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Customer reviews for Backyard Discovery 12' x 7' Slant Roof Cedar Greenhouse - DIY for
Backyard Discovery 12' x 7' Slant Roof Cedar Greenhouse - DIY
4.9 out of 5 stars
stars
257 ratings257 reviews
  1. 5 stars90% (231)
  2. 4 stars8% (21)
  3. 3 stars0% (0)
  4. 2 stars2% (4)
  5. 1 star0% (1)

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Showing 21-30 of 257 reviews
Nov 30, 2025
Angel
5 out of 5 stars review

Built To Last Designed To Impress

I recently purchased the Zalie 12 x 7 greenhouse, and as a first-year plant parent, I honestly couldn’t be happier with my choice. From the moment it arrived, the quality and attention to detail were obvious. The cedar wood frame feels incredibly sturdy, and the pre-stained finish gives it a beautiful, modern look that fits perfectly in my outdoor space. What impresses me most is the durability. It’s Pro-Tect™ tested to handle up to 4,400 pounds of snow load and winds up to 100 mph, which gives me huge peace of mind—especially with the included 5-year warranty. The commercial-grade 4-wall polycarbonate panels really make a difference, too. With my heater running, the greenhouse stays extremely warm, and I’ve already noticed how much better my plants are doing in this well-insulated environment. The built-in ventilation system is another big plus. The temperature-activated exhaust fan and two easy-open windows keep the air circulating and help maintain ideal growing conditions. I also love the thoughtful interior layout—86 square feet of space, a built-in workstation, and over 23 feet of shelving make it easy to stay organized. The PowerPort™ with electrical outlets and USB ports, as well as the interior and exterior hose hookups, make daily watering and using accessories super convenient. Assembly was straightforward thanks to the pre-cut, pre-drilled pieces and the step-by-step instructions on the BILT® app. Overall, this greenhouse has been hands down one of the best investments I’ve made for my plants. It’s durable, functional, and keeps my growing environment perfectly warm. As a new plant parent, I couldn’t ask for a better setup, and I highly recommend it to anyone looking for a reliable and stylish greenhouse.

Review from backyarddiscovery.com
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Mar 24, 2026
Ssss
5 out of 5 stars review

Fantastic greenhouse

I could not be more aesthetic about the green house. The materials are super solid and the instructions were very easy to follow. It took a while, but there was no issue with almost laid out in the instructions. The temperature control and internal water spigot are game changers. Excited for this season.

Review from backyarddiscovery.com
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Dec 16, 2025
Rjohnso7
5 out of 5 stars review

Sturdy and beautiful greenhouse

we bought this for garden starters, herbs, and to keep our lemon and lime trees (planted in 55 gallon trash cans) during the winter time in Oklahoma. Beautiful cedar wood, extra thick poly panels. Following the construction instructions through the BILT app is a must and easy to follow with 3D pictures.

Review from backyarddiscovery.com
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Jan 6, 2026
AmiGail
5 out of 5 stars review

great greenhouse!

WE bought this in fall and have been assembling bit by bit as the weather permits, here in northern Illinois. It is an amazing kit, well made with great directions to follow. Since we couldn't lay out all the pieces, one of my jobs was finding the parts, that that was simple as each box comes with a list of what it in it. It is beautiful and looks amazing on our lake shore. Can't wait til summer to grow some great plants! For the winter it is going to be a warming house for ice skating! Love it, Glad we decided to go with this kit instead of build from scratch. I honestly think with the quality, it was less to use this kit than to build ourselves!

Review from backyarddiscovery.com
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Feb 12, 2026
Linda K
5 out of 5 stars review

They thought of everything!

We received our Zalie kit in single digit temps with the big snow/ice storm on the way. I’m a 69 yr old woman and was able to assemble the walls myself (keeping front and back in two sections for easy transport). My husband and neighbor carried each section to our site and we completed the exterior build. Assembled the roof on site which was easy. We assembled per the instructions (very detailed) but completely out of order so we could seal the exterior. Entire exterior build took three days. Once we cleared a path through the snow I completed the interior. I added an upper shelf to store my flats/pots along with grow lights on chains. We still need to add the metal roof trim when we can get near the building. I anchored the roof panels with more flashing tape until then and it kept water and wind out. Needless to say - this is a fabulous product and I am thrilled to have one. Now, on to seeds!

Review from backyarddiscovery.com
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Mar 11, 2026
Appleblossom2
5 out of 5 stars review

Great Product

We received our greenhouse last summer, we kept it at cool temp all winter, about 40 degrees and had flowers all winter. Wonderful. only problem was it got so hot in there in the summer, that the controller for the auto fan burned up. HELP, can you tell us which one to order that will control the fan. Have started our seeds, but a little difficult so far to keep it from getting too hot. I have installed some shades and I think the fan will help immensely. It still gets to freezing at night here in Northern Nevada. Love the product and recommend it. It was fun to put together and we look forward to many years of use. Thank you

Review from backyarddiscovery.com
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Jan 1, 2026
ColoradoGrif
5 out of 5 stars review

Zalie in Colorado

Love the Zalie greenhouse kit. It was easy to put together with all parts well marked and extras included just in case. I’m using it to test growing conditions in Colorado. You can follow along on YouTube at he Three Minute Greenhouse Asian updates are 3 minutes or less. I wish Backyard Discovery had a model that insulated the north wall instead of having polycarbonate there when sun never hits it. But quality at a great price makes it a good starter to insulate on your own.

Review from backyarddiscovery.com
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Apr 4, 2026
Veggies
5 out of 5 stars review

So well thought out

We are so excited about our new greenhouse. It was a dream to put up and it is so well thought out. Exactly what I was looking for with ventilation and fans as well all my plants are ready to grow this summer and it fit perfectly on my back patio

Review from backyarddiscovery.com
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Apr 12, 2026
Shelby
5 out of 5 stars review

As advertised

Only tried this kit because the reviews were so good. Unboxing and organizing was tedious. Could not believe how easy assembly was. The pre-drilled holes and labeling system was great.

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Apr 13, 2026
Holly
5 out of 5 stars review

Awesome product!

Bought this about 6 weeks ago. My husband and I were able to assemble it no problems! And we are both retired! Love the look of it and am looking forward to using it!

Review from backyarddiscovery.com
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