Sungrow 20

Sungrow 20

Approx Size: 10' × 20' × 8'

Picture the tree fort from your childhood hidden in your own backyard. A vibrant garden filled with lush greenery and new life. A cocoon where plants soar indoors regardless of the weather outdoors.

Explore your creative side with a Planta Sungrow Greenhouse.

Features

One of the strongest greenhouses in the world: heavy-duty materials, more weather-resistant, and with a decade-long warranty.

  • New door window handles and metal trims.
  • Comes with two doors (one at each end).
  • Wind resistant up to 65 mph for those living in gusty climates.
  • Withstands a snow load (light snow) of up to 6 feet (75 psf), and 3 feet of packed snow making it perfect for areas with harsh winters.
  • Made with a heavy-duty galvanized steel frame and 6 mm double-wall polycarbonate panels.
  • Bell-shaped design - the wind, snow, and hail just slide off the sides.
  • Extendable beyond 100ft - so you can expand your greenhouse when you're ready.
  • Maintenance-free means more time to focus on your garden.
  • 10-year warranty because our greenhouse is undeniably durable.
  • Access to our private Facebook group to connect with and learn from other greenhouse owners.
Regular price $3,200 USD
Regular price $3,800 USD Save $600 Sale Sale price $3,200 USD
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Have questions? Call us 1-877-669-1286
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About Sungrow 20

The Planta Sungrow 20 was designed with the backyard farmer in mind. The quality materials allow for 3 or 4 season gardening of beautiful flowers, delicious fruits, and vegetables in most areas. Not to mention, the attractive and sleek design adds a stunning element to your backyard.

 

 

Exact size: 118.1 x 94.5 x 238.56 inches

The reliable rust-resistant steel frame is strong enough to withstand the most extreme climates, regardless of where you may live. So feel confident knowing that your garden will continue to thrive in a safe and solid environment that will stay standing for years to come.


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Snow Load Up To 75 psf (360 kg / m²)
75 psf (360 kg / m²) is equal to 6 feet fresh snow layer or 3 feet packed snow layer and is maintenance free in the winter More About PSF
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Wind Resistant up to 65 mph (100 km/h)
Sturdy greenhouse construction that resists winds up to 65 mph (100 km/h)
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Extendable & Customizable
This greenhouse can be extended with additional expansion kits
 
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4.9
Rated 4.9 out of 5 stars
Based on 93 reviews
Total 5 star reviews: 84 Total 4 star reviews: 5 Total 3 star reviews: 4 Total 2 star reviews: 0 Total 1 star reviews: 0
96%would recommend this product
Slide 1 selected
QualityRated 4.8 on a scale of 1 to 5
DurabilityRated 4.8 on a scale of 1 to 5
Wind and Snow ResistanceRated 4.5 on a scale of 1 to 5
InsulationRated 3.8 on a scale of 1 to 5
InstallationRated 3.4 on a scale of 1 to 5
Customer ServiceRated 4.7 on a scale of 1 to 5
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93 reviews
  • RC Profile picture for Rob C.
    Rob C.
    Verified Reviewer
    I recommend this product
    Rated 5 out of 5 stars
    4 weeks ago
    Finally done!

    Awesome kit. No complaints. As someone who worked in the sheet metal world, I was impressed with the tolerances held especially the hole to hole alignment. The only tricky part was the end seals.

    PG Profile picture for Planta Greenhouses
    Planta Greenhouses
    3 weeks ago

    Thank you for the fantastic review! We're glad to hear you are happy with the kit. Your photos look amazing, too! We appreciate your feedback regarding the end seals and are here to help if you have any other questions.

  • DT
    D. T.
    Verified Reviewer
    I recommend this product
    Location Missouri
    Rated 4 out of 5 stars
    1 month ago
    Sungrow 20

    The greenhouse and instructions overall were very good. Holes lined up very well and turned out good. I poured a concrete pad for the floor hoping this will help in energy storage for cold days. I also used a double 2 x 6 treated plate that bolted to the concrete and therefore raised the house 3 more inches. The bolt packs were short on the long bolts for the poly so I had to make a quick trip to the hardware store. That is the one thing I wish would improve, the bolts and nuts are a lesser quality than the structure. The metal is soft and were partially rusted right out of the boxes. The softer metal allows for a very easy cross thread especially if you gently try to use a cordless impact or drill to run a bolt through the layers.

    PG Profile picture for Planta Greenhouses
    Planta Greenhouses
    1 month ago

    Thank you for your feedback! We’re glad the greenhouse and instructions worked well for you. We appreciate your input on the hardware and will work on improving it. Happy gardening!

  • JM
    Janos M.
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    4 months ago
    window on top of the door

    It is a good product. I have one observation for the windows on top of the doors: I designed a net for the opening so the unwanted bugs and animals cannot access the opening.

  • CS
    Chris S.
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    4 months ago
    High Quality

    Very good quality. A little time consuming to put together but very happy with the finished product.

    The one thing that would be an improvement is a screen door and window option. I plan on making my own.

    PG Profile picture for Planta Greenhouses
    Planta Greenhouses
    4 months ago

    Thank you for your review, Chris! We're glad you're happy with the finished product. While assembly can be a bit time-consuming, the satisfaction of completing the project and admiring the finished product is truly rewarding. Looks great, enjoy your new setup!

  • JW
    Jack W.
    Verified Reviewer
    I recommend this product
    Rated 5 out of 5 stars
    4 months ago
    We like it

    We bought this Sungrow 20 in winter of 2022/23. My wife and I assembled and erected it together in about a total of about 56 hours. We pre-assembled the components in my shop, then, in January of 2023, we took the parts out and put it all together.

    The greenhouse came well packaged with a comprehensive booklet that included a parts manual and assembly instructions. Using that booklet and the assembly videos together are essential for an easy assembly. If you refer to them both, and often, it is really pretty easy to set it up. Make sure that your base is level and square, a good start makes it a breeze to erect.

    There are several rolls of clear tape to seal the polycarbonate ends. Do yourself a favour and buy a few tubes of clear caulking to use instead of the tape. Tape degrades. You could use the caulking as an adhesive to better attach some of the rubber sealing strips, especially around skylights. I would also suggest that the gaps between the polycarbonate and the hold down bands be caulked for better leak proofing. There are some leaks when there's heavy rain, but, for us, it really does not matter, and the plants don't mind a little extra moisture.

    It gets pretty hot in there during high summer, even with the doors, windows, and roof vents open. We put a 12 volt automotive cooling fan in one doorway and powered it directly with a 100Watt solar panel. The brighter the sunshine, the faster the fan runs. If a slower fan speed is wanted, a bit of rag over a corner…

    PG Profile picture for Planta Greenhouses
    Planta Greenhouses
    4 months ago

    Hi Jack!

    Thank you for your detailed review! We're thrilled that you and your wife are enjoying the Sungrow 20. It's great to hear that the greenhouse has held up well in various weather conditions.
    Happy gardening!🌱🌿🌻🌼

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Shipping

Sungrow 20 ships in these boxes:

  L, (in) W, (in) H, (in) Weight,(lbs) Quantity
Planta Base 1 63 12 3 49 1
Planta Base 2 51 16 3 75 1
Planta Base 3 41 6 3 33 1
Planta Polycarbonate base 82 44 4 40 1
Planta Extension 63 12 3 74 2
Planta Polycarbonate Extension 82 44 2 31 2
      Total weight: 425  

Planta Greenhouses is dedicated to deliver your order promptly, so you can begin using your greenhouse products right away.

Because greenhouses are packaged in large boxes, they have unique shipping requirements, including: 

  • We will contact you to confirm shipping price, based on your location and order size.
  • Shipping on most orders is between $250 and $450. Deliveries to remote areas may cost extra.
  • When you place your order, please make sure to enter the correct Phone and Address at checkout. You will be contacted by phone before the item is shipped. We cannot be responsible for deliveries to incorrect addresses.
  • As part of the delivery process, we require a contactable telephone number (for the courier company to contact you) before the item is shipped.
  • We will make every effort to ship your order in the fastest possible manner, and by the mode of transportation that you specify; however, in the event of no specific instructions, we will use our judgment and ship the best, fastest and most economical way. We are not responsible for delayed delivery due to conditions beyond our control.
  • We do not ship to PO Boxes, as in most cases you will need to sign for your item. 
  • White glove delivery service isn't available. The greenhouse components are delivered in multiple boxes, the largest of which weighs 80lbs. The greenhouse will be delivered to your driveway. Please make arrangements to have the package moved to its installation location. 
  • Orders placed on weekends and public holidays will be processed the next business day.

FAQs

Residential Greenhouses

Are there doors on both ends of the greenhouse?

Yes! All of our Sungrow models come with manual doors and a manual window above the door on both ends of the greenhouse.

Do you have lean-to greenhouses?

Unfortunately, we do not have any lean-to greenhouses available at this time.

Do you make custom size greenhouses?

All of our products come pre-packaged by the manufacturer and can only be customized in length (6.5' extension). However, the height of the greenhouse can also be increased if placed on a base (up to 5ft above the ground)

How is the greenhouse anchored to the ground?

Every greenhouse kit comes with optional legs that can be dug directly into the ground. The amount of legs included depends on the greenhouse size.

What is the frame made of?

The greenhouse frame is made out of heavy-duty galvanized steel.

What polycarbonate panels are used for residential greenhouses?

We use 6mm heavy-duty, double-walled polycarbonate panels with a UV-protected outside layer for our Residential Greenhouses.

What type of base/foundation is the best for me?

There are several different types of greenhouse bases, information, and pictures posted by our customers on our Customer Stories page and our Planta Facebook page. Additionally, you can learn more about "Types of Greenhouse Bases - With Pros & Cons of Each" on our blog.

Roof Ventilation Windows

Can I add windows for my greenhouse later?

Roof ventilation windows work as an add-on and can be installed only once the greenhouse installation is complete. Windows can be added later as well.

How do the Automatic Ventilation Windows work?

Our Automatic Ventilation Windows do not require any batteries or electricity. A heat-activated mechanism will open/close the window once a certain temperature is reached.

How many roof ventilation windows are recommended for the greenhouse?

It is strongly recommended to go with an even amount of roof ventilation windows. This is so you can place at least one on either side of the greenhouse. The amount of windows required depends on the greenhouse size, the climate you are in, and the types of plants that will be grown inside the greenhouse.

What are the opening and maximum opening temperatures for the Automatic Windows?

The opening temperature is between 17 °C and 25°C (62.6°F to 77°F), while the maximum opening is at 30 °C (86°F).

Sungrow Greenhouses

What is the snow load on the Sungrow models?

The Sungrow models can hold snow load weight of up to 6ft of fresh snow (75 psf or 360 kg / m2) on top of the greenhouse.

What is the width of the door opening?

For our Sungrow models, the door opening width is 800mm or 31.5".

What is the wind resistance on the Sungrow models?

The wind resistance is 100km/h (65 mp/h).

Installation

Is there support after purchase?

Absolutely! Our after-sales customer service team is available to answer any questions and support you on your greenhouse journey. You can fill out our contact form or give us a call at 1 (877) 669-1286.

What resources are available to assist with greenhouse installation?

We offer several resources to help you with the installation process:

  1. Bilt App: Downloadable on the Apple Store and Google Play, it provides digitized step-by-step instructions.
  2. YouTube videos: A series of detailed video tutorials to guide you through the installation process.
  3. Printed Manual: Comes included with your greenhouse.
  4. Blog: Explore our blog for valuable insights such as "Expert Advice: 9 Tips For Installing Sungrow Greenhouses With Ease!"
  5. Customer-Only Facebook Group: Connect with other customers for valuable installation tips.

If you still need assistance, our customer service is ready to help via phone or email.

What type of base/foundation is the best for me?

This can vary depending on your location, gardening plans, and desired aesthetic. To better understand the different options available, you can find several different types of greenhouse bases, information, and pictures posted by Planta Greenhouse owners on our Customer Stories page and our Planta Facebook page. Additionally, you can learn more about it on our Greenhouse Bases blog.

Customization Options

Can I add my own vents, fans, heaters, and lights?

Of course! The polycarbonate is very easy to work with, and the galvanized steel frame is strong enough to support any additional accessories.

Can I get a longer greenhouse?

Most of our residential and commercial greenhouses are extendable up to 100ft. Learn more about our extension kits for both the Sungrow and Sigma models.

How can I customize my greenhouse?

The customization possibilities are truly endless with a Planta Greenhouse. To help you get started, take a look through “16 Ways to Supercharge Your Greenhouse” on our blog. 

Is hanging plants, heaters, and hammocks safe from my greenhouse frame? How much weight does it handle without affecting the guarantee?

It is safe to hang plants and accessories on a Sungrow greenhouse since each internal reinforcement arch can withstand up to 100 lbs/45.3 Kg. On the Sigma series, you can pre-drill the holes on the framing and hang small things. We would not suggest hanging anything heavier than 5 – 10 lbs / 2.2 – 4.5 Kg per arch.

May I heat my greenhouse with fire pits or similar?

You can use any heating source inside, like electricity, gas, propane, and even wood. It may be tricky to heat with wood, as you want to ensure that you keep the stove/pit away from the panels to prevent them from melting or burning if they are too close to the fire source. In this case, the customers ideally would want to come up with an exhaust system, making sure it’s not in contact with the panels, for being a flammable material.