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" On peut tout cultiver ici au Canada : tomates, pommes de terre, poivrons verts, jalapeños, tomates cerises."

Tyler Stuart
Ontario, utopie

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⭐⭐⭐⭐⭐

" Cela a prolongé notre saison de croissance de trois mois. Nous semons les plants de tous nos jardins en serre."

Brian Whitson
Colorado, Colorado Springs

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⭐⭐⭐⭐⭐

"Greenhouse has helped a lot to keep my citrus trees and other plants alive during the cold season. I have a lot of citrus trees happily growing during this crazy cold season... lots of blooming and new fruits."

Myen Smart
Idaho, Boise

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Heavy Duty Greenhouses Built for Tough Weather

Planta Greenhouses are designed for gardeners looking for a strong, dependable greenhouse that can handle demanding weather conditions throughout the year. Whether you are dealing with heavy snow, strong winds, cold temperatures, or unpredictable seasonal changes, our heavy duty greenhouses are engineered to help protect your plants and extend your growing season.

Our greenhouse kits are trusted by thousands of growers across North America who want a durable greenhouse solution for backyard gardening, homesteading, and commercial growing.

Heavy Duty Greenhouses for Year-Round Gardening

Are you searching for a heavy duty greenhouse that can stand up to harsh winter conditions and changing climates? Planta Greenhouses are built with galvanized steel frames and premium double-wall polycarbonate panels designed to provide exceptional durability, insulation, and protection for your plants.

Our heavy duty greenhouse kits are ideal for gardeners who want to grow vegetables, herbs, flowers, and tropical plants while extending their growing season beyond spring and summer.

With snow load capacities up to 98 psf and wind resistance up to 65 mph, Planta Greenhouses are designed to perform in some of the toughest growing environments.

4.8
Rated 4.8 out of 5 stars
Based on 122 reviews
Total 5 star reviews: 104 Total 4 star reviews: 12 Total 3 star reviews: 6 Total 2 star reviews: 0 Total 1 star reviews: 0
95%would recommend this product
Slide 1 selected
QualityRated 4.7 on a scale of 1 to 5
DurabilityRated 4.7 on a scale of 1 to 5
Wind and Snow ResistanceRated 4.5 on a scale of 1 to 5
InsulationRated 3.7 on a scale of 1 to 5
InstallationRated 3.6 on a scale of 1 to 5
Customer ServiceRated 4.7 on a scale of 1 to 5
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122 reviews
  • JL Profile picture for Jim L.
    Jim L.
    Verified Buyer
    I recommend this product
    Location Washington
    Rated 5 out of 5 stars
    1 month ago
    Well designed for DIY

    Going on the 4th season. It has held up well to our harsh winters and windy conditions in Eastern Wasington State. Assembly is not difficult. The YouTube videos are very helpful. I was able to run power and water to the selected site. The stamped holes lined up perfectly for screws. LOTS OF SCREWS/BOLTS! I had a few things I had to redo because I initially put together incorrectly. Once you get the process down using the videos for step by step "how to" it goes well. A quality product worth the time invested to complete. Once the site is prepped the way desired, 2 fairly handy people can get this put together and ready to use in 3 days. A kid or 2 for "go fer" etc. is helpful.

    PG Profile picture for Planta Greenhouses
    Planta Greenhouses
    1 month ago

    Thank you so much, Jim! We're absolutely thrilled to hear that your Sungrow 20 has been holding up so beautifully through four seasons of harsh Eastern Washington winters and windy conditions - that durability is exactly what we strive for!

    Your experience perfectly captures what makes our greenhouses so special for DIY builders. We love that you found the YouTube videos helpful for getting through those step-by-step details. It sounds like you really got the hang of the process, and we're glad those stamped holes lined up perfectly for you. Don't worry about having to redo a few things initially - that's all part of the learning curve, and it's clear your attention to detail and persistence paid off in the end.

    Thank you for choosing Planta and for sharing such detailed feedback about your four-season journey with the Sungrow 20!

  • T
    Tracy
    Verified Reviewer
    I recommend this product
    Location North Carolina
    Rated 5 out of 5 stars
    2 months ago
    Love our Sungrow!

    Our Sungrow 20 went up a week ago with help from a Planta certified installer, and we’re super impressed with the quality of the greenhouse and with the installation. Still lots to do before planting, but we’re getting closer!

    PG Profile picture for Planta Greenhouses
    Planta Greenhouses
    2 months ago

    Thank you so much, Tracy! We're absolutely thrilled to hear that your Sungrow 20 went up so smoothly and that you're impressed with both the quality and the installation work. It's wonderful that you chose to work with one of our certified installers - they really know how to get everything set up just right!

    We highly recommend joining our Facebook Community if you haven't already. It is a wonderful platform for novices to experienced Planta Greenhouse owners to share information. We have over 5000 members who share their ideas, DIYs, pictures, etc.

    https://www.facebook.com/groups/plantagreenhousescommunity

    Thank you for choosing Planta and for sharing your positive experience with the installation process. Here's to all the wonderful growing adventures ahead in your new Sungrow 20!

  • B
    Blair
    Verified Buyer
    I recommend this product
    Location Montana
    Rated 5 out of 5 stars
    6 months ago
    Withstood 81 mph winds

    We live in Montana in a location that can get both a lot of snow and high winds. This last week we had the highest winds we’ve seen yet—40-50 mph sustained winds with 70-80 mph gusts. The greenhouse didn’t blow away and we had no blow outs on the panels. There are only a couple of minor issues to fix (some seal tubing came loose and the upper door got jammed to the inside of the lower door), but otherwise it looks good. When it was -40 last winter, it was so nice to step into the dormant greenhouse for sunshine where it was above zero and warm.

    We’ve been using the greenhouse for a couple of years now and it consistently gives us great veggies and herbs each season. The assembly was quite a process (be prepared with a team, plans, and don’t slapdash it), but it was well worth it.

    PG Profile picture for Planta Greenhouses
    Planta Greenhouses
    5 months ago

    Thank you so much, Blair! What an incredible testament to the Sungrow 20's durability - surviving 80 mph gusts is no small feat! We're thrilled to hear it held up so well through those extreme Montana conditions. It sounds like those minor issues with the seal tubing and door are easily fixable, and it's wonderful that the structure itself performed so beautifully.

    We're delighted to hear you've been getting great veggies and herbs consistently over the years - that's exactly what we hope for! And you're absolutely right about the assembly - it definitely requires proper planning and teamwork, but as you've experienced, the results are so worth the effort.

    Thank you for sharing this fantastic review and for sticking with your Sungrow 20 through all kinds of weather. Here's to many more successful growing seasons ahead!

    We highly recommend joining our Facebook Community, if you haven't already. It is a wonderful platform for novices to experienced Planta Greenhouse owners to share information. We have over 5000 members who share their ideas, DIY's, pictures etc.

    https://www.facebook.com/groups/plantagreenhousescommunity

  • DF
    Donna F.
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    8 months ago
    Rating

    Well built and easy to install but we’re short a few acres. Received them right away. Great customer service. Thanks.

    PG Profile picture for Planta Greenhouses
    Planta Greenhouses
    8 months ago

    Thank you, Donna! We're so glad to hear your Sungrow 20 is well-built and was easy to install - that's exactly what we aim for with our greenhouse designs. We appreciate your kind words about our customer service team as well. It sounds like you're ready to expand your growing operation even further! Here's to making the most of your greenhouse space and many successful harvests ahead.

  • CL
    Clay L.
    Verified Buyer
    I recommend this product
    Location New Hampshire
    Rated 5 out of 5 stars
    8 months ago
    Went together flawlessly

    i just finished putting my Sungrow 20 together. It took about 40 hours over about 2 weeks and I was amazed how well everything fit. There are a ton of pieces and hundreds of screws. I kept expecting to have to force things to fit and that didn't happen once. The precision of the components was amazing. The instructions were clear and the numbered pieces with arrows right on them showing orientation was invaluable.

    In terms of value for what it cost, this purchase was better than any other recent picture.

    Very well done.

    Note: I just finished building it, so I cannot have an opinion on durability, wind and snow resistance or Insulation, but they won't let me submit this without clicking on a number, so I'll go with 3's on them. If they had a 'no clue' option, I'd click that. (i.e. ignore my votes on those 3 items)

    PG Profile picture for Planta Greenhouses
    Planta Greenhouses
    8 months ago

    Thank you, Clay, for sharing such a detailed and thoughtful review! We’re thrilled to hear that your Sungrow 20 assembly went smoothly and that the parts fit together perfectly. Our team puts a lot of care into ensuring precision manufacturing and clear instructions, so it’s wonderful to know that made a difference in your build experience.

    We completely understand your note about durability, wind, snow, and insulation ratings — and we appreciate your honesty in clarifying that. Once you’ve had some time to experience the greenhouse through a full season, we’d love to hear your impressions on its performance.

    Thank you again for choosing Planta and for taking the time to share your feedback. We hope your new Sungrow 20 brings you many productive growing seasons ahead!

Snow & Wind Resistant

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Snow load up to 98 psf

Withstands a snow load of as muсh as 98 psf (480 kg / m²) and is maintenance free in the winter

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Wind resistance of 65 mph

Sturdy greenhouse construction that resists winds up to 65 mph (100 km/h)

Planta Greenhouses are an excellent choice for year-round gardening. The innovative design makes our greenhouse kits durable, adaptable, and cost-effective for growers looking for a reliable heavy duty greenhouse solution.
  • Heavy Duty

    We use heavy duty 6mm Polycarbonate Panels on all models

  • Quality Engineering

    Our greenhouse frames are engineered to be durable and functional

  • Length Extension

    Greenhouses can be extended up to 100 feet in length.

  • UV Protection

    Planta Greenhouse Panels provide 100% protection against UV rays

  • Maintenance-free

    Our heavy duty galvanized steel frames are durable and rust-resistant

  • Top-Rated Support

    Customer service from a top-rated team that supported over 12,000 greenhouse growers!