Riga Greenhouses are designed and manufactured premium greenhouse kits to endure even the toughest of winter weather. Built with a durable anodized aluminum frame and 6-16mm twin wall polycarbonate panels with UV coating. Each kit is backed by a 15-year warranty on the frame and 10-year warranty on the panels. All included with free shipping and straightforward DIY assembly.
Let's explore the benefits of utilizing a greenhouse in the winter, what to look for in greenhouse winter durability, and how to choose the right greenhouse to weather the storms in your backyard.
A quality winter greenhouse extends your growing season well beyond the first frost, protects tender plants from freezing temperatures, heavy snow, and damaging winds, and creates a stable microclimate for year-round gardening success.
Riga Greenhouses are engineered to withstand winds up to 100mph and over a foot of snow. Outperforming cheap DIY kit competitors. The iconic "onion" shape of the Riga greenhouse prevents heavy snow buildup and allows the structure to stand tall without added reinforcements. With excellent insulation from twin polycarbonate panels your plants will thrive even in the coldest of temperatures. Riga greenhouses puts you in control of your plant's growth, not mother nature.
What to Look for in the Best Outdoor Greenhouse for Winter
Not all greenhouses are created equal when winter hits. Focusing on critical features when purchasing can mean life or death for your plants. Riga greenhouses include these key features that will ensure the success of your garden in the harshest months.
- Heavy-Duty Anodized Aluminum Frame — Rust-resistant and extremely strong, with a long warranty (15 years on Riga models).
- Thick Twin-Wall Polycarbonate Panels (6-16mm) — Superior insulation compared to single-wall or thinner options. The air gap within the panel layers traps heat from the sun and provides excellent warmth for plants.
- High Wind and Snow Load Rating — Look for kits engineered for real winter conditions. With heavy duty aluminum frames and thick polycarbonate panels, Riga models can withstand the weight of heavy snow and gale winds.
- Built-in Roof Vents – Essential for circulating airflow through all seasons. Preventing fungus, mold, and excess humidity that would damage delicate plants and seedlings. Riga Automatic Window Openers provide a hands-off solution for your greenhouse.
- Easy DIY Assembly with Excellent Support — Riga manuals provide clear instructions, and video guides demonstrate easy assembly, allowing you to get up your greenhouse before the first frost.
How to Choose the Right Size for Your Winter Greenhouse
The best outdoor greenhouse for winter is one that fits your space and gardening goals. Consider how many plants you want to protect and how much room you need to work comfortably inside during cold months. Riga offers a range of sizes so you can find the perfect fit — from compact models like the Riga II 7x7, ideal for smaller backyards to larger options such as the Riga IV 9x14 for serious winter gardeners.
Door Extension Kits for Growing Flexibility
Found your perfect greenhouse, but it's too short? Don't worry! Riga Greenhouse presents the Door Extension Kit. By placing your greenhouse on a pony wall (a small concrete or brick wall that the frame rests on), you can add up to 20" inches of height to your greenhouse! The extension kit simply adds an extra panel above the door that allows it to sit lower. Let's extend your greenhouse today!
