Sigma Urban

Sigma Urban

Approx Size: 10' × 13' × 7'

Transform your backyard into a vibrant garden that continues to flourish in the face of sizzling summers and frosty winters. A space where you can explore your green thumb by experimenting with a variety of zesty fruits and spicy peppers throughout the seasons. A tranquil retreat where you can spend time marveling at how your plants grow.

Features

Strong and spacious: long-lasting construction, weather-resistant materials, and roomy design.

  • Wind resistant up to 65 mph for those living in gusty climates.
  • Comes with two doors (one at each end).
  • Withstands a snow load of up to 3 feet (32 psf)
  • Made with a heavy-duty galvanized pipe frame and 6 mm double-wall polycarbonate panels.
  • Arched shape - so 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 you have more time to focus on your garden. 
  • We offer a 5-year warranty because our greenhouse is heavy-duty and long-lasting.
  • Access to our private Facebook group to connect with and learn from other greenhouse owners.
Backorder now - will be available January 2024.
Regular price $2,300 USD
Regular price $2,500 USD Save $200 Sale Sale price $2,300 USD
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Have questions? Call us 1-877-669-1286
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About Sigma Urban

The Planta Sigma Urban was created for spirited gardeners working with compact urban and suburban spaces. This greenhouse is ideal for 3 or 4 season gardening, so you can harvest homegrown fruits and vegetables throughout the year. Our Sigma collection focuses on sturdy construction and spacious design, bringing heavy-duty greenhouse engineering right to your backyard.


 

Exact size: 118.1 x 83.9 x 158.29 inches

The tough galvanized pipe frame is rust-resistant and built to last. It's strong enough to handle moderate to severe weather conditions, keeping your garden protected throughout the seasons.

The greenhouse comes with:

  • two doors
  • two manual windows
  • the option to install multiple windows.

This greenhouse is particularly comfortable to work in throughout the day due to the end-to-end ventilation and the unique 7ft roof height.

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Snow Load Up To 32 psf (160 kg / m²)
32 psf (160 kg / m²) is equal to 3 feet fresh snow layer or 1.5 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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Reviews

4.9
Rated 4.9 out of 5 stars
Based on 18 reviews
Total 5 star reviews: 16 Total 4 star reviews: 2 Total 3 star reviews: 0 Total 2 star reviews: 0 Total 1 star reviews: 0
100%would recommend this product
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QualityRated 5.0 on a scale of 1 to 5
DurabilityRated 4.6 on a scale of 1 to 5
Wind and Snow ResistanceRated 4.6 on a scale of 1 to 5
InsulationRated 4.6 on a scale of 1 to 5
InstallationRated 3.7 on a scale of 1 to 5
Customer ServiceRated 5.0 on a scale of 1 to 5
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18 reviews
  • JH
    James H.
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    5 months ago
    sigma urban

    it's well engineered and well packed. Lots of bits to put together. If I had a swear box it would have paid for it. As has been said before... instructions arnt the best but help line was great. I used 6 by 6's for the base. Be sure to get the base square. Everything well packaged. Only thing I really had problems with was installing door and window hinges. Some screws could have been a little longer but all in all the greenhouse is great. Hopefully it gets through winter and next year we will be better organized for growing in Nova Scotia..

    PG Profile picture for Planta Greenhouses
    Planta Greenhouses
    5 months ago

    Thanks for your feedback, James!

    We're glad you found it well-engineered and packed. Your pictures are great!

    If you need any assistance in the future, feel free to contact us. Happy growing in Nova Scotia!

  • DB
    Diane B.
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    5 months ago
    serre urbaine

    Nous l'aimons beaucoup. Le plan d'installation est très utile car il y a beaucoup de pièces. J'aime travailler dans ma serre ,on s'y sens bien.

    PG Profile picture for Planta Greenhouses
    Planta Greenhouses
    5 months ago

    Nous sommes ravis que vous aimiez votre serre!

    Si vous avez besoin d'aide supplémentaire, n'hésitez pas à nous contacter. Bon jardinage :)

  • SK
    Steven K.
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    5 months ago
    Glad I bought it

    Perfect size for backyard gardener, lots of interior space and well constructed. Very satisfied with my purchase.

  • TG
    Tess G.
    Flag of Canada
    Verified Buyer
    I recommend this product
    Location Ontario
    Rated 5 out of 5 stars
    1 year ago
    The growing season was significantly extended

    We grow greens and medicinal herbs in our greenhouse, and the growing season was significantly extended and more forgiving of a late start. It is a sleek and simple design. Our buying experience from Planta was great. The assembly process was miserable, but once built, it was a joy to use.

  • MB
    Michaelle B.
    Flag of Canada
    Verified Buyer
    I recommend this product
    Location Ontario
    Rated 5 out of 5 stars
    1 year ago
    Every time I look out into my garden, this greenhouse still makes me smile

    I grow tomatoes, cucumbers, peppers, and hanging baskets of strawberries in my greenhouse. I was able to plant in April and had greens growing until Christmas. I just love the smell inside the greenhouse :-)

    Our experience buying from Planta was excellent! We recently bought an extension and there were some pieces missing. One phone call and they were on their way.

    This is our second winter, and we haven’t had much snow, but what we have had has not affected the greenhouse at all. I’m very happy with the product and I’m very happy with the service. We did have some problems putting it up, but that’s because we were brand new to this.

    Every time I look out into my garden, this greenhouse still makes me smile.

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Videos

Shipping

Sigma Urban ships in these boxes:

  L, (in) W, (in) H, (in) Weight, (lbs) Quantity
Sigma Base 1 62 11 3 46 1
Sigma Base 2 76 20 2 77 1
Sigma Polycarbonate Base 83 44 3 55 1
Sigma Polycarbonate Extension     83 44 2 20 1

 

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

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.

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.

What is the width of the door opening?

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

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.

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)

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 is the frame made of?

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

Roof Ventilation Windows

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.

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.

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).

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.

Sigma Greenhouses

What are the snow load and wind resistance on the Sigma models?

Sigma models can hold a snow load weight of 32 psf (160 kg / m2) or 3ft of fresh snow on top of the greenhouse. The wind resistance is 65 mp/h (100km/h).

Sigma Installation

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.

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 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?

Absolutely! 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?

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