Sungrow 20

Sungrow 20

4.8
Rated 4.8 out of 5 stars
115 Reviews

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 closed Facebook group to connect with and learn from other greenhouse owners.
Regular price $4,050 CAD
Regular price $4,450 CAD Save $400 Sale Sale price $4,050 CAD
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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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Extendable & Customizable
This greenhouse can be extended with additional expansion kits
 
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4.8
Rated 4.8 out of 5 stars
Based on 115 reviews
Total 5 star reviews: 98 Total 4 star reviews: 11 Total 3 star reviews: 6 Total 2 star reviews: 0 Total 1 star reviews: 0
95%would recommend this product
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115 reviews
  • JS
    Julie S.
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    4 days ago
    I Absolutely LOVE Gardening in My Greenhouse

    The experience has been excellent from the very beginning. From tomatoes and cucumbers to peas, we’ve been able to grow an incredible amount thanks to the optimal conditions inside the greenhouse. The growth is rapid, the harvests are generous, and the growing season is significantly extended.

    The purchase process was easy, and the staff at Planta were incredibly helpful. They answered all of our questions before we made the purchase and continued to be responsive and supportive during the assembly phase.

    We added raised beds to make planting and maintenance easier, and one of our best decisions was including the automatic roof vents. They open and close on their own and do a fantastic job regulating the temperature inside.

    I truly love everything about my Planta Greenhouse. Living at a higher elevation with plenty of snow and wind, durability was a top priority—and this structure delivers. It’s so well-made and performs exactly as advertised. I highly recommend Planta to anyone considering a greenhouse. Most days, you’ll find me happily gardening inside—my new favorite place to be.

  • RG
    RYSZARD G.
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    1 week ago
    Tomatoes, Carrots, Cucumbers

    This is my first greenhouse.

    In 2023, I installed the greenhouse. Inside, I grow tomatoes, carrots, and cucumber.

    Super greenhouse.

    My experience buying from Planta Greenhouses was great, no problem, very fast shipping.

  • DH
    Dawn H.
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    1 week ago
    A Zone 3 Gardener’s Dream

    It’s completely transformed our gardening experience. Inside, we grow tomatoes, peppers, ground cherries, and cucumbers. It’s been a whole new world for us—starting seeds, extending harvests, and seeing real results even into November. Normally, our growing season would be done by the first week of September, but not anymore.

    Buying from Planta Greenhouses was amazing. The delivery was fast, and any time I needed help, they were there to support me. While I’m not doing anything fancy inside, I’ve added side shelves to help with starting seeds.

    I love everything about this greenhouse. Living in Zone 3, I had never been able to grow cucumbers successfully, and I was always disappointed with my tomatoes. This year was different—I harvested so many huge tomatoes that I actually pressure canned them. I had more cucumbers and peppers than ever before, and I was amazed to see my ground cherry bush grow over four feet tall and produce an endless amount of fruit.

    One of the best surprises has been how much I enjoy simply being in the greenhouse. When it’s -20°C outside, it’s +29°C inside. I’ve spent time in there lounging with a book and coffee, soaking up the warmth and getting a suntan in the middle of winter. Absolutely amazing. Every part of this experience has been my favorite!

  • CB
    Christine B.
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    2 weeks ago
    Built to Withstand 50 mph Winds, Hail & 5 Feet of Snow

    I installed my Sungrow 20 greenhouse in 2024, and although it’s not my first greenhouse, it’s been quite the journey. After my husband passed away, I had trouble finding help to put it together. The instructions felt overwhelming, and I wish there was a setup crew or at least a simplified version—maybe a "for dummies" guide. Eventually, I found someone to help me assemble it, and we finished just before the snow hit.

    Right now, the greenhouse holds a few hanging baskets, sweet potatoes, potatoes, and tomato starts, along with other seedlings I prepped for the planting season. Unfortunately, I haven’t been able to get inside recently because the snow just keeps coming. Still, I managed to water everything before the first snowfall and I’m hopeful some of it survived our brutal -26°F temperatures and 5 feet of snow.

    Despite the weather, the greenhouse has already proven to be incredibly sturdy, standing up to 50 mph winds and hail without issue. I've also added raised beds, which I plan to fill with carrots, beets, and other veggies as soon as the weather improves. I'm especially looking forward to finally growing crops without worrying about deer, elk, or antelope eating them.

    Buying from Planta was simple and the customer service was excellent. I didn’t manage to install the extra window because we couldn’t figure it out, but overall, I’m impressed with the structure. I can't wait to see what survived the snow and start growing again when spring finally arrives.

  • VS
    Valerie S.
    Verified Buyer
    I recommend this product
    Rated 4 out of 5 stars
    2 weeks ago
    Our cucumbers and tomatoes went crazy!

    It’s been a game changer for our gardening experience since 2023. Living in an area with a very short growing season, having a greenhouse has allowed us to grow more—and longer. This year, our cucumbers and tomatoes went absolutely crazy! We've also been growing lettuce, cabbage, herbs, and strawberries with great success.

    We purchased the greenhouse online without needing customer service, and the process was smooth. My husband built custom raised beds inside and added a potting table, irrigation system, and drip line, which has made maintenance much easier. It’s been amazing to grow food that’s protected from deer and high winds—and with added shade, we can also shield our crops from extreme heat.

    One note: due to our high winds, the side gasket did blow off, and we’ve noticed the metal straps shift with temperature changes, occasionally creating gaps. Still, we’re very happy with our setup and how much more we can grow now!

Shipping

Sungrow 20 Greenhouse boxes

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 58 1
Planta Extension 63 12 3 74 2
Planta Polycarbonate Extension 82 44 2 31 2
Total weight: 425

Greenhouses are amazing products, and they require special shipping and handling. That is the reason, we have been working diligently over the past year to secure preferential shipping rates for our customers. Most shipments across Canada and the US are between $250 and $450. 

  • We will contact you to confirm shipping price, based on your location and order size.
  • Shipping on most residential greenhouse orders is between $250 and $450, customers in remote areas may need to pay 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.
  • 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. 
  • We do not ship to PO Boxes, as in most cases you will need to sign for your item.  
  • Orders placed on weekends or public holidays will not begin processing until the next business day. 

 

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