The Riga Greenhouse is designed to grow fresh vegetables, herbs, and flowers year round . Other greenhouses use less than 6 mm panels, but the Riga Greenhouses use 8 mm and 10 mm panels on the smaller models and the Riga XL Greenhouse has 16 mm triple-wall polycarbonate panels. The Riga XL Greenhouse is the largest commercial quality hobby-kit type greenhouse now available in the country designed, engineered, and manufactured in Germany by Hoklartherm, with 28 years experience. The polycarbonate glazing on the Riga XL Greenhouse is believed to be of superior quality than the much more common Polygal or GE glazing. One major advantage of the Riga XL Greenhouse’s construction method is that the frame profiles are permanently attached to each other, and won’t come loose over time due to wind pressures. With a combination of strong materials and durable hardware it is by far the strongest greenhouse of its size in the industry and for the cost, this is a huge value.