Vertical Farming

Vertical farming is defined by growing crops in multiple stacked layers within an enclosed, artificially lit space, rather than in a single horizontal plane exposed to natural sunlight. This distinguishes it from most greenhouse production, which is climate-controlled but still relies on natural light and typically grows in a single horizontal layer.

Stacked layer / rack system

Growing infrastructure that arranges crops in multiple horizontal tiers to increase production per floor area.

Plant factory

A term sometimes used for fully enclosed, artificially lit vertical-farming facilities.

Light recipe

A defined lighting spectrum, intensity, and photoperiod tuned to a specific crop’s growth stage.

A vertical farm typically combines racking or shelving to stack growing layers, LED lighting tuned to the crop’s needs, a recirculating hydroponic or aeroponic nutrient-delivery system, and climate and carbon dioxide control, with sensors and automation used to monitor and adjust conditions across many layers simultaneously.

• Racking or shelving to stack multiple growing layers
• LED lighting tuned to crop light and photoperiod requirements
• Recirculating hydroponic or aeroponic nutrient delivery
• Climate, humidity, and carbon dioxide control
• Sensors and automation to monitor conditions across layers

Only certain crops suit stacked, artificially lit production economically: fast-cycling, low-profile, high-value crops such as leafy greens and herbs fit well within shallow layer spacing and short growth cycles, while tall or long-season crops such as grain, oilseed, or tree crops are not practical to grow this way at commercial scale.

• Very high potential yield per unit of floor area for suited crops
• Production largely independent of outdoor weather and season
• Can shorten transport distance to urban consumers
• Enclosed environment allows precise control that can reduce pesticide use

• High energy use for lighting and climate control
• High capital cost for facilities and equipment
• Commercially restricted to a narrow set of crop types
• Sensitive to equipment or power failure across an enclosed system

Vertical farms are concentrated in and around cities, often in warehouses or purpose-built facilities, and are more established in regions with reliable electricity supply, high land or transport costs, or challenging outdoor growing climates. They remain a small share of overall horticultural production globally.