Find the right blackout tarp for greenhouses to control light cycles, protect plants, and extend growing seasons. This guide compares five top options, highlighting who each product is best for, plus practical buying tips. Ideal buyers include hobby gardeners, small commercial growers, and DIY greenhouse builders seeking durable, UV-resistant, and reflective light-deprivation covers.
Summary of selected products:
- Farm Plastic Supply Panda Film Light Deprivation Greenhouse Cover — 32′ x 50′ — 6 mil — 100% blackout
- Farm Plastic Supply Panda Film Light Deprivation Greenhouse Cover — 24′ x 50′ — 6 mil — 100% blackout
- Farm Plastic Supply Panda Film Light Deprivation Greenhouse Cover — 10′ x 25′ — 6 mil — 100% blackout
- VIVOSUN Black and White Panda Film — 10′ x 50′ — 5.5 mil — 100% blackout
- Grow1 Black & White Light Deprivation Greenhouse Film — 24′ x 100′ — 9 mil
Farm Plastic Supply Panda Film 32′ x 50′ Greenhouse Cover
Best for medium-size greenhouses needing reliable darkness and light reflection control. This 6 mil blackout tarp features black on one side and white on the other. The white exterior reflects light, while the black interior creates a dark environment, promoting extended dark periods for flowering or seed germination. It’s designed to withstand sun exposure with a UV inhibitor for longevity. The 32′ x 50′ footprint suits many hobby or small commercial setups and offers strong tear resistance typical of Farm Plastic Supply products.
Who it’s best for: Home gardeners or small farms seeking a durable, easy-to-install blackout solution with strong light control and good sun resistance. Why selected: A balanced size and proven 6 mil thickness deliver dependable darkness without excessive weight. Limitation: Larger sheets may require multiple panels for some structures, possibly increasing seams.
Farm Plastic Supply Panda Film 24′ x 50′ Greenhouse Cover
Best for growing spaces that require a lighter footprint while maintaining blackout quality. This 24′ x 50′ version uses black on one side and white on the other for effective light deprivation and exterior light reflection. The 6 mil thickness offers solid durability and UV resistance, making it suitable for longer use over multiple seasons. It pairs well with smaller greenhouses or hoop houses.
Who it’s best for: Growers upgrading a compact greenhouse or hoop house. Why selected: Similar construction to larger sheets at a more space-efficient size. Limitation: Coverage may require more overlapping panels for very wide structures.
Farm Plastic Supply Panda Film 10′ x 25′ Greenhouse Cover
Best for small or personal projects where space is limited, this 10′ x 25′ sheet provides 6 mil blackout capabilities with black/white dual surfaces. The lightweight design supports simple installation while offering UV-influenced longevity. Suitable for seed-starting frames or compact greenhouses that need dependable darkness without a heavy sheet.
Who it’s best for: Beginners or individuals with small grow tents or compact greenhouse setups. Why selected: Compact size makes handling easier, with the same light-control benefits as larger sheets. Limitation: Coverage is limited; may require multiple panels for larger enclosures.
VIVOSUN Black and White Panda Film — 10′ x 50′
Best for warm houses or winter stabilization where reflecting light back toward plants helps retain warmth. This 5.5 mil blackout tarp is made from high-strength poly and features white on the exterior with black interior to ensure darkness inside and efficient reflectivity. The material’s durability suits repeated seasonal use and longer-term installations.
Who it’s best for: Growers needing a balance between light control and heat retention. Why selected: The 5.5 mil thickness provides durability without excessive weight. Limitation: Slightly thinner than some 6–9 mil options, so handle with care during installation.
Grow1 Black & White 9 Mil Greenhouse Film
Best for larger greenhouses or hoop houses needing extra durability and robust light control. The 9 mil thickness adds tear resistance and long-term resilience, while the black/white dual sides support intense darkness and high reflectivity. The patented reinforced woven design enhances strength, making it a solid option for demanding setups.
Who it’s best for: Larger commercial or serious hobby greenhouses that require a heavy-duty, long-lasting blackout solution. Why selected: Highest thickness among the listed options, delivering enhanced durability. Limitation: Heavier and potentially more rigid, which can complicate handling during installation.
Buying Guide
- What thickness do I need? Thickness ranges from 5.5 mil to 9 mil. Thicker films offer higher tear resistance and longer life but are heavier and less flexible for small setups.
- Which color configuration helps my crops? Black on one side and white on the other provides both darkness inside the greenhouse and light reflection for exterior surfaces. This combination improves light management and heat balance.
- What size should I choose? Match sheet dimensions to your greenhouse footprint. Larger sheets reduce seams but may be harder to install. Smaller spaces can work with multiple panels but require careful seam management.
- How important is UV resistance? UV inhibitors help longevity in sun-exposed environments, reducing degradation and replacement frequency.
- Is durability a priority? For high-traffic or long-term installations, prioritize thicker films (6–9 mil) with reinforced woven designs for enhanced strength.
- Do I need extra features? Look for anti-drip properties, waterproofing, and reinforced weaving if you operate in humid climates or require water resistance.
Frequently Asked Questions
- What is blackout tarp used for in greenhouses? It blocks or reduces light to regulate growth cycles, promote flowering, or warm plant environments during colder periods.
- Are white and black sides important? Yes. The white side reflects light outward, reducing heat on exterior surfaces, while the black side creates darkness inside to control light exposure.
- How long will these covers last? Longevity depends on thickness, UV exposure, and climate. Thicker films with UV inhibitors generally last longer in sunny conditions.
- Can I install blackout film on any greenhouse frame? Most frames compatible with standard poly sheeting can accommodate blackout film, but verify dimensions and sealing methods for your structure.
- Should I use a single large sheet or multiple panels? Large sheets reduce seams and simplify installation for big greenhouses; smaller sheets are easier to handle in tight spaces.
- Is maintenance required? Periodic inspection for tears or loose seams helps maintain reliable light control and prolongs the life of the film.