Backyard Discovery Bellerose XL 13x11 Greenhouse

This backyard discovery bellerose xl 13x11 greenhouse review covers the runner-up in our 2026 best greenhouses guide, where it earns the Best for serious year-round growing label. The Backyard Discovery Bellerose XL 13x11 is a cedar wood walk-in greenhouse kit priced at $5,799 and rated 4.6 stars from 78 Amazon ratings. It measures 13 by 11 feet, stands 131 inches tall and lists at 649.99 kg, so it is a build-once structure rather than a seasonal pop-up. Pro-Tect testing rates the frame for up to 9,200 pounds of snow (30 inches) and winds up to 100 mph when anchored as the manual specifies. That rating is why it suits growers who garden through winter in cold, snowy states.

The four-wall polycarbonate roof and window panels are the headline feature, because they improve heat retention by 30% compared with standard double-wall polycarbonate. As a result, seedlings and cold-hardy greens hold steadier overnight temperatures. Ventilation works in two ways: a temperature-activated exhaust fan pulls hot air out automatically, and two easy-open windows add natural circulation and let pollinators in. On top of that, the kit ships with sliding doors, hose hook-ups, a PowerPort and staging shelves, so water, power and potting space are built in. Cedar framing brings natural decay resistance, and the pergola roof shades part of the footprint. In practice, plan for a multi-day build, because cedar panels and a pergola roof take time to square, level and anchor.

Value depends on how long you plan to grow. At $5,799, the Bellerose XL is a serious investment, and what you get for it is a complete package: four-wall insulated glazing, forced ventilation, cedar framing and a 5-year warranty. Meanwhile, the smaller and cheaper greenhouses in this guide suit tighter yards and lighter snow loads, which is exactly where they belong. That said, this is not the pick for renters or small city yards, because the 13 by 11 footprint needs a large, flat, sunlit pad. Even so, if you grow year-round and want one structure to build once, the Bellerose XL earns its keep.