Expand Your Green Thumb Skills with the Four-Season Hoklartherm RIGA XL 6
Imagine having a magical garden where you can grow tomatoes, peppers, or even flowers in the middle of winter! The Riga XL 6 Greenhouse is like a super tent for plants that lets you do just that. It?s big, it?s sturdy, and it loves to battle the weather, whether it's gusty winds or snowy days.
Built with German precision, the Riga XL 6 has an onion-shaped top that prevents snow and leaves from piling up, reducing maintenance. Its triple-wall polycarbonate construction keeps warmth in effectively, saving on heating costs during cooler months.
Inside, there?s loads of space. It?s 14 feet wide and nearly 20 feet long, so you?ll have plenty of room to grow everything from herbs to small trees. And with the high ceiling, you won?t have to worry about bumping your head or cramping your plants' style.

Never Miss Planting Season Again with RIGA Greenhouses
- Sturdy Construction: Built with tough aluminum frames and 16mm triple-wall polycarbonate panels, ensuring durability and long-lasting protection against harsh weather.
- Year-Round Growing: Designed to keep plants warm and safe, allowing for continuous gardening throughout the year, even in winter.
- Spacious Interior: Offers ample space with dimensions of 14 feet wide, 19 feet 10 inches long, and a peak height of 9 feet 10 inches, perfect for a variety of plants.
- Smart Design: The unique onion shape prevents snow and debris buildup, reducing maintenance needs and enhancing wind resistance.
- Automatic Windows: Features temperature-controlled windows that open and close automatically, providing optimal ventilation for your plants.
- Convenient Access: Includes two large Dutch barn doors with locks, making it easy to enter and secure your greenhouse.
- Wind Resistant: Engineered to stay stable and secure even in strong winds, making it a reliable choice for windy areas.
- Reliable Warranty: Comes with a 10-year warranty on the panels and a 15-year warranty on the frame, offering peace of mind and protection for your investment.

Make Every Day a Gardening Day with Ultimate Climate Control
One of the coolest things about this greenhouse is its automated windows. They open or close by themselves based on the temperature inside, which helps keep the air fresh without you having to adjust anything manually.
Whether you're an experienced gardener or a beginner, the Riga XL 6 offers a reliable space for year-round plant growth. It?s a peaceful retreat where you can enjoy quiet time with your plants.
Ready to start your gardening journey? Order the Riga XL 6 Greenhouse today and bring your garden dreams to life!

Let Your Plants Breathe Easy and Flourish with A RIGA Greenhouse
Made in Germany | Built by Hoklartherm, a company with 28 years of experience in making greenhouses. This ensures you get a top-quality product. |
Strong and Durable | Known as the toughest greenhouse you can get for under $5,000. It uses strong materials and has secure frame profiles that won't loosen over time. |
Superior Ventilation | Has better windows and doors for ventilation compared to other greenhouses, which means better airflow for your plants. |
High-Quality Glazing | Uses high-quality polycarbonate glazing from Germany, which is better than common options like Polygal or GE glazing. |
Adaptable Shelving | Comes with an optional two-layer shelving system that has removable inserts for tall plants. Also includes a Seedtray/Bench shelf and a strong top shelf for various plant sizes. |
Secure Foundation | The optional 6-inch high foundation frame can be buried to anchor the greenhouse securely, so you don't have to worry about it moving. |

Experience the Comfort and Peace of Mind with a Secure and Sturdy Greenhouse
Attractive Design | Adds a stylish touch to high-end gardens. It looks good while also being functional. |
Top Quality | Comparable to well-known car brands like Volkswagen or Volvo, it stands out for its strength, durability, insulation, and extra features. |
Good Insulation | Provides the right amount of insulation to keep your plants growing all year round without high heating costs. |
Flexible Sizes | Available in five different sizes, so you can choose the one that fits your gardening needs. |
Easy Assembly | Comes with a DVD and written instructions to help you set it up easily. |
Proactive Sizing | It's recommended to buy one size larger than you think you'll need to allow for future growth and expansion. |

Download Manuals of Riga Greenhouse XL 6
Specifications of Riga XL 6 Greenhouse
Construction | Extremely heavy-duty construction for a strong and reliable greenhouse structure. |
Insulation | First-class insulation with an R or K-value of 3.0. |
Warranty | Polycarbonate: 10 years; Frame: 15 years. |
Doors | Two heavy-duty Dutch Barn Doors (front and back) with a keyed lock. |
Door Dimensions | 37.5" wide x 74" high. |
Roof Window(s) | 37.5" w x 39.5" h; equipped with an Automatic Window Opener. |
Polycarbonate Thickness | 16 mm triple-wall polycarbonate for enhanced durability and insulation. |
Assembly Time | Requires 2 to 3 people, estimated assembly time of 2 to 3 days. |
Boost Your Gardening Game with Optional Bundled Accessory Kits

RIGA XL Pro Accessory Kit
This collection of accessories for RIGA XL greenhouses (models 5, 6, or 9) includes shelves, LED grow lights, vents, fans, thermostat, heater, seed trays, hooks, and an installation kit.

Standard Accessory Kit
The standard accessory kit, a discounted bundle offered for all Riga models, includes a top shelf, bottom shelf (seed tray), and foundation frame base; pricing varies by model due to size differences in component accessories.

Assembly Facilitation Kit
The RIGA Assembly Facilitation kit contains a 25' metric tape measure, 10mm socket wrench, 10 mm open wrench, 2 20' J-hook ratchet straps, window restraint cables, Boss 399 silicone caulk (2 tubes), and a permanent marker.
Create A Consistent Growing Environment in Your Greenhouse

Intake Shutter Vent
The Intake Shutter Vent, used with an Exhaust Fan, controls airflow in the greenhouse and is available in 16", 20", and 24" sizes.

Solar Powered Exhaust Fan
Exaco's Solar Powered Exhaust Fan offers greenhouse ventilation without electricity and includes a lifetime warranty on the brushless motor.

Exhaust Vent with Fan
Available in 12", 16", and 20" sizes, circulates air to optimize growing conditions and comes with a 110-volt cord, plug, and an optional thermostat.

Bio Green Palma Greenhouse Heater
Portable and powerful, this lightweight greenhouse heater safeguards your plants against cold weather.

Bio Green Thermo2 Digital Thermostat
A digital thermostat provides precise control over your greenhouse's growing environment.

Dayton Big Red Heater
Heats up to 600 square feet with auto overheat protection and a temperature range of 37-113?F.
Expand Your Greenhouse's Capabilities with Specialized Add-Ons

Additional Roof Vent
The RIGA Automatic Window Opener features a quick-release arm for easy disconnection during bad weather.

Spindle Roof Opener
Manual roof window opener that works like a large threaded screw. Long handle is needed to operate, not included.

Sash Lock
Recommended to shut roof windows in winter and stormy weather. Also used to shut top half door.

Roof Window Restraints
The roof window restraint kit uses two 15-inch stainless steel cables with nuts and bolts to protect auto-openers from strong winds.
Maximize Space and Accessibility in Your RIGA Greenhouse

Top Shelf
Show off your plant babies with a 10" wide top shelf. Price and length varies per size.

Bottom Shelf
Store your tools on a 25" wide bottom shelf. Price and length varies per size.

Drop Door Extension Kit
To raise greenhouse 20? when placed on stem wall. Sizes vary per greenhouse model.
From Foundation to Roof ? Essential Miscellaneous Add-Ons
The foundation frame for Riga Greenhouses can be installed in a trench without concrete and is available in various sizes and prices per model. | T-bolts easily insert into greenhouse profile channels and come in a set of 5 with adjustable length hooks. | The kit for vining plants includes 10 plastic inserts, hooks, and a small stainless steel S-hook, and installs easily in greenhouse channels. | Suitable for greenhouses up to 20 feet, features 5 adjustable misters. Easily customize the water flow and shorten the kit as needed. |
Solar-powered light mounted on a greenhouse wall, providing energy-efficient lighting to support plant growth and extend daylight hours. | Enhance plant growth with a lightweight 48" anodized aluminum grow light, perfect for the winter season, backed by a 5-year warranty. | The solid rubber greenhouse ramp facilitates easy wheelbarrow access and measures 49cm wide by 31cm long by 10cm high. | Stainless steel hammerhead bolts and nuts for attaching accessories to aluminum frames, available in 12mm (Victorian) or 15mm (RIGA) lengths. Set includes 20 bolts and nuts. |
RIGA XL Greenhouse Overview and Installation Steps Videos
WASHING INSTRUCTIONS:
Machine wash separately in cold water on a gentle cycle. Tumble dry separately on low heat. Add QE Home Wool Dryer Balls to reduce wrinkles and increases drying efficiency. Touch up with a low heat iron as needed. Do not bleach or dry clean.