What to Plant in a Florida Greenhouse for High-Value Vegetables

Growing high-value vegetables in a Florida greenhouse can be one of the most profitable and resilient ways to supply restaurants, farmers markets, specialty grocers, and direct customers year-round. Florida offers long growing seasons and intense light, but the combination of extreme heat, humidity, and persistent pests requires crop choices and cultural practices tailored to greenhouse production. This guide explains which vegetables perform best, how to manage climate and pests, and practical planting and marketing strategies to maximize revenue per square foot.

Know the production constraints and opportunities in Florida greenhouses

Florida greenhouse production is defined by a few consistent factors: high ambient temperatures, high relative humidity for much of the year, intense sunlight in summer, and aggressive pest pressure (whiteflies, thrips, aphids, mites). At the same time, winter and shoulder seasons bring full-sun production windows with excellent light and cooler nights that reduce disease pressure and increase vegetable quality.
Key greenhouse control targets you will manage daily:

Daytime temperature: target ranges by crop (see crop sections), but generally 70-85 F for most leafy crops and 75-90 F for fruiting crops.
Nighttime temperature: keep above 55 F in winter; 60-70 F is ideal for many vegetables to avoid stress.
Relative humidity: maintain 50-70% where possible; above 75% increases fungal disease risk.
Light: shade cloth for summer (30-50% depending on roof material); supplemental LED lighting useful in winter for multiple cut cycles.
Airflow and ventilation: continuous cross-ventilation and circulation fans to reduce humidity pockets and control pests.

High-value crops that excel in a Florida greenhouse

Below are crop categories and specific crops that commonly return high revenue per square foot in Florida greenhouse systems, with notes on why they work and what to watch for.

Tomatoes (high-value cherry and specialty types)

Tomatoes are one of the most lucrative greenhouse crops when you target premium markets (restaurants, farmers markets, CSA boxes). Heat-tolerant, determinate and indeterminate greenhouse hybrids designed for warm climates perform best.

Planting details: start transplants 6-8 weeks before moving to benches or trellises. Space indeterminate varieties 18-24 inches apart on a single-stem trellis.
Environment: daytime 75-85 F, nighttime 65-70 F. High light requirement; shade during peak summer afternoons.
Pollination: use bumblebee hives or mechanical vibration to ensure fruit set if pollinators are absent.
Disease and pest notes: watch for blossom end rot (manage calcium, EC, and irrigation), powdery mildew, whiteflies, and tomato yellow leaf curl virus vectored by whiteflies.

Peppers (specialty hot and gourmet sweet peppers)

Peppers, especially hot peppers and premium sweet specialty types, command strong prices. They tolerate heat better than many vegetables and are well-suited to greenhouse trellis or stake systems.

Planting details: transplant 6-10 weeks after sowing. Space 18-30 inches depending on variety.
Environment: daytime 80-90 F, nighttime 65-70 F. Adequate light for dense fruiting.
Market opportunities: hot peppers for value-added products (salsas, hot sauces) increase returns.
Pests/diseases: thrips and pepper weevil can be problems; integrate biological control and sanitation.

Leafy greens and baby salad mixes (NFT or vertical production)

Leafy greens give rapid turnover and excellent dollars per square foot, especially microgreens and baby greens sold to restaurants and subscription boxes.

Production systems: hydroponic NFT, DWC, or vertical racks with shallow substrate.
Crops to prioritize: baby romaine, butterhead, mesclun mixes, tatsoi, mizuna, arugula.
Cycle time: baby leaf harvests in 3-6 weeks; multiple cuttings possible on perennial lettuces.
Environment: daytime 65-75 F, lower nutrient EC (1.0-1.6), pH 5.8-6.2 for hydroponics.
Advantages: year-round harvest, low labor per harvest, predictable yields.

Microgreens (radish, sunflower, pea, kale, mustard)

Microgreens are one of the highest-value crops per square foot because of extremely short growth cycles and premium restaurant pricing.

Crop cycle: 7-21 days depending on species.
System: shallow trays on benches or racks, supplemental lighting in low light months.
Market: chefs and specialty grocers pay premium for consistent, fresh microgreens; packaging and shelf-life matter.
Risk: quick pest/disease spread if trays are not sanitized; humidity control critical.

Herbs (basil, cilantro, Thai basil, parsley)

Fresh culinary herbs are high-value and are harvested continuously, delivering consistent income.

Best choices: Genovese basil, Thai basil, cilantro (grown in cooler months or shaded), chives, oregano.
Harvesting: cut-and-come-again systems maximize production; younger leaves fetch higher prices.
Environment: basil prefers 70-85 F and high light; cilantro bolts quickly in high heat–use shade and plant in cooler seasons or greenhouse microclimates.

Specialty fruiting crops (cucumbers, eggplant, baby zucchini)

High-end greenhouse cucumbers (English/Euro slicers), compact eggplants, and specialty baby squash can be profitable when marketed as premium greenhouse produce.

Training: vertical trellising for cucumbers to save bench space.
Environment: cucumbers like warm conditions 75-85 F and high humidity control to avoid downy mildew.
Value-add: selling as “greenhouse-grown” or pre-packed premium sizes increases price.

Production systems and inputs that increase returns

Choosing the right production system is critical to maximize value per square foot.

Hydroponics (NFT, DWC, or gutters): best for leafy greens, microgreens, and herbs. Faster cycles, higher density, and reduced soil-borne disease.
Drip fertigation in substrate (coco coir, rockwool, or soilless mixes): ideal for tomatoes, peppers, and cucurbits. Allows control of EC, pH, and targeted nutrition.
Vertical racks and mobile benches: multiply productive footprint by using vertical space for baby greens and microgreens.
Shade cloth and greenhouse glazing: use 30-50% shade in summer to reduce heat stress while maintaining light quality.

Climate control and pest/disease management in Florida

Florida’s pests and humidity require proactive integrated pest management (IPM) and environmental control.

Ventilation and fans: maintain continuous airflow; remove humid pockets to reduce fungal pressure.
Evaporative cooling and shade: necessary in summer to drop greenhouse temperature by 10-15 F.
Dehumidification: in small greenhouses, dehumidifiers or increased nighttime ventilation may be needed to drop RH below 75%.
Biological controls: release predatory mites, Encarsia and Eretmocerus for whiteflies, and Amblyseius for thrips. Use Bacillus thuringiensis for caterpillars and Trichoderma for soil-borne fungi where appropriate.
Sanitation: strict tray and bench sanitation, footbaths, and quarantine transplants to prevent hitchhiking pests.

Planting schedule and crop rotation tips

Having a clear schedule keeps production steady and reduces disease pressure.

Plan staggered plantings for continuous harvests: sow microgreens and baby greens weekly; transplant tomatoes and peppers in blocks staggered 2-4 weeks.
Rotate crop families seasonally to minimize soil-borne diseases; in soilless systems, sterilize and replace substrates between major crops.
Use summer for heat-tolerant fruiting crops with heavy shade and cooling; use winter and spring for high-value leafy greens and herbs when quality and yields peak.

Economic and marketing considerations

High-value greenhouse vegetables demand premium presentation and reliable supply.

Packaging and postharvest: invest in proper cooling and packaging. Hydro-cooled or forced-air cooled produce maintains quality for markets.
Market channels: target restaurants (consistent weekly delivery), upscale farmers markets, CSA programs, and specialty grocery stores. Restaurants often pay a premium for consistent, hyperlocal, and specialty varieties.
Record-keeping: track yields per square foot, labor hours, and input costs. Compare revenue per crop; microgreens and herbs often lead on revenue density but require premium market access.

Sample crop mix for a 1,000 sq ft greenhouse (year-round)

Week 1-52: Continuous microgreens/vertical baby greens occupying 200 sq ft of benches and vertical racks for weekly turnover.
Spring/Fall: 200 sq ft trellised tomatoes (cherry and specialty), staggered transplants every 4 weeks.
Summer: 200 sq ft hot peppers and cucumbers with heavy shade and evaporative cooling.
Year-round: 100 sq ft herbs on benches (basil, Thai basil, chives) for weekly harvest.
Buffer/rotation space: 300 sq ft for propagation, fallow cycles, and seasonal trials.

This mix balances quick-turn crops with higher labor-to-revenue yields (microgreens) and longer-term, high-ticket crops (tomatoes and peppers).

Practical takeaways and final checklist

Choose crops that match Florida greenhouse conditions: heat-tolerant fruiting crops and fast-turn leafy greens and microgreens.
Invest in climate control: shade cloth, evaporative cooling, ventilation, and dehumidification are essential to maintain quality and reduce disease.
Use hydroponics and vertical systems to increase revenue per square foot for greens and herbs.
Implement strict IPM and sanitation: biological controls, early detection, and quarantine transplants.
Market intentionally: secure restaurant and specialty retail contracts before scaling production, and present harvests with excellent postharvest handling.
Track metrics: yield per square foot, labor costs per crop, and gross margin to prioritize the most profitable crops for your market.

Greenhouse vegetable production in Florida can be highly profitable when you select the right crops for local climate realities and implement systems that maximize space, control pests, and ensure consistent high quality. Start with a diversified crop mix, scale what pays best for your market, and refine environmental controls and marketing as you build reliable customers who value greenhouse-grown produce.