What to Plant in a Florida Greenhouse for Tropical and Temperate Crops

Growing in a Florida greenhouse gives you the unusual advantage of being able to produce both warm-loving tropical crops and cool-season temperate crops in the same year. Properly managed microclimates, containers, and crop selection make it possible to grow high-value tropical fruits and spices alongside lettuces, brassicas, and strawberries. This guide lays out concrete crop recommendations, environmental targets, scheduling tips, and practical management advice for greenhouse growers in Florida from the Keys to the Panhandle.

Understand Florida’s greenhouse challenge and opportunity

Florida’s outdoor climate varies from USDA zones 8b-11a, but inside a greenhouse you can extend that range upward or downward. The state brings warm humidity, high light in summer, and occasional cold snaps in winter–each factor affects what to plant and when.

Summer heat and high humidity favor tropicals but raise disease risk and can stress heat-sensitive temperate crops.
Mild winters make it easy to grow subtropical/tropical plants year-round in southern Florida, while northern Florida growers may need heating for frost protection and to maintain tropical crops through the coldest weeks.
Intense sun requires shade management; cloud cover and storms can flush humidity and cause cultural issues.

Control options that matter most:

Temperature control: ventilation, shade cloth, evaporative cooling, or heating.
Humidity control: ventilation, fans, dehumidifiers where feasible, spacing to improve airflow.
Light management: shade cloth (30-50% for many tropicals in peak summer) and supplemental lighting for winter temperate crops if you grow bedding plants or start seeds.
Pollination: many tropicals need pollinators or hand pollination in enclosed spaces.

Practical greenhouse environmental targets

Choose targets based on the crop group you plan to grow. You can create zones inside a greenhouse (bench areas, dedicated houses) for different targets.
Tropical crop targets:

Daytime temperature: 75-95degF (24-35degC).
Nighttime temperature: 65-75degF (18-24degC).
Relative humidity: 60-85% (aim for good airflow to prevent fungal disease).
Light: high light, partial shade during peak summer (30% shade cloth for underplantings).

Temperate (cool-season) crop targets:

Daytime temperature: 50-70degF (10-21degC) for cool crops; 60-75degF (15-24degC) for mild temperate fruiting crops.
Nighttime temperature: 40-55degF (4-13degC) for cool crops; 50-60degF (10-15degC) for mild temperate crops.
Relative humidity: 50-70%.
Light: moderate to high; supplemental light in short winter days speeds growth and reduces leggy plants.

Best tropical greenhouse crops for Florida (compact or container-friendly varieties)

These crops perform well in Florida greenhouses when given warmth, humidity, and good airflow. Many will do best as container or dwarf varieties.

Dwarf bananas (Musa spp.) — choose dwarf cultivars such as ‘Dwarf Cavendish’ or ornamental dwarfs. Needs full sun, consistent moisture, and fertile, well-drained medium. Space 3-6 feet for single plants; can be grown in large containers (20+ gallons).
Pineapple (Ananas comosus) — ideal for containers and raised beds; tolerate full sun and heat, prefer slightly acidic, well-drained mix, and take 12-18 months to fruit.
Citrus (dwarf oranges, lemons, calamondin) — container citrus thrives in Florida greenhouse; note susceptibility to citrus greening (HLB) outdoors. Use clean nursery stock, inspect for pests, and consider netting. pH 6.0-6.5, regular feeding with citrus-formulated fertilizer.
Passionfruit (Passiflora edulis) — vigorous vine that fruits well in protected warm conditions. Needs trellis, full sun, and regular pruning for air movement.
Papaya (Carica papaya) — choose compact/columnar cultivars and grow in large pots; sensitive to cold and wind but fast-growing in heat.
Ginger and turmeric — perfect for shaded bench space, rich organic mix, and consistent moisture; harvest rhizomes after 8-10 months.
Dragon fruit (Hylocereus spp.) — a cactus vine that likes heat and good drainage; trellis, hand-pollinate or use nocturnal pollinators if needed for some varieties.
Herbs and spices: basil (Thai varieties), lemongrass, pandan, galangal — many tropical herbs thrive and fetch premium prices.
Tropical ornamentals for market or cut foliage: anthurium, heliconia, bird of paradise — high-value in Florida.

Best temperate/cool-season greenhouse crops for Florida

Temperate crops are ideal for north Florida growers in winter or for greenhouse zones cooled/insulated to reach lower temperatures. They are also great year-round on shaded benches or during Florida winters.

Leafy greens: lettuce, spinach, arugula, mustard, and Swiss chard — grow quickly, harvest in leafy cut-and-come-again cycles. Use cooler benches, moderate N, and 50-70degF recommended.
Brassicas: kale, collards, baby bok choy, broccoli raab — tolerate cool nights and can be grown for spring and fall harvests. Space for airflow to reduce clubroot and fungal issues.
Strawberries (day-neutral and remontant varieties) — container or vertical systems work well. In Florida, use short-day or day-neutral varieties and control flowering with temperature and light timing.
Peas and fava beans — grow in cool months; need trellising and moderate day temperatures (50-70degF).
Root crops: carrots, beets, radishes — perform best in cooler greenhouse months; use deep containers or raised beds with loose mix.
Tomatoes and peppers (temperate/indeterminate varieties) — although often considered warm-season, many tomato and pepper varieties prefer moderate heat and can be grown as temperate crops during mild Florida winter/spring; use disease-resistant varieties and manage humidity.

Scheduling and seasonal strategy for Florida greenhouses

Match crop choices to seasonal greenhouse conditions and your ability to modify them.

Winter (Dec-Feb): Grow cool-season greens, brassicas, and strawberries. Use row covers or small heaters only if temperatures drop below target night temps. Start tropical seedlings indoors for spring transplanting.
Spring (Mar-May): Transition to warmer crops like tomatoes, peppers, and early tropicals. Shade cloth may begin to be needed late spring.
Summer (Jun-Aug): Best for tropicals–pineapple, ginger, bananas, passionfruit. Heavy shade, increased ventilation, and evaporative cooling are crucial to prevent heat stress and diseases.
Fall (Sep-Nov): Run a mix: finish warm-season crops, plant cool-season crops late for fall/winter harvest. Use shading through September and October as needed.

Soil, containers, and fertilizer: practical recipes and tips

Good media and feeding are central to success in containers and raised beds.

Potting mix for most greenhouse containers: 40% peat or coir, 30% compost or well-aged manure, 20% pine bark fines or perlite for drainage, 10% vermiculite for water retention. Adjust pH to 5.8-6.8 depending on crop.
Drainage and aeration: all tropical fruiting plants need free drainage. Use saucers sparingly; lift containers to avoid root rot.
Fertilization: use a balanced soluble fertilizer (e.g., 10-10-10) for establishment. Switch to higher potassium feed for fruiting (e.g., 5-15-30) and higher nitrogen for leafy greens. Apply controlled-release granules for long-term container crops.
Watering: use drip irrigation with emitters sized to container volume or automatic subirrigation benches. Frequent light watering promotes disease; better to water deeply and allow slight surface drying.

Pollination, pruning, and training

Greenhouses often lack native pollinators. Practical solutions:

Introduce bumblebee hives for tomatoes, peppers, and some fruits if regulations allow.
Hand-pollinate with a small brush or electric pollen vibrator for passionfruit, peppers, and banana blossoms.
Prune and trellis vigorously: maintain canopy openness, remove suckers on tomatoes and bananas, and thin fruit for quality on citrus and passionfruit.

Pest and disease management: IPM for greenhouse Florida

Florida’s humidity favors fungal pathogens and insects. Use integrated pest management (IPM):

Sanitation: remove dead foliage, sanitize tools, and quarantine new plants.
Monitoring: sticky cards, regular scouting, and record-keeping.
Beneficials: predatory mites (for spider mites), Encarsia wasps for whiteflies, lady beetles for aphids.
Cultural controls: maintain airflow, avoid overhead watering, and space plants for air movement.
Targeted treatments: use soap, horticultural oils, and selective biologicals before chemical pesticides. Rotate modes of action to avoid resistance.

Varieties and sources: what to look for when selecting plants

Choose dwarf, compact, or container-ready cultivars for greenhouse production to save space and simplify microclimate control.
Pick disease-resistant and low-chill temperate varieties if you need fruit trees or berries.
For tropical fruits, verify rootstock and variety compatibility with container culture and greenhouse conditions.

Quick-start list: recommended plant choices with notes

Dwarf banana — fast, decorative, feed heavily; watch for weevils and mites.
Pineapple — low maintenance in pots; long crop cycle.
Dwarf citrus (Meyer lemon, Calamondin) — great for containers; sensitive to HLB outdoors.
Passionfruit — high-yielding vine; needs pollination and support.
Ginger/turmeric — shade lovers; harvest rhizomes 8-12 months.
Dragon fruit — heat-loving, trellised cactus; needs good drainage.
Lettuce and microgreens — fast turnover, high-value, low heat tolerance.
Kale/collards — cold-tolerant and marketable in winter.
Strawberries (day-neutral) — container or vertical; frost protection in North Florida.
Tomatoes (determinate for containers, indeterminate on trellis) — choose disease-resistant greenhouse varieties.

Final practical takeaways

Zone your greenhouse: create warm, humid zones for tropicals and cool benches or tents for temperate crops rather than forcing every crop in one undifferentiated space.
Start with containers and dwarf varieties to maximize flexibility and reduce soil-borne disease risk.
Control humidity and airflow; many crop failures in Florida greenhouses come from fungal disease due to poor ventilation, not from lack of heat.
Plan staggered plantings and choose short-season crops like lettuce or microgreens to generate consistent income while longer-term tropicals come into bearing.
Embrace IPM: scouting and beneficials will save costs and maintain quality in humid Florida conditions.

With careful microclimate control, the right variety choices, and solid cultural practices you can run a year-round production system in a Florida greenhouse that includes both tropical delicacies and high-value temperate crops.