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The 5 Best Polycarbonate Greenhouses [Ranked]

Polycarbonate Greenhouses

​If you are looking for an affordable but rugged and longlasting greenhouse, a polycarbonate greenhouse might be a good choice for you.

Tough and light-weight, UV-treated polycarbonate is an advanced, and top quality paneling material for garden greenhouses. It's easily obtainable in various thicknesses. Polycarbonate greenhouses provide you the clearness of glass, but with extra ruggedness and specialized insulation properties.

Polycarbonate panelings possess a fairly lengthy life-span of fifteen years or even longer in most areas- and you can always swap out the panels should they become defective.

Let's take a look at 5 of the best-selling polycarbonate greenhouses on the market today. 

Comparing Them

Bestseller No. 1
Mellcom 6'(L) x 6'(W) x 6.6'(H) Polycarbonate Portable Walk-in Garden Greenhouse Large Hot House with Adjustable Roof Vent and Rain Gutters,UV Protection Planting House
  • 【Multi-Function Design】: Adjustable roof vent is used to circulate air and allow pollinating insects to enter the greenhouse freely.Rain gutters can drain efficiently and prevent rain from splashing. A movable door makes it easy to get in or close the greenhouse.
Bestseller No. 2
Palram Nature Series Mythos Hobby Greenhouse - 6' x 8' x 7'- Silver
388 Reviews
Palram Nature Series Mythos Hobby Greenhouse - 6' x 8' x 7'- Silver
  • Virtually unbreakable 4 mm twin-wall polycarbonate panels block up to 99.9% of UV rays and diffuse sun light eliminating the risk of plant burn and shade areas
SaleBestseller No. 3
Home-Complete Walk-In Greenhouse- Indoor Outdoor with 8 Sturdy Shelves-Grow Plants, Seedlings, Herbs, or Flowers In Any Season-Gardening Rack
409 Reviews
Home-Complete Walk-In Greenhouse- Indoor Outdoor with 8 Sturdy Shelves-Grow Plants, Seedlings, Herbs, or Flowers In Any Season-Gardening Rack
  • 8 DURABLE SHELVES- The 8 sturdy shelves provide plenty of room for trays, pots, or planters of anything you want to grow. It’s a convenient option for any gardener!
Bestseller No. 4
Palram HG5508PH Hybrid Hobby Greenhouse, 6' x 8', Silver, Plant Hangers Included
242 Reviews
Palram HG5508PH Hybrid Hobby Greenhouse, 6' x 8', Silver, Plant Hangers Included
  • Virtually unbreakable 4 mm twin-wall polycarbonate roof panels Block up to 99.9% of UV rays and diffuse sun light eliminating the risk of plant burn and shade areas
Bestseller No. 5
Palram Hybrid Lean Greenhouse, 4' x 8', Silver
5 Reviews
Palram Hybrid Lean Greenhouse, 4' x 8', Silver
  • 4mm twin wall roof panels block up to 99.9% of UV rays and crystal clear virtually unbreakable polycarbonate panels that provide 90% light transmission

Building a Monticello Greenhouse

Why we like polycarbonate greenhouses

Polycarbonate greenhouses are really trending nowadays. There are some really great resources for helping you make a decision online if you are thinking of purchasing them.

Polycarbonate is a highly rigid plastic which provides some of the best features of glass, but is tougher and impact resistant. The polycarbonate paneling that structures the greenhouses walls provides durable strength and supreme heat retention properties.

The inside of the greenhouses is more effectively insulated, which is obviously conducive to plant growth. Besides this heat retention and insulative property, the multi-wall polycarbonate paneling provides diffuse light that is designed to increase plant growth rates.

The Benefits Of polycarbonate greenhouse paneling

What are customers saying?

  • One user who purchased the MIC polycarbonate and aluminum greenhouse complained that high winds actually bent the structure so that he actually had to reinforce it with plywood.
  • Some of the cheaper greenhouses that are in high wind areas will need to be reinforced with plywood or PVC pipe, especially if they are kept out during the winter and not stored.
  • Another DIY fix for the polycarbonate hot houses is to do some silicone caulking. One reviewer even caulked all of the panels and panesinside of the greenhouse to ensure that the rain did not seep in, and heat did not escape.
  • Another important purchasing consideration is to determine whether your greenhouse comes with shelving or not.
  • Some users chose to place their greenhouses on wood decks where they could easily anchor them.
  • People who bought the Palram Nature Series Hybrid Hobby Greenhouse were pleasantly surprised at how durable it was even when confronting 50 mile-per-hour Oklahoma winds.
  • Depending on the greenhouse you choose, sometimes the instructions are not great quality.
  • Most people who endeavor to operate their own greenhouse usually have some commonsense handicraft capabilities and can figure out how to assemble them without too much trouble. Though it is important to get another person to help you out when erecting them.
  • Another reviewer writes of their Paltam polycarbonate greenhouse that it is relatively sturdy and that it warms up quickly with the sunrise, but they do have to open their event manually at night.
  • Some interesting features that can be included with these styles of green houses are rain gutters, roof vents, magnetic catching doors, aluminum reinforced frames, snow load kits, rust resistant coating as well as the protection of a strong shatter-resistant polymer.
  • People who purchased the Grandiose Elite polycarbonate greenhouse were happy that the packaging was intuitively designed to help the assembly process- there were five boxes that were numbered and each of the instruction steps corresponded so that it was pretty easy to understand how to linearly construct their greenhouse.

Old Favorites

Below are some of our old favorites- check them out and see if they're still in stock!

Polycarbonate GreenhousesOur Rating (1-5)PriceDimensionsWarranty
The Monticello Premium Polycarbonate Greenhouse 4.3$$$7.5' H x 8' W x 12' D10 Years
The Nature Twin Wall Polycarbonate Greenhouse4.6$$7' 1" H x 6.0 W x 8.0 D5 Years
The Glory Polycarbonate Greenhouse 4.5$9' H x 8' W x 12' D10 Years
The Palram Chalet Twin Wall Polycarbonate Greenhouse4.6$$8.5' H x 11.75' W x 10' D5 Years
The Palram Hybrid Polycarbonate Greenhouse4.7$6.83' H x 6.07' W x 4.29' D5 Years

Summing Up

When choosing a greenhouse, users were pretty surprised at how cheap and long-lasting they have become. There's so many more styles nowadays than there used today which means that any backyard hobbyist and horticulturalist can find a design that works for them in their own backyard.

One reason that people have begun returning to backyard garden cultivation with greenhouses is concerned over food security. As the cost of food has risen and the possibility of global calamities seemingly more probable day by day, having a greenhouse with seedlings, tomatoes, and all manner of other vegetables is a great way to protect you and your family and increase their food security.

As well, climate change concerns have made outdoor growing conditions more erratic which is an incentive to purchase a polycarbonate greenhouse and control the environment artificially. Some of the benefits of greenhouse gardening include extending the growing season; having access to fresh vegetables year-round; an ability to protect seed germination from inclement weather; protection of seedlings from insects, parasites and pests; protection of sprouts and seedlings from pesky birds.

Controlling the greenhouse environment can save money on plants as well as enabling you to grow plants in containers or in the ground directly.

If you are considering purchasing a polycarbonate greenhouse, Do some extensive reading prior to purchase and figure out which model is best for you. Important to remember that some greenhouses will require structural reinforcement as well as caulking to keep them in good standing for the long-term.


    The Top 5 Team
     

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