Backyard growing reaches a new level with the Planta Sungrow 12. This heavy-duty greenhouse is built to protect your plants while retaining enough warmth to support 3 to 4 seasons of gardening. With smart engineering and durable construction, it delivers commercial-grade performance in a design that remains practical and accessible for home gardeners.
Exact size: 300cm x 240cm x 1200cm
Enjoy excellent airflow, a spacious interior, and a distinctive 2.4-metre roof height that helps keep both you and your plants comfortable throughout the day.
The greenhouse comes with:
Built with a galvanized steel frame used across the entire Sungrow collection, this greenhouse is rust-resistant and designed to withstand extreme climates. You can rely on it to protect your plants and maintain a stable growing environment regardless of the conditions outside.
Built this for the wifey over the summer. Well built, you will have to definitely tighten it up, caulk , weather stripping on doors. Overall I would buy again
Thank you, Scott! What a thoughtful project for your wife - we're so happy to hear the Sungrow 32 has been a great addition to your setup! You're absolutely right about the finishing touches like tightening, caulking, and weather stripping - those details really make all the difference in creating a well-sealed, efficient greenhouse that will perform beautifully for years to come.
It's wonderful to know you'd buy again, and we hope your wife is enjoying many successful growing seasons in her new greenhouse!
If you haven't already, I highly recommend joining our Facebook Community. It is a wonderful platform for novices to experienced Planta Greenhouse owners to share information. We have over 5000 members who share their ideas, DIYs, pictures, etc.
We love this product. We are a retired couple and built this Greenhouse by ourselves. I can’t believe how the veggies grow in here!!!
Thanks, Ray! We're impressed that you two tackled the Sungrow 32 on your own—what an accomplishment! It's incredible to hear how well your veggies are thriving in there. Nothing beats the satisfaction of growing your own produce in a greenhouse you built yourselves.
We installed our first greenhouse in 2022 on our high plain homestead at 9,500 feet elevation in the Colorado Rockies. At this altitude, even the warmest summer nights rarely get above 50°F, and strong winds can reach 60–80 mph with several feet of snow in the winter. Growing anything outside is nearly impossible—most crops either freeze or fail to grow due to the wind chill. We knew we needed the strongest greenhouse possible to withstand these extreme conditions.
After extensive research, we chose a 32' Sungrow kit from Planta and added two extension kits to make it 48' long. To ensure durability and year-round usability, we anchored it to a 4-foot underground foundation made of concrete blocks, effectively turning it into an underground greenhouse. The earth and concrete walls act as thermal mass, storing solar heat and helping to maintain nighttime temperatures without the need for extra heating. Even in winter, the inside stays 20–30°F warmer than outside, though it still drops below freezing.
In the coldest months, we repurpose the greenhouse to house small animals. Chickens and rabbits live inside during the winter, providing fresh eggs and natural fertilizer for the soil, ready for spring planting. It’s a bright, spacious environment that keeps them safe and warm while making the most of the structure during the off-season.
The greenhouse not only functions well—it looks amazing. It's become a multi-purpose passive solar building, and in winter, it turns into a…
We installed our Planta Greenhouse right next to our garden, and it’s been a fantastic addition to our growing setup. We use it to grow a wide range of crops including winter melon, cucumbers, cantaloupe, tomatoes, chayote, and bitter melon. One of the biggest advantages has been the extended growing season—it’s allowed us to get more from our plants, especially in a region with strong winds and occasional heavy snowfall.
The purchasing process was smooth and easy, with excellent customer service throughout. Before setting up the base frame, we built the beds and lined them with dead hemlock and cardboard to help retain moisture. We also installed gravel and proper drainage around the outside, which helps keep the soil inside well hydrated.
The greenhouse has proven to be strong and secure. The panels do a great job of transmitting heat, and the automatic vents regulate the temperature well. We're so pleased with how it’s performing that we’re considering adding another one next year. I’ve already recommended Planta to several people—it’s been a game-changer for us.
In 2024, I installed my first greenhouse with the goal of creating a true four-season growing environment in Northwest Montana—and the experiment was a success. The greenhouse is equipped with hydronic radiant-heated beds and air heat powered by an outdoor wood boiler. A 5000 CFM exhaust ventilation system and 50% shade cloth help regulate ambient temperatures during the hot summer months, keeping conditions within optimal growing ranges year-round. With careful planning and the right systems, this greenhouse shell supports nearly any fruit or vegetable, regardless of the season.
The structure includes raised beds, a radiant-heated table for starts, shelving, and a thermostat-controlled setup for heating and cooling. I’ve also integrated grow lights and a timed irrigation drip system. Buying from Planta was easy, and customer service was great throughout the process.
My favorite part? Harvesting fresh greens and herbs in the dead of winter. If you're considering a similar four-season setup, I’ve learned a lot through this build and would be glad to share insights.
Greenhouses are amazing products, and they require special shipping and handling. That is the reason, we have been working diligently over the past year to secure preferential shipping rates for our customers. Shipping prices will be shown on the checkout page based on your address.
