Backyard Discovery Bellerose 11x7
Rated to 100 mph, but only when anchored as specified — and the anchoring hardware is included.
Last checked 2026-08-29
What you should know before buying
The manual states hardware for BOTH anchoring methods ships in the box: 'The hardware to mount your greenhouse permanently to a concrete surface is included. This is the recommended anchoring method.' and 'The hardware to mount your greenhouse into a ground surface, such as through gravel into the ground, is included.'
Both sets included. Hardware for mounting to a WOOD DECK is explicitly NOT included and must be bought separately, with the manual warning to confirm structural support under the deck first.
Manual: 'It is critically important that you start with square and level footings or concrete pad.' It explicitly warns AGAINST setting the greenhouse directly on soil or grass, which it says shortens lifespan.
Structure
| Width | 7 ft |
|---|---|
| Length | 11 ft |
| Floor area | 83 sq ft |
| Frame | cedar |
| Glazing | 4-wall polycarbonate |
| Panel thickness | 10 mm |
| Panel retention | not published |
Wind, snow and anchoring
| Wind rating | 100 mph |
|---|---|
| Rating depends on anchoring | Product must be anchored as specified in the Backyard Discovery instruction manual |
| Snow depth | 30 in |
| Anchoring included | Yes |
| What ships for anchoring | 10 x 3-inch concrete anchors (recommended method, needs a 5/16in masonry bit) AND 10 x ground stakes |
| Foundation required | square and level footings or a concrete pad; concrete pads or posts recommended |
Ventilation
| Roof vents | not published |
|---|---|
| Opening windows | 2 easy-open window(s), manual |
| Powered fan included | Yes |
Ownership
| Warranty | 5 years |
|---|
Where to buy
Advertised prices, checked daily. Shipping is extra unless the retailer states otherwise — on a greenhouse, freight can change which seller is actually cheapest.
Price alert
Climate notes
Our analysis of the published figures — not a manufacturer claim.
- Hot climates
- A factory-fitted temperature-activated exhaust fan plus 2 opening window(s) beats most kits, but 2 passive opening(s) is modest for 83 sq ft. Community reports show 110-120F inside even with fans, so shade cloth should be assumed for Gulf/Southwest summers.
- Cold climates
- 10mm 4-wall polycarbonate is at the insulating end of the kit market. The manufacturer claims 30% better heat retention than double-wall; that is a relative claim with no stated R-value.
- Exposed and windy sites
- The 100 mph rating is conditional on anchoring per the manual — and the manual DOES supply the hardware: 10 concrete anchors (recommended) or 10 ground stakes. Setting it on bare soil or grass is explicitly warned against. Of the kits compared, this is the best-documented anchoring story.
What we don't know
Anything marked not published means the manufacturer does not state it. That is a fact about the product, not a gap on our side.
Figures are the manufacturer's own, taken from its documentation. We have not tested this greenhouse, and reporting a rating is not endorsing it. Wind, snow, permitting and foundation requirements vary by site — confirm anything that matters with the manufacturer and your local building authority before buying. Prices are what the retailer advertised when we last checked and exclude shipping unless stated.