry to survive against low-cost competition by converting the intangible value of 'terroir' into a tangible 'trademark.'
IV. Regional Identity and Cultural Convergence
4.1 Symbolism as Wisconsin's Official State Herb
Ginseng, cultivated for over 100 years in Marathon County, has become more than just a crop; it is a regional symbol. Families who have been in the ginseng industry for generations, such as the Hsu family 28 and the Kaldunski family 6, serve as focal points for the local community.
In recognition of this cultural and historical importance, then-Governor Scott Walker signed a bill (2017 Wisconsin Act 86) on November 30, 2017, designating ginseng as the 'Wisconsin state herb'.6 This was a symbolic event that officially recognized at the state level that ginseng is an essential part of Wisconsin's history and identity.
4.2 International Wisconsin Ginseng Festival
The impact of ginseng on regional identity is best demonstrated at the 'International Wisconsin Ginseng Festival' held in downtown Wausau.47 This festival celebrates all things ginseng through farm tours, tastings of ginseng-infused cuisine, historical exhibits, and cultural performances.47
The most interesting aspect of this festival is its function as a 'multicultural melting pot,' where the diverse cultural communities related to the ginseng industry converge.
Chinese Culture: Reflecting the largest consumer market for ginseng, the highlight of the festival is a traditional 'Chinese lion dance' performance.47 The Wausau area was also the first in Wisconsin to install bilingual signs in English and Chinese (Mandarin).49
Hmong Community: The Hmong community, which provides significant labor for ginseng production, features prominently with traditional dances and ginseng cooking demonstrations by Hmong chefs.47
Native American Community: The festival also includes traditional dance performances by Native Americans (e.g., HoChunk tribe), the first users of ginseng, honoring the plant's deep roots.47
The festival attracts international visitors from around the world, especially from Asia (China, Hong Kong, Japan, Taiwan), contributing to the local economy.48
Typical globalization is a one-way flow where Region A (Wisconsin) produces and exports a product for Region B's (China) demand. However, this festival demonstrates a 'cultural feedback loop' mediated by the 'product.' That is, the exported product (ginseng) brings the consumer's culture (Chinese lion dance, Mandarin language) back to the production site (Wausau), dynamically reshaping the production site's local identity into a multicultural one. This is a dynamic example of globalization in action.
V. The Current State of the Wisconsin Ginseng Industry
5.1 Economic Impact and Industry Structure
Wisconsin ginseng holds a dominant position, accounting for 95-98% of all U.S. production 6 and about 10% of the world's supply.2
However, the industry's internal structure has undergone drastic changes over the past few decades. The number of ginseng farms, which reached 1,500 during the 'heyday' following the 1979 normalization of U.S.-China relations 18, has plummeted from 1,400 in 1994 30, to over 150 in 2018 29, to about 90 registered with the GBW 27 or fewer than 70 30 today. This indicates that small farms have been weeded out and the industry has become extremely concentrated and consolidated.
In terms of economic contribution, industry estimates just before the trade war were around $30 million 51 to $40 million 29 annually, with the majority of this revenue coming from Chinese buyers. A 2019 study (based on 2006-2008 data) estimated the total economic impact of ginseng production on the state economy at $16 million annually, with a job creation effect of 130 jobs.52
5.2 Global Exports and Single-Market Dependency
The economic structure of the Wisconsin ginseng industry is entirely dependent on a single engine, 'exports,' and specifically on a single market, 'China.'
Export Dependency: 85% to 95% of production is exported.53
Export Destinations: As of 2020, mainland China accounted for about 51% ($9.83 million) of total exports, and Hong Kong accounted for about 44% (approx. $8.40 million).26
This means that all ginseng produced in Wisconsin—approximately 85% or more (Export share 90% * Greater China share 95% = 85.5%)—is destined for the single 'Greater China' market. Economically, this industry is exposed to a market structure approaching a 'Monopsony' (single buyer). The lament from Will Hsu of Hsu's Ginseng, "There is no other market in the world that will consume this much ginseng" 31, is not an exaggeration but a cold reality based on statistics.
This structure was a 'golden goose' when the Chinese market was booming, but it has now transformed into 'Golden Handcuffs' that are strangling the industry.
Wisconsin Ginseng Industry Status (Data as of 2020-2024)
VI. Critical Challenges: The Trade War and Global Competition
6.1 From the 1979 'Heyday' to the 2018 'Nightmare'
The 1979 normalization of U.S.-China relations brought a 'heyday' to Wisconsin ginseng farmers.18 The number of farms exploded to 1,500, with 3,000 acres under cultivation.18 However, this period solidified a fragile industrial structure wholly dependent on Chinese market demand.25 In 2018, with the start of the Donald Trump administration's trade war with China 6, this structure began to collapse. Will Hsu described the current tariff situation as "reliving a nightmare".56
6.2 Tariff Shock Analysis: The Ripple Effect of >100% Punitive Tariffs
The Wisconsin ginseng industry has become one of the biggest victims in the crossfire of geopolitical conflict. Tariff rates have fluctuated unpredictably.
Tariff Fluctuations:
2018: Jumped from 12.5% to 42.5%.29
2022 (Biden Admin.): Slightly reduced to 32.5%.29
April 2025 (Trump 2nd Admin.): Re-raised to 66.5%.29
May 2025: Retaliatory tariffs peak, soaring to 117% ~ 147%.29
Late May 2025: Temporary 90-day truce, temporarily returning to 32.5%.29
When the tariff rate hit 117%, the price of Wisconsin ginseng doubled, and imports into China effectively halted.54 Orders were canceled 29, and the majority of the 2024 harvest (over 80% in Hsu's case) remains in warehouses, unsold.31 The reality for farmers is, "It's not profitable anymore".30
From a business perspective, this is a 'Perfect Storm.' This crisis occurred because two of the industry's key vulnerabilities were met simultaneously by the external shock of 'tariffs.'
Long Cultivation Cycle: Farmers are now (2025, 100%+ tariffs) harvesting crops planted 4-5 years ago (2020-2021, when tariffs were relatively low).31
Single Market Dependency: The only market (China) where they could sell the crop after a 4-5 year investment has effectively evaporated due to tariffs.
Farmers are caught in a structural trap where they cannot stop the 'supply' (harvest) to a market where 'demand' has disappeared.53 This has completely destroyed the cash flow for farms and is a fatal crisis that could lead to a chain of bankruptcies, starting with the smallest farms.
6.3 Intensifying Competition: The Low-Cost Offensive from Canada and China
The trade war has extremely amplified a pre-existing competitive threat.58 Wisconsin's main competitors are the same species (P. quinquefolius) of ginseng grown in Canada and China (domestically).39
These competing products were already sold at a lower price than Wisconsin ginseng.31 The punitive tariffs of over 100% have turned Wisconsin's 'premium' into an 'unaffordable luxury' for consumers.31 As a result, Chinese importers are rapidly switching to cheaper Canadian or domestic Chinese-grown ginseng to avoid the tariffs.29
This is not just a temporary cost increase. This could result in a permanent loss of market share for the Wisconsin ginseng industry. The tariffs are providing competing products (like Canadian ginseng) with a 'large-scale forced trial' opportunity to steal Wisconsin's core market share. As Will Hsu fears, once consumers "swap to a cheaper substitute, it's very hard then to convince them to go back to something that is more expensive".31 This could mean a permanent erosion of brand value and market share that is unrecoverable, even if the trade war ends.
VII. Diversification and Survival
7.1 'Post-China' Strategy: A Desperate Market Diversification
Facing the effective collapse of the Chinese market, the Wisconsin ginseng industry is desperately seeking other markets for survival.40 This signifies a major strategic shift from a decades-old 'single-buyer' model to a 'diversified portfolio' model.
Target Markets (New Exploration):
Southeast Asia: Vietnam, Singapore, Malaysia. These regions already have a ginseng-consuming culture.59
Other Asia: Japan.40
Europe: United Kingdom.40
United States: Domestic market.38
Specific Actions: In January 2025, 'Alice in Dairyland' and the GBW dispatched a trade mission to three Southeast Asian countries (Singapore, Malaysia, Vietnam).59 This is a direct and rapid response to the 2024 inventory crisis. The visit included aggressive marketing activities such as re-establishing relationships with importers post-COVID-19 and holding the 'Vietnam Wisconsin Ginseng Festival 2025' in Ho Chi Minh City, featuring cooking demonstrations and receptions.59
However, this strategic pivot has clear limitations. Attempts to develop the U.S. domestic market are running into a fundamental cultural barrier, as there is "no herbal culture".40 More importantly, as Will Hsu pointed out, even if all these new markets are combined, it is impossible to replace the massive consumption volume of China.31
Therefore, the current market diversification is a strategy for 'survival,' not for 'growth.' It is not a return to the heyday, but the beginning of a painful process of 'downsizing' the industry and finding smaller, but more stable, niche markets.
7.2 Surviving on the Value of Terroir
Wisconsin ginseng is a unique global product, born from the meeting of North American 'terroir' and 300-year-old East Asian Traditional Chinese Medicine (TCM) demand. The industry is at a historical inflection point, where the contradiction between the prestige of quality granted by 'terroir' and the vulnerability of 'single-market dependency' has exploded due to geopolitical conflict (the trade war).
The future survival of the Wisconsin ginseng industry depends on two key questions:
Short-term Survival: Can the dwindling number of farms (approx. 90) 27 withstand the fatal cash-flow crisis caused by the 4-5 year long cultivation cycle?56
Long-term Survival: Can the 'quality' and 'terroir' branding, represented by the 'GBW Seal' 41, justify a premium price in new markets 59 and fend off low-cost competitors (from Canada and China)?58
In conclusion, the Wisconsin ginseng industry is paying the price for its failure to diversify while resting on its past success. The industry is now on its most fundamental and harsh test bed, forced to rely only on its most essential value: 'quality.'
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