Vertical Farming: The Rising Food Production Model of the Future in Cities

Vertical farming is the practice of producing crops in stacked layers inside a controlled environment, rather than across horizontal fields. By moving cultivation indoors and upward, this model of vertical farming compresses a large growing area into a small footprint, making food production viable inside warehouses, shipping containers, and purpose-built towers in dense urban centres. As cities expand and arable land contracts, vertical farming has moved from experiment to a credible component of the food system.

This article defines vertical farming, breaks down the main systems and technologies behind it, examines the costs and benefits, and explains where it fits alongside conventional, field-based agriculture.

What is Vertical Farming?

Vertical farming is a method of growing crops in vertically stacked layers within an enclosed, climate-controlled space. Light, temperature, humidity, and nutrient delivery are managed precisely, which removes dependence on weather and season. Production runs year-round and is concentrated close to the point of consumption.

The defining characteristics are straightforward:

• Crops are grown in stacked tiers to maximise output per square metre of floor space.

• The growing environment is sealed and regulated rather than open to ambient conditions.

• Most systems are soilless, delivering water and nutrients directly to the root zone.

• Proximity to cities shortens supply chains and reduces transport distances.

What are the Types of Vertical Farming Systems?

The main types of vertical farming are distinguished by how they deliver water and nutrients to the plant. Each represents a different balance of cost, complexity, and crop suitability.

• Hydroponics: Roots are suspended in a nutrient-rich water solution. This is the most widely deployed of the vertical farming systems and suits leafy greens and herbs.

• Aeroponics: Roots are suspended in air and misted with nutrient solution, using less water but demanding tighter control.

• Aquaponics: Fish and plants are combined in a closed loop, where fish waste feeds the crops and plants filter the water.

Selecting among these models depends on the target crop, available capital, and the operator's tolerance for system complexity.

Why Vertical Farming is Gaining Popularity Worldwide

Adoption is accelerating because vertical farming addresses pressures that conventional agriculture struggles to meet near cities. The momentum is driven by demographics, land constraints, and demand for reliable local supply.

Key Drivers Behind Urban Food Production Trends

Several forces are pushing food production closer to where people live:

• Continued urbanisation concentrates demand in cities far from traditional farmland.

• Consumer interest in fresh, local, and traceable produce favours short supply chains.

• Year-round, weather-independent output appeals to buyers who require consistency.

• Shorter transport distances cut spoilage and emissions between harvest and shelf.
  
  

UN records that 45% of the world's 8.2 billion people now live in cities, more than double the 1950 share. Additionally, cities are expected to add approximately 982 million residents over that period.

(Source: UN DESA, World Urbanization Prospects 2025)

Challenges of Traditional Agriculture in Cities

Conventional farming faces hard limits in and around urban areas:

• Scarce and expensive land restricts the scale of open-field cultivation.

• Soil degradation and contamination reduce viable growing area near cities.

• Long-distance transport raises cost, emissions, and post-harvest loss.

• Climate variability makes open-field yields increasingly unpredictable.

What are the Technologies Powering Vertical Farming?

Vertical farming technology integrates several engineered systems that together replace the natural growing environment. The core vertical farming equipment includes:

• LED lighting: tuned light spectra drive photosynthesis in place of sunlight and can be optimised per crop.

• Climate control: automated regulation of temperature, humidity, and carbon dioxide maintains ideal growing conditions.

• Nutrient and water delivery: closed-loop systems dose and recirculate solution with minimal waste.

• Sensors and automation: continuous monitoring and AI-driven control adjust inputs in real time and reduce manual labour.

The trajectory of vertical farming technology is toward greater automation, where data systems manage the growing cycle and human effort shifts to oversight and quality control.

What are the Costs and Investment Aspects of Vertical Farming?

Vertical farming is capital-intensive. The economics hinge on high upfront investment offset by dense, reliable output. The main cost categories are:

• Capital expenditure on facilities, racking, lighting, and control systems.

• Operating expenditure dominated by energy, particularly for lighting and climate control.

• Labour, which is reduced through automation but requires specialised skills.

• Maintenance and replacement of equipment over the operating life of the farm.

Energy is the decisive variable. Because lighting and climate control run continuously, the cost and source of electricity determine whether a vertical farm is profitable and how sustainable its footprint truly is.

What are the Benefits of Vertical Farming in Cities?

The vertical farming advantages are most pronounced in dense urban settings where land and freshness command a premium. Key benefits include:

• High yield per unit of floor area through vertical stacking.

• Year-round production independent of season and weather.

• Substantially lower water use through recirculating, closed-loop systems.

• Reduced or eliminated pesticide use in a sealed environment.

• Shorter supply chains that deliver fresher produce with less transport loss.

Sources report that vertical farming systems can reduce water use by up to roughly 90-95% compared with conventional field farming, achieved through closed-loop recirculation of nutrient solution (Source: Gargaro et al. (2025), Comparative LCA of field-grown versus vertically farmed lettuce, Food and Energy Security (Wiley).)

What are the Limitations and Risks of Vertical Farming?

The model carries real constraints that define where it makes sense and where it does not:

• High energy demand can undermine sustainability if power is not low-carbon.

• Significant capital requirements raise the barrier to entry.

• A limited crop range, concentrated in leafy greens and herbs, restricts what is currently economic.

• Technical complexity creates dependence on reliable systems and skilled operators.

Vertical farming complements rather than replaces field agriculture. Staple crops such as grains and most field commodities remain far more economic to grow at scale in open land.

How Doktar Supports Smart and Sustainable Farming

Whether crops grow in a controlled vertical system or across open fields, the same principle applies: precise data drives better decisions and lower resource use. Doktar develops the digital intelligence that underpins sustainable production across the value chain.

Field-based agriculture remains the foundation of the global food supply, and its sustainability begins with the ground itself. Doktar's Digital Soil Analysis delivers rapid, in-field measurement of soil properties, enabling growers to optimise inputs, protect soil health, and raise yield without waste. This same data-first approach links controlled-environment production with regenerative field practice into one coherent, climate-aligned system.

Frequently Asked Questions About Vertical Farming

What crops are best suited for vertical farming?

Leafy greens, herbs, microgreens, and some fruiting vegetables such as strawberries and tomatoes are best suited, because they grow quickly, stay compact, and command a price that supports the high cost of indoor production.

How does vertical farming compare to traditional agriculture in water usage?

Vertical farming uses far less water than open-field farming because closed-loop systems recirculate and reuse the nutrient solution rather than losing it to soil and evaporation.

What is the role of automation in reducing labor costs in vertical farming?

Automation handles repetitive tasks such as dosing nutrients, adjusting climate, and monitoring crop health, which lowers the labour required per unit of output and shifts human work toward supervision and quality control.

Conclusion

Vertical farming is establishing itself as a durable part of urban food production, not a passing trend. Its strength lies in dense, reliable, resource-efficient output close to the consumer, and its limits lie in energy demand, capital cost, and crop range. The model works best as a complement to field agriculture within a broader, data-driven food system.

That broader system is exactly where Doktar operates. By engineering the digital intelligence behind precision agriculture, from controlled-environment production to Digital Soil Analysis in open fields, Doktar enables growers and agribusinesses to raise yield, conserve water, and meet sustainability goals. To see how data-driven tools support smart and sustainable farming across every growing model, explore Doktar's platform.

References: 

• United Nations Department of Economic and Social Affairs (UN DESA), Population Division, "World Urbanization Prospects 2025: Summary of Results" (November 2025): https://www.un.org/development/desa/pd/content/world-urbanization-prospects-2025-summary-results

• Gargaro, M. et al. (2025), "A Comparative LCA of Field Grown Lettuce Versus Vertically Farmed Lettuce," Food and Energy Security, Wiley Online Library: https://onlinelibrary.wiley.com/doi/full/10.1002/fes3.70117

• FoodBev Media, "Environmental Case for Vertical Farming Strengthens as Study Shows Potential Benefits for Agriculture" (University of Surrey and University of Aberdeen research): https://www.foodbev.com/news/research-environmental-case-for-vertical-farming-strengthens-as-study-shows-potential-benefits-for

• "Environmental Performance of Fruiting Vegetable Production in Vertical Farms," ScienceDirect (2025), citing Graamans et al. (2018) on 95% water-use reduction: https://www.sciencedirect.com/science/article/pii/S2352550925000843