Best Greenhouse Plastic of 2020: Reviews & Buyer’s Guide

1. Grower’s Solution2. Farm Plastic3.  Grower’s Solution
Grower’s Solution Best Greenhouse PlasticFarm Plastic SupplyGrower’s Solution Greenhouse Clear Plastic Film
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Greenhouses are buildings, whether small or large, which provide optimal conditions for the growth of various types of plants, including vegetables and flowers. These structures also come in different sizes, and they can be made in a simple way or high-tech.

The high-tech greenhouses have numerous gardening advancements to them, such as ventilation & heating systems, as well as devices that work to boost the level of carbon dioxide in the atmosphere.

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These houses are reasonably priced and are made from different durable materials that can last for years. Structures made from the best greenhouse plastic are appreciated more by the modern-age farmer.

They, however, come in different forms and brands. Picking the best one might be an overwhelming experience for an average shopper, especially for someone who is just starting.

This post seeks to cover all the nitty-gritty surrounding plastic greenhouses, with a comprehensive buyer’s guide and a review of some of the best plastics for greenhouses.

Benefits Of A Greenhouse

Owning a greenhouse has the potential to turn your gardening hobby into pure passion. This is because of the numerous advantages that having a greenhouse comes with.

It is beneficial to everyone who loves plants, regardless of the time you spend farming daily or weekly. Let’s dive into some of the most significant benefits of owning a greenhouse:

1. Multiple Uses

One of the biggest advantages of owning a greenhouse is its flexibility and the ability to support diverse flora. Some of the plants which do so well in greenhouses are organic vegetables, exotic plants, flowers, bulb plants, and all types of seedlings.

You can either grow a variety of produce at the same time if you wish to or you can interchange them after every year or planting season. The owner has the full choice of whatever they want to be grown under greenhouse conditions, and the list to pick from is not limited.

2. An All-In-One Gardening Venue

One of the major concerns many people have when farming various plants is where to keep their equipment. A greenhouse offers you space to store your products under the right conditions until when you will next need them.

You don’t have to spend extra cash building a garden shed, as you will have enough room not only to plant your vegetables and flowers, but also store your supplies, tools, and other gardening equipment.

3. Consistent Farming

A greenhouse helps farmers to avoid the troubles others undergo due to ideal planting seasons, extreme weather conditions, etc. As long as you have all that is required for greenhouse gardening, you can evade and ignore all the problems which arise due to excessive rainfall, drought, scorching sun, etc. You will have the ability to plant anything, regardless of the season.

4. Plant Protection

One of the biggest issues farmers face is, as stated above, extreme weather conditions and severe pest infestation. Seasonal pests such as locusts, spider mites, and tent caterpillars are the most common crooks when it comes to destroying plants.

Birds also top this list of some of the animals which tamper with the growth of various plants. Taking all these into consideration, it is no brainer that a greenhouse helps prevent all these damages from occurring by providing a protective cover to your plants.

5. Optimum Environment For Gardening

If you are a seasoned farmer, you will understand that the majority of plants, especially vegetables and flowers require a warm and humid environment for them to thrive. Structures made from the best greenhouse plastic ensures that the plants get these ideal conditions for them to grow.

The main objective of greenhouses is to ensure that a reasonable amount of heat and water vapor is secured within the structure.

6. All-Season Gardening

With a greenhouse, you are in charge of not only what to grow but also when to do so. You do not have to undergo the long waits for the perfect planting season for the different types of plants. Moreover, you are in control of the temperatures and watering, so you can plant earlier or soon after the others have planted.

7. Save Money

Having a greenhouse can save you lots of money in many ways. For starters, you may end up spending a lot in the purchase of seedlings to grow in your standard garden. However, due to the many adverse conditions which prevent the plants from thriving, you may be forced to purchase more.

Since these plants grow in a greenhouse, the rates of survival increase; hence, there will be no need for you to buy the seedlings numerous times.

8. Makes You Money

If your greenhouse is large enough, you can sell some of the products you grow to make extra money. You do not even have to market your products far and wide as your immediate neighbors can be one of your key customers.

9. Seamless Customization

Greenhouses come in different types and shapes. When building using the best plastic for a greenhouse, you can easily customize your structure to how you want it to be and make it take care of whatever plants you have in mind.

You can easily decide on how many doors you want, the placement of plants, where the storage area will be, among many others.

10. Grow Plants Free From Toxic Pesticides

Plants grown in greenhouses, especially fruits and vegetables, are more preferred as they are more organic, unlike other types of plants. Many commercially raised crops are exposed to too many toxic pesticides, which can be avoided when one uses a greenhouse instead.

These are but a few reasons why you should start looking for a greenhouse for your gardening needs. However, it should be noted that as much as these structures provide optimal conditions for the growth of plants, it is your responsibility to provide water. This is because the greenhouse is enclosed, and rainwater does not penetrate through the roof or walls.

11. Understanding Greenhouse Plastic

A greenhouse is a temporary structure that can be easily customized, taken down, or moved to a different location. This is made possible due to the material used in its construction – plastic.

Using a solid sheet panel of glass, polyethylene, or acrylic means that the structure is permanent, and making customizations or moving it from the current location becomes tricky.

Furthermore, the types of plastic you decide to put on your greenhouse have varied impacts on your plants and the amount of labor required during installation and replacement.
So, what exactly is meant by greenhouse plastic?

Plastic-based greenhouses are much easier to build, lighter, and cost much less money when making, than glass-based models. Just like the glass would, the plastic is used to secure the heat and humidity inside the structure to provide optimal conditions for the plants to grow, no matter the weather or season.

However, not all types of plastic can be used to build greenhouses. The best plastic for a greenhouse is much more durable than the standard ones.

Using regular plastic for a greenhouse brings more damage than good to the functioning of the structure. Besides, its ends tend to fray at times, and should there be any small cuts made, it can gradually grow into a sizeable noticeable tear.

Standard plastics are also not made to withstand the elements when exposed to extreme conditions. Greenhouse plastic is made by knitting it together rather than making it out of a solid sheet; hence, it becomes more durable and can withstand extreme weather conditions and resist tear.

Relationship Between Greenhouse Plastic And The Climate

There are many options when trying to select the best plastic for a greenhouse. However, before even delving into finding out the best type for you, it is paramount to take the climate of your area into consideration.

For someone who resides in an area where the temperatures are generally cold, wet winters, but are without hard frosts, a lightweight greenhouse plastic would be ideal for them. Such climates are suitable for planting, even without a greenhouse. However, a greenhouse is recommended for early seed starting.

If you frequently receive hard frosts in a wet, cold region, you might need to get a thicker plastic. The same case applies when there is snow in your area, as it should be able to slide off upon contact with the plastic easily.

Furthermore, the plastic ought to be thick enough to keep off the cold air from affecting the plants. It is essential that even if you are looking for a thick plastic for your greenhouse, it should still allow the winter sunlight to penetrate and reach the plants.

Lastly, for an area that frequently gets heavy snow, the average weight of the snowpack should be considered. If the snow does not fall off on its own, you may have to manually clear it to make room for the sunlight to penetrate. The warmth inside is still a requirement, so something which is heavily insulated and is rigid is probably your best shot.

Types Of Greenhouse Plastic

There are four standard kinds of greenhouse plastic. They are all highly durable and can take you anywhere between two and three years without having to change them. They can all get affected by certain extremities such as tornadoes, frosting, hail, hurricanes, among other factors that may make their lifespan shorter.

All in all, to know which the best greenhouse plastic for you is, it is vital to understand the various types you can choose from:

1. Polyethylene

Polyethylene is the most popular type of greenhouse plastic as the majority of people use it and numerous reasons back this. For starters, it is relatively inexpensive compared to other types of plastic. Polyethylene is made from a material that is readily available and is not as hard to repair.

When purchasing this type of product, it is recommended that you look for one which has been branded as ‘greenhouse plastic’ or ‘agricultural plastic.’ This is because there are other utility-grade Polyethylenes which may not be as practical and durable.

The main problem associated with such plastic is that the services you get from it are directly proportional to the amount of money you pay for it. The fact that it is inexpensive may have its durability compromised.

Just like glass greenhouses would, some of these polyethylene plastic greenhouses have been made with specific chemical properties, which ensure that condensation levels are reduced. Furthermore, they can reflect radiated heat back into the structure, making them more energy-efficient.

It is also important to note that ultraviolet light can quickly degrade a polyethylene film. That is why it is highly recommended that you get one that has UV protection embedded in it.

2. Copolymer Plastic

Next up on the list is Copolymer plastic. It is a notch higher than polyethylene in regards to its durability and strength. The only problem with such plastic is that it tends to get frail and brittle after about three years and can be subject to breakage.

However, if you have some extra cash from your budget, you might opt for a pricier version, which is as clear as glass, lasts longer, but you might have to dig deeper into your pocket.

3. Polyvinyl plastic

Polyvinyl plastic is more expensive compared to polyethylene. This can be attributed to the fact that it is heavier and has a longer life cycle. Polyvinyl Chloride (PVC) is the same plastic that is used in the manufacture of pipes, and that is why with proper care and cleaning, you may not have to replace it before five years’ end.

4. Polycarbonate Plastic

Polycarbonate plastic is the most durable and of course, the most expensive of all greenhouse plastic. It can be described as a double-wall polyethylene plastic due to its heaviness.

It is ideal for those who wish to have something a bit rigid but not made of either glass or acrylic. Such materials provide the greenhouse with more insulation while still allowing enough light to penetrate.

Due to their rigidity, polycarbonate plastic greenhouses last longer – up to a decade without any wear or tear. Furthermore, they are probably the best option for someone who lives in very cold areas can have.

How To Choose The Right Greenhouse Plastic

Choosing the best greenhouse plastic is not an easy task, as there are too many options available on the market. If you are starting, you should not worry much as there are means you can use to narrow down your list.

All types of plastic might not work for you, depending on various factors, such as your needs and the weather. That said, take a look at some of the factors you need to consider before settling on a particular type of greenhouse plastic or brand.

1. Durability

The material which makes the plastic is vital when preparing to build your greenhouse. For how long do you intend to keep it? Would you still need to plant the next season, or it is just a one-time project? How is the weather in your region? Is it too extreme (either hot or cold), or is it only moderate?

These are a few questions you need to ask yourself while in pursuit of the best plastic for greenhouses. This is because they all point to one thing – the durability of the material. Plastics such as polyethylene naturally degrade over time as they are exposed to sunlight and heat, regardless of how durable they appear at first.

If you want to keep the structure with you for a somewhat extended period, you should narrow down your list to other plastics such as polyvinyl or polycarbonate.

2. Thickness

As a rule of thumb, greenhouse plastic should have a thickness of at least six millimeters. Plastic that is not thick enough would not last you the entire planting season, let alone various seasons. More thickness would be required for better insulation.

3. Transparency

While this might sound axiomatic to you, but it is a rather important factor to consider. Colored greenhouse plastic (especially green ones) are no longer familiar to many farmers. This is because transparent plastic is much better for the growth of plants.

Sunlight will have some trouble reaching the plants if the plastic is colored for photosynthesis to take place.

However, transparency isn’t a primary concern today as the majority of greenhouse plastic is transparent, but on various levels. The biggest issue is finding the correct balance between the transparency of the plastic and how thick it is. One might be considered at the expense of the other, and so it is vital to have them both at optimal levels.

4. Weight

Thick plastic sheets are more durable and are, by default, heavier. You should understand that the plastic sheet does not provide any structural integrity, meaning that all the weight falls on the frames of the greenhouse.

Before you set out to purchase the plastic, first consider how sturdy the structures are and whether or not they will support your preferred plastic.

5. Condensation Control

Many factors might reduce the effectiveness of your greenhouse. There is an imbalance caused by the outside cold weather and the warm conditions inside the greenhouse during winter. If this happens, condensation might take place in the inner surface of your greenhouse plastic sheet.

These condensate droplets bring with them various disadvantages, such as inhibiting the sunlight from reaching the plants. They might also fall on the plants disturbing the excellent ecosystem you had initially created.

At other times, these droplets falling on your plants might also be responsible for the growth of mildew, which will not end well for your plants.

When shopping, it is advisable that you look for plastic that has a hydrophilic radical. An example of such is -COOH (carboxylic acid), which aids in the prevention of condensates from falling onto the plants.

They are instead made to stick to the surface and evaporate easily, leaving the plastic clear. Plastics that have hydrophobic radicals such as the ones available in the -CH groups should be avoided as they repel the droplets.

6. Heat Loss And Gain

This is a feature to look out for, especially when you live in an area with extreme temperatures – both cold and hot. If you are in a cold area or planning on using the greenhouse during winter, plastic insulation layers and additives would save you a lot. Some advanced plastics have infrared insulation layers which help in keeping the heat inside.

For hot areas and during summers, it would be recommended to protect your plants from overheating. You would need plastic that would block some infrared spectrum, keeping your plants safe.

7. Layers

Greenhouse plastic can be single, double, or triple-layered. Whatever you choose, it should correlate with your climate and also what you wish to grow. Individual layers are just fine, but double layers come in handy when you are experiencing extreme weather.

They also help when you are trying to grow very sensitive plants that depend on an optimal environment to survive. Having a greenhouse built and maintained is not an easy task, but all this can be made even easier for you if you have the right brand.

Numerous brands are depicting themselves to have the best plastic for greenhouses, but their reviews speak contrary to what they advertise.

It is also hard finding honest reviews on the internet, and that is why you ought to look for unbiased review sites, such as this one, which will guide you to nothing short of the best. Listed below is a list of the fifteen best greenhouse plastic you can choose from.

Top 15 Best Greenhouse Plastics 2020

1. Grower’s Solution Greenhouse Clear Plastic Film

Grower’s Solution Best Greenhouse PlasticWith its headquarters at Cookeville, TN, Grower’s Solution has managed to get into the greenhouse business smoothly, and it came with a bang. The company has managed to come up with something which can easily pass as the best plastic for greenhouses.

This product is made from polyethylene, with a 6 mils thickness, making the company confident concerning the durability of this plastic, which prompts them to offer a solid 4-year warranty on it.

Pros

  • Treated for UV protection
  • Reasonably priced
  • Has infrared additive
  • 6 mils thick
  • Fairly durable
  • Provides 91% light transmission

Cons

  • This product only comes in two sizes
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2. Farm Plastic Supply

Farm Plastic SupplyIf you are in search of a good greenhouse which will cover more area without having to break the bank, Farm Plastic Supply is your best shot. It is thick enough to protect your plants from the harsh weather and is UV protected. You get a little more light diffusion than our top pick, but it is otherwise comparable.

Pros

  • UV protected
  • 6 mil thickness
  • Clear to allow light to get through

Cons

  • Determining the inside and outside parts of the film is hard, yet crucial.
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3. Grower’s Solution Greenhouse Clear Plastic Film

Grower’s Solution Greenhouse Clear Plastic FilmEven though it is a relatively new company to the game, Grower’s Solution has continuously stunned the agricultural world with its cutting edge technological advancements. Their products are not only long-lasting but also live up to their promises. The material used in the manufacture of this particular greenhouse plastic is polyethylene, which is the industry standard material for their products.

This product not only meets the industry demands, but it also comes with top-notch durability features, which boost its defenses against punctures. Grower’s solution still goes the extra mile to ensure that your plants are safely protected by treating this plastic for protection from UV radiation.

Special infrared additives also add to the vast array of features this product boasts of, enabling it to make to the list of the best greenhouse plastic.

Pros

  • Made of polyethylene
  • Treated for UV protection
  • 4 years of warranty
  • 91% light transmission guaranteed

Cons

  • Can only be bought in two sizes
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4. Frost King P1250R Super Strength High-Density Drop Cloths

Frost King P1250R Super Strength High-Density Drop ClothsFrost King products are made to be of multi-purpose use, and the P1250R drop cloth is no exception. It is made of high density to offer protection to your plants regardless of the weather. Furthermore, this is a very customizable greenhouse plastic due to its cut-to-size drop nature.

Pros

  • Can be customized for any design
  • Made from thick material

Cons

  • It is fragile and can easily suffer wear and tear
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5. TRM Manufacturing 610C Plastic Sheeting

TRM Manufacturing 610C Plastic SheetingIf you live in an area where a greenhouse would be more beneficial for pest control and to fine-tune the internal climate for optimal growth of plants, then this is for you. This 6 mils utility-grade polyethylene is a little more durable, but it is not meant for many consecutive seasons.

It is not made to withstand the sun for a long time; hence, this is easily regarded as the best single-season greenhouse plastic. You can get more out of the plastic should you use it for one season, clean and store it well, before you use it after a while.

Pros

  • 6 mils construction grade
  • All-purpose cover – dust barrier, vapor barrier, etc.

Cons

  • It is not long-lasting – only suitable for one season
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6. Frost King P1025/6W Polyethylene Sheeting

Frost King P1025 6W Polyethylene SheetingThe P1025/6W Frost King plastic sheet is handy when it comes to plants, apart from its many other domestic uses. It offers protection from the elements and harsh sunlight.

You can pick either the lighter or heavier models depending on what you wish to plant or how big your greenhouse. It is at least 6 mils in thickness and has top-notch insulation features.

Pros

  • 6 mils thick
  • Good insulation capacity

Cons

  • The plastic is not as clear as the rest of the products on this list.
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7. Sunscover Greenhouse Plastic Film

Sunscover Greenhouse Plastic FilmThe fact that this product is made at a region where the sunlight is harsh and the summers are somewhat brutal, makes it no surprise that it has powerful protective features.

From UV protection to anti-dust features, this greenhouse plastic from Sunscover is made to help all farmers be able to plant without any problems with their plants.

You cannot be concerned about any tears as it made from polyethylene and is 6 mils thick. Metallocene has also been included in this product to form more regular bonds; hence, it makes this one of the best plastics for greenhouses due to how strong it is.

Pros

  • Fairly priced
  • Made of polyethylene
  • Treated with UV protection
  • 4-year warranty
  • Eight different sizes
  • Anti-dust additive added

Cons

  • Not as clear as many other products on this list
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8. EcoGardener Greenhouse Clear Plastic Film

EcoGardener Greenhouse Clear Plastic FilmThis product from ECOgardener meets all consumer requirements of the minimum thickness of 6 mils and excellent light transmission to maximize the growth of the plants.

Just like many other products on this list, this greenhouse plastic by ECOgardener has also been UV stabilized and treated, making it suitable for uninterrupted usage of up to four years. The heavy-duty clear plastic also promises an anti-condensation feature.

Pros

  • Offer the perfect conditions to grow and protect agricultural produce
  • Superior strength and clarity
  • Weather resistance
  • All-season product

Cons

  • Fairly expensive
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9. Sunview Greenhouse Clear Plastic Film (16X25)

Sunview Greenhouse Clear Plastic Film (16X25)While it is inexpensive and straightforward, it is one of the best greenhouse plastic available. It is made of polyethylene material, which is 6 mils thick while allowing enough light to penetrate. Furthermore, this product has been IR and UV treated to ensure the best environment for your plants.

Pros

  • 6 mils thick
  • UV protection
  • IR treated

Cons

  • The greenhouse frame has to be treated if it is made of PVC with primer before installing this sheet.
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10. Sunview Greenhouse Clear Plastic Film (12X25)

Sunview Greenhouse Clear Plastic Film (12X25)Made of low-density polyethylene material, this product is durable with superior clarity and strength. Moreover, it is UV treated to offer your plants enough protection. The higher light transmission it has supports photosynthesis while still protecting them from the elements.

Pros

  • Durable polyethylene product
  • UV treated
  • Enough light transmission for photosynthesis

Cons

  • The material can easily get damaged.
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11. A&A Green Store Greenhouse Plastic Film (12X25)

A&A Green Store Greenhouse Plastic Film (12X25)A&A Green Store is known for manufacturing top-notch agricultural products, and this is one of their most sought after greenhouse plastic. It is not only clear but has superior strength and toughness. This makes it resistant to extreme weather conditions and tear. To help in the growth of your plants, this plastic is UV treated and provides a higher light transmission.

Pros

  • UV treated
  • Tough and durable – tear-resistant
  • Higher light transmission for photosynthesis

Cons

  • It is not as transparent as many other top brands
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12. Shans Greenhouse Clear Plastic

Shans Greenhouse Clear PlasticThis product has been rated accordingly by farm experts, and its deliverability does not miss the mark at any point. While the company has provided not much information concerning the product, SHAN’S has displayed its knowledge in the manufacture of the best plastic for greenhouses, even offering a 25% warranty of five years.

SHAN’S provides information concerning their quality of products, having almost everything any customer would be looking for and still pick this particular brand. This product is made from polyethylene plastic, six mils thick, and comes with a 4-year warranty.

Apart from clearly marked labels that indicate which the inner parts and the outer parts are, this plastic is also treated with UV protection.

Pros

  • Treated with UV protection
  • Offers 92% of light transmission
  • 4-year warranty
  • Made of polyethylene
  • Highly durable

Cons

  • It only has a 12 ft. version, no larger size.
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13. Bootstrap Farmer Greenhouse Plastic (28X80)

Bootstrap Farmer Greenhouse Plastic (28X80)When the idea of greenhouse tunnels came, they became more appreciated by people due to their practicality. While they are conceived to be used for any size or shape of any greenhouse, the 11 dimensions offered by Bootstrap were precisely made for a tunnel.

This is what makes the Bootstrap Farmer unique compared to the other products on this list, as they not only appeal to those who are searching for tunnel greenhouses but also safety features such as UV protection.

Pros

  • Made of polyethylene
  • 6 mils thick
  • Treated for UV protection
  • 4-year warranty
  • 90% light transmittance
  • 20% light diffusion
  • 5-layer technology
  • Anti-dust protection

Cons

  • It is quite expensive
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14. Bootstrap Farmer Greenhouse Plastic (12×26)

Bootstrap Farmer Greenhouse Plastic (12x26)Bootstrap Farmer is one of the latest entrants to the world of greenhouse plastic, and they have already displayed lots of innovation in their work. This company was started by a restaurant owner who wished to supply its customers with fresh greenhouse supplies. Searching and failing to find the ‘perfect’ greenhouse plastic, the idea of this company was birthed.

This plastic is quite flexible enough to be conceivable to any shape or size of the greenhouse. You can pick one of the eleven dimensions offered by the company for you to design your greenhouse tunnel. The cuts you get from Bootstrap Farmers are also way more diverse compared to many other renowned companies.

Apart from the standard UV protection, this product has several other features that may not be common to other products. Apart from the rare anti-dust technology used, there is an ultra-rare 5-layer technology that brings forth more durability.

Pros

  • Made of polyethylene
  • Options of 11 different sizes
  • 6 mills thick material
  • Treated with UV protection treatment
  • 90% light transmittance
  • 5 layer technology which supports anti-dust protection

Cons

  • Quite pricy
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15. A&A Greenhouse White Plastic Film (10X25)

A&A Greenhouse White Plastic Film (10X25)This greenhouse plastic from A&A is built for prime strength and toughness, backed by its 6 mils thickness. It is UV treated and provides enough light transmission for photosynthesis.

Pros

  • Superior toughness
  • UV treated
  • 6 mils thickness
  • Good light transmission

Cons

  • Quite pricy
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Best Greenhouse Plastic – Final Thoughts

Despite the simplicity offered by plastic sheets, you will have to put a lot of thought into how you pick the right product. No brand manufacturer is perfect, but you can use our guidelines to narrow down your list to find the best greenhouse plastic.

Finally, while you put more effort into finding the best plastic, you should also consider watering and fertilizer options, especially now that there will be no rainfall hitting the plants directly.