Indoor vs. Outdoor vs. Greenhouse: The Economics of Cannabis Cultivation

The choice between indoor, outdoor, and greenhouse cultivation is the most consequential financial decision a cannabis cultivator makes. Each method has dramatically different capital requirements, operating costs, yield potential, product quality characteristics, and market positioning. Understanding the economics of each method — and how they interact with your specific market, regulatory environment, and business goals — is essential for making the right choice.

Indoor cultivation is the most capital-intensive and operationally complex method, but it produces the highest-quality product and commands the highest prices. A purpose-built indoor cannabis facility costs $200–400 per square foot to build and equip — a 10,000 square foot facility requires $2–4 million in capital investment before the first plant is grown. Operating costs are dominated by electricity (lighting, HVAC, dehumidification) — a 10,000 square foot indoor facility typically uses 500,000–1,000,000 kWh of electricity per year, costing $50,000–150,000 annually depending on local electricity rates.

Indoor cultivation economics: typical indoor yields are 50–100 grams per square foot per year (accounting for multiple harvests). At a wholesale price of $800–1,200 per pound, a 10,000 square foot indoor facility can generate $1.1–2.6 million in annual wholesale revenue. After accounting for operating costs (electricity, labor, nutrients, supplies) of $600,000–1,000,000, EBITDA margins of 20–40% are achievable for well-run indoor operations. The key drivers of indoor profitability: electricity costs (location matters enormously), labor efficiency, yield per square foot, and product quality premium.

Outdoor cultivation has the lowest capital and operating costs of any cultivation method. Land, basic irrigation infrastructure, and labor are the primary costs. A well-managed outdoor operation can produce 1–3 pounds of flower per plant, with plants spaced 6–10 feet apart. At 500 plants per acre, this translates to 500–1,500 pounds per acre per year. At wholesale prices of $200–600 per pound for outdoor cannabis (significantly lower than indoor due to perceived quality differences), revenue per acre is $100,000–900,000.

The outdoor quality premium challenge: outdoor cannabis has historically commanded lower wholesale prices than indoor cannabis because consumers and dispensaries perceive it as lower quality. This perception is changing as sun-grown cannabis advocates have demonstrated that outdoor cannabis can match or exceed indoor cannabis in terpene content and overall quality when grown with care. However, outdoor cannabis is more susceptible to weather events, pests, and inconsistent quality than indoor cannabis, and these risks must be factored into the economics.

Greenhouse cultivation offers a middle path between indoor and outdoor — lower capital and operating costs than indoor, better quality control and year-round production than outdoor. A light-deprivation greenhouse — which uses blackout curtains to control the photoperiod and trigger flowering on a schedule — can produce 3–4 harvests per year in most climates, compared to 1 harvest per year for outdoor. Capital costs are $50–150 per square foot for a well-equipped greenhouse, significantly less than indoor. Operating costs are dominated by labor and heating/cooling rather than lighting.

The regulatory dimension: some states restrict outdoor cultivation or require specific security measures that make outdoor cultivation impractical. Others have different license types for indoor, outdoor, and greenhouse cultivation with different fees and requirements. Understanding your state's regulatory framework for each cultivation type is essential before making a capital investment decision.

The market positioning question: what does your target market value? Premium dispensaries and consumers who prioritize quality and are willing to pay for it are the natural market for indoor cannabis. Price-sensitive consumers and the value segment of the market are better served by outdoor or greenhouse cannabis. The wholesale market for cannabis oil and extracts is less sensitive to cultivation method — outdoor and greenhouse cannabis can produce excellent extracts at significantly lower cost than indoor cannabis.

The sustainability dimension is increasingly important for both regulatory compliance and consumer preference. Indoor cannabis cultivation has a significant environmental footprint — a 2021 study estimated that indoor cannabis production in the United States generates 15 million metric tons of CO2 equivalent per year, comparable to the emissions of 3 million cars. Outdoor and greenhouse cultivation have dramatically lower carbon footprints. As sustainability becomes a more important consumer value and as carbon regulations tighten, the environmental advantages of outdoor and greenhouse cultivation will become increasingly valuable.