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Planta Greenhouses

Sigma 26 Greenhouse

Sigma 26 Greenhouse

Approx Size: 10' × 26' × 7'

$3,550.00 USD
$3,950.00 USD $3,550.00 USD
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Grow through the seasons with your own remarkable micro-climate. Enjoy an area where you can plant, snack, and stay cozy regardless of the weather outdoors. The Planta Sigma 26 was designed to elevate your gardening experience.

  • Features two split doors at either end.
  • Wind resistant up to 65 mph (100 km/h) and ideal for breezy areas.
  • Withstands snow loads up to 3 feet (32 psf), making it perfect for snowy climates.
  • Constructed with 6mm double-walled polycarbonate and a sturdy galvanized pipe frame.
  • Wind, snow, and hail easily slide off of the arched design.
  • Extendable and customizable so you can create a unique space for your needs.
  • Rust-resistant and maintenance-free for less worry year-round.
  • Reliable and long-lasting with a 5-year warranty.
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5.0
Rated 5.0 stars
Based on 4 reviews
Total 5 star reviews: 4 Total 4 star reviews: 0 Total 3 star reviews: 0 Total 2 star reviews: 0 Total 1 star reviews: 0
100%would recommend this product
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4 reviews
  • HF
    Hannah F.
    Verified Buyer
    I recommend this product
    Rated 5 stars
    2 months ago
    This is my secret hideaway

    This is my secret hideaway. It's so spacious and chic. I get to bring my music & a galss of wine out here and spend my evenings gardening. It's so nice to get a break from life and just be around nature for a little while. So happy with my purchase!

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  • GC
    Gemma C.
    Verified Buyer
    I recommend this product
    Rated 5 stars
    3 months ago
    They're really great at what they do

    I love the design. I was worried that it would stick out in my yard, but it actually looks really lovely. My neighbours keep wanting a tour and might even buy one of their own soon. The boys at Nova were so kind and knowledgable.

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  • JR
    Jack R.
    Verified Buyer
    I recommend this product
    Rated 5 stars
    3 months ago
    Great engineering

    Well, I wouldn't be surprised if our planting season goes year round now. These greenhouses are sealed tight and capture a lot of heat. Even on cold nights it still feels nice and toasty in there.

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  • MP
    Marshall P.
    Verified Buyer
    I recommend this product
    Rated 5 stars
    3 months ago
    This is definitely changing the way that we live

    This was originally supposed to just be a garden space, but we started spending so much time out here that now it's our sunroom too. We brought in some chairs and have our morning tea in the greenhouse every day while we enjoy being around the plants.

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  • 5-year Limited Warranty

  • Extendable up to 100ft

  • Windproof up to 65 mph (100 km/h)

  • 32 psf (160 kg/m²) snow load

The Planta Sigma 26 was created with an emphasis on both spaciousness and reliability. In addition, the creative engineering and heat-capturing materials can extend your growing time to 3 or 4 seasons a year, allowing gardeners to enjoy homegrown produce even into the winter.

With its rounded shape and sophisticated construction, our Sigma collection brings powerful greenhouse innovation to mid-size urban and suburban backyards.

Both rust-resistant and long-lasting, the galvanized pipe is the ideal choice for our durable greenhouse frames. It's built to resist a wide range of climate conditions, so you can rest assured that your garden will remain safe and protected no matter what weather comes your way.

The Sigma 26 greenhouse comes with:
• Two doors
• Two manual windows
• The option to install multiple windows

Finally, in addition to the end-to-end ventilation, this greenhouse is incredibly spacious, featuring a high 7ft roof, making it an enjoyable space to work in throughout the day.

About Planta Greenhouses

Planta Greenhouses has combined innovative engineering with practical design to develop some of the strongest and most versatile greenhouses available. 

The heavy-duty galvanized steel frames and durable polycarbonate panels mean Planta Greenhouses are capable of withstanding one of the highest wind and snow loads of any residential greenhouse kit on the market. 

Finally, with key features such as extendable length and customizable design, Planta Greenhouses are truly a one-of-a-kind solution for your backyard gardening needs.

FAQs

How much snow can the Sigma greenhouse hold?

On top of the greenhouse, the Planta Sigma models can support up to 3 feet of fresh snow (32 psf or 160 kg / m2).

What is the wind resistance on the Sigma greenhouse models?

The Planta Sigma Greenhouse can withstand wind speeds up to 65 mph (100kph).

Are there customization options for the Sigma greenhouse?

Planta Greenhouses Sigma model can be extended up to 100ft. Additionally, vents, fans, heaters, and lights can easily be incorporated post-purchase.

Is the greenhouse equipped with doors on both ends?

Absolutely! The Planta Sigma models feature 2 manual split doors on either end of the greenhouse.

What materials are used to construct the Sigma Greenhouse?

Planta Greenhouses has designed their Sigma Models with 6mm double-walled polycarbonate panels with a UV-protected exterior. The greenhouse frame is made out of strong, heavy-duty galvanized pipe.