X-Tall Octagonal cedar Greenhouse from Alton brings a touch of modern elegance and horticultural practicality to your garden. Made from warm-hued Western Red Cedar with rot-resistant properties, this spacious high-eaves model features a tall design with cupola. With its two high-level side louvre vents and two automatic roof vents, which open and close with temperature changes, the greenhouse ensures excellent ventilation, drawing in cool air and expelling warm air.

Accessories

Comes Standard With

• 3mm safety glass with screw in cedar capping
• Hinged lockable double doors – wide opening
• Victorian style aluminum guttering with downspout
• Cupola with roof vents
• Automatic opening roof vents (2)
• Louvre windows (2)

Optional Accessory Kit:

• Octagonal shelf staging (2) sides
• Octagonal shelf staging infill (3rd side shelf shape)
• Upper shelf (mounts higher in greenhouse)

About Alton by Exaco

The Octagonal is built by Alton UK, a British cedar greenhouse maker in continuous production since 1921, imported exclusively to the U.S. by Exaco Trading — World of Greenhouses is an authorized Alton dealer. Every Alton greenhouse shares the same build quality: grade-1 Western Red Cedar (no knots) dipped to resist water absorption, a steep 45° roof pitch so snow slides off, tongue-and-groove assembly with solid aluminum gussets at every joint, an aluminum base profile that lifts the frame 1″ off the ground, aluminum bar capping over the glazing, 3mm tempered safety glass, pre-assembled doors and windows, and automatic enrollment in a 10-year warranty.