Sigma Greenhouses

Sigma Greenhouse is a heavy duty, arch shaped, garden greenhouse designed for backyard gardening. The Sigma can support up to 1 meter of snow, withstand 100 km/h winds and comes with a 5-year warranty. Enjoyed by thousands of happy growers around the world.

Sigma Gen III New

Sigma Gen III (3m wide) - the new version of the Sigma Greenhouse, offering a fixed 3m width and expandable length for larger or evolving growing setups.

  • Large transparent Sigma 300 (Gen III) greenhouse with metal frame in a warehouse setting
    Up To 160 kg / m²Snow Load

    Sigma 3x4

    Size: 3 m × 4 m × 2.1 m

    Sigma 3x4

    Size: 3 m × 4 m × 2.1 m
    €1.200 EUR
    €1.368 EUR Save €168 Sale €1.200 EUR
  • Clear polycarbonate Sigma 300 (Gen III) greenhouse with metal frame on a dark background
    Up To 160 kg / m²Snow Load

    Sigma 3x6

    Size: 3 m × 6 m × 2.1 m

    Sigma 3x6

    Size: 3 m × 6 m × 2.1 m
    €1.775 EUR
    €1.943 EUR Save €168 Sale €1.775 EUR
  • Polycarbonate Sigma 300 (Gen III) greenhouse in a garden with flowers and a clear sky
    Up To 160 kg / m²Snow Load

    Sigma 3x8

    Size: 3 m × 8 m × 2.1 m

    Sigma 3x8

    Size: 3 m × 8 m × 2.1 m
    €2.183 EUR
    €2.423 EUR Save €240 Sale €2.183 EUR
  • Transparent Sigma 300 (Gen III) greenhouse structure with open doors in a dark indoor setting
    Up To 160 kg / m²Snow Load

    Sigma 3x10

    Size: 3 m × 10 m × 2.1 m

    Sigma 3x10

    Size: 3 m × 10 m × 2.1 m
    €2.591 EUR
    €2.903 EUR Save €312 Sale €2.591 EUR

The original best-selling Sigma Greenhouses (Gen II) with thousands of happy gardeners.

  • A large clear Sigma 2x4 (Gen III) greenhouse with a metal frame, set up on a grassy area with trees in the background.
    Up To 160 kg / m²Snow Load

    Sigma Urban (Gen II)

    Size: 3 m × 4 m × 2.1 m

    Sigma Urban (Gen II)

    Size: 3 m × 4 m × 2.1 m
    4.9
    Rated 4.9 out of 5 stars
    23 Reviews
    €1.008 EUR
    €1.200 EUR Save €192 Sale €1.008 EUR
  • Sigma 6 (Gen II)
    Up To 160 kg / m²Snow Load

    Sigma 6 (Gen II)

    Size: 3 m × 6 m × 2.1 m

    Sigma 6 (Gen II)

    Size: 3 m × 6 m × 2.1 m
    4.6
    Rated 4.6 out of 5 stars
    34 Reviews
    €1.583 EUR
    €1.775 EUR Save €192 Sale €1.583 EUR
  • Sigma 8 (Gen II)
    Up To 160 kg / m²Snow Load

    Sigma 8 (Gen II)

    Size: 3 m × 8 m × 2.1 m

    Sigma 8 (Gen II)

    Size: 3 m × 8 m × 2.1 m
    4.9
    Rated 4.9 out of 5 stars
    17 Reviews
    €1.991 EUR
    €2.183 EUR Save €192 Sale €1.991 EUR
  • A large, Sigma 2x10 (Gen III) greenhouse with a rust-resistant galvanized pipe frame, situated outdoors with a house in the background.
    Up To 160 kg / m²Snow Load

    Sigma 10 (Gen II)

    Size: 3 m × 10 m × 2.1 m

    Sigma 10 (Gen II)

    Size: 3 m × 10 m × 2.1 m
    4.6
    Rated 4.6 out of 5 stars
    10 Reviews
    €2.399 EUR
    €2.591 EUR Save €192 Sale €2.399 EUR

Sigma 250 New

Sigma 250 (2.5m wide) – The new version of the Sigma Greenhouse, built with a fixed 2.5m width and modular length extensions for added growing space over time.

  • Sigma 250 (Gen III) greenhouse with transparent panels in a warehouse setting
    Up To 160 kg / m²Snow Load

    Sigma 2.5x4

    Size: 2.5 m × 4 m × 2.26 m

    Sigma 2.5x4

    Size: 2.5 m × 4 m × 2.26 m
    €1.368 EUR
    €1.464 EUR Save €96 Sale €1.368 EUR
  • Sigma 2.5x6
    Up To 160 kg / m²Snow Load

    Sigma 2.5x6

    Size: 2.5 m × 6 m × 2.26 m

    Sigma 2.5x6

    Size: 2.5 m × 6 m × 2.26 m
    €1.775 EUR
    €1.943 EUR Save €168 Sale €1.775 EUR
  • Sigma 250 (Gen III) greenhouse in a garden setting with trees and flowers
    Up To 160 kg / m²Snow Load

    Sigma 2.5x8

    Size: 2.5 m × 8 m × 2.26 m

    Sigma 2.5x8

    Size: 2.5 m × 8 m × 2.26 m
    €2.183 EUR
    €2.423 EUR Save €240 Sale €2.183 EUR
  • Clear polycarbonate Sigma 250 (Gen III) greenhouse in a garden with flowers and plants around
    Up To 160 kg / m²Snow Load

    Sigma 2.5x10

    Size: 2.5 m × 10 m × 2.26 m

    Sigma 2.5x10

    Size: 2.5 m × 10 m × 2.26 m
    €2.591 EUR
    €2.903 EUR Save €312 Sale €2.591 EUR

Sigma 200 New

Sigma 200 (2m wide) – The new version of the Sigma Greenhouse, featuring a fixed 2m width with extendable length to grow with your needs.

  • Arch-shaped Sigma 2x4 (Gen III) greenhouse in a garden with flowers and a stone path by Planta Greenhouses EU.
    Up To 160 kg / m²Snow Load

    Sigma 2x4

    Size: 2 m × 4 m × 2.4 m

    Sigma 2x4

    Size: 2 m × 4 m × 2.4 m
    €1.368 EUR
    €1.464 EUR Save €96 Sale €1.368 EUR
  • Sigma 200 (Gen III) greenhouse with transparent panels on a grassy area in front of a house.
    Up To 160 kg / m²Snow Load

    Sigma 2x6

    Size: 2 m × 6 m × 2.4 m

    Sigma 2x6

    Size: 2 m × 6 m × 2.4 m
    €1.775 EUR
    €1.943 EUR Save €168 Sale €1.775 EUR
  • Sigma 2x8 (Gen III) greenhouse with a curved glass roof and walls on a grassy area.
    Up To 160 kg / m²Snow Load

    Sigma 2x8

    Size: 2 m × 8 m × 2.4 m

    Sigma 2x8

    Size: 2 m × 8 m × 2.4 m
    €2.183 EUR
    €2.423 EUR Save €240 Sale €2.183 EUR
  • Modern Sigma 200 (Gen III) greenhouse with transparent walls and a curved roof in a garden setting - by Planta Greenhouses EU.
    Up To 160 kg / m²Snow Load

    Sigma 2x10

    Size: 2 m × 10 m × 2.4 m

    Sigma 2x10

    Size: 2 m × 10 m × 2.4 m
    €2.591 EUR
    €2.903 EUR Save €312 Sale €2.591 EUR

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