Organic Growth Maximized
Why Use GrowIT® Greenhouses

Why Use Greenhouses

Organic Growth Maximized

Extend the Growing Season

Start seedlings earlier and let plants grow later in the season.

Protection from Harsh Weather

Protect seedlings and other fragile plants from the elements. Comfortably garden inside the greenhouse when it’s cold and raining outside.

Grow a Larger Variety of Plants

Control the humidity and temperature to raise plants that normally could not be grown outdoors.

Extend Your Growing Season.

Average Growth of Tomato, Pepper and Marigold Plants Average Growth (millimeters) Weeks of Growth
Total Water Consumption Gallons of Water Consumed Months

The Results Are In.

At ShelterLogic, different greenhouse cover materials were tested during the spring growing season. The results are the average growth and water consumption of the plants tested: tomatoes, peppers, and marigolds. During the testing, the greenhouses were ventilated with increased daytime temperatures.

Why the Greenhouse Covers Work

Organic Growth Maximized


The initial cost per area covered of a ShelterLogic GrowIT® Greenhouse can be as little as one-sixth the price compared to corrugated polycarbonate greenhouses. Scrim Polyethylene covers may cost as much as GrowIT® covers, but will not last as long, meaning more cover replacements and cost.

Ease of Use

The greenhouses can be assembled in a little over one hour. The entire building can be moved with as little as two people as growing season demands change. The GrowIT® fabric offers a balance between cold weather insulation and overheating prevention due to fluctuating temperatures. When the temperature gets warm the cover, doors, and vents can be opened to provide exceptional ventilation.


The GrowIT® triple-layer, heat bonded rip-stop translucent cover will outlast similar fabric greenhouse covers. Common Scrim Polyethylene covers can easily tear or puncture, and likely last one season. The easy to assemble GrowIT® cover eliminates the stress points, which means the GrowIT® cover can be removed at the end of the season, stored, and used again.


The GrowIT® fabric is a good thermal barrier when compared to many other cover materials. It provides good insulation for plants while preventing over-heating, which requires less water, ventilation accessories, and attention.

Light Transmission

The GrowIT® translucent fabric is not clear like other greenhouse materials such as polycarbonate for a good reason. The translucent fabric allows a significant amount of diffused light to reach the plants, while reducing the amount of harmful UV light. The diffused light reduces shadows and scorching to provide consistent lighting for all exposed parts of the plant, not just the tops. This means less damage to plants as well as reduced fungus and harmful insects.


A range of styles and sizes to fit any need.

GrowIT® Backyard Greenhouse with Integrated Shelving

6 x 8 x 6 ft. 6 in.


GrowIT® Greenhouse-in-a-Box®

6 x 8 x 6 ft. 6 in.


GrowIT® Greenhouse-in-a-Box®

10 x 10 x 8 ft.


GrowIT® Greenhouse-in-a-Box®

10 x 20 x 8 ft.


GrowIT® Heavy Duty Greenhouse

12 x 20 x 8 ft.


GrowIT® Heavy Duty Greenhouse

12 x 24 x 8 ft.


GrowIT® Round Raised Bed Greenhouse

4 x 4 x 1 ft. 11 in.


GrowIT® Peak Raised Bed Greenhouse

4 x 4 x 2 ft. 4 in.


GrowIT® Heavy Duty Round Greenhouse

12 x 20 x 8 ft.


GrowIT® Heavy Duty Round Greenhouse

12 x 24 x 8 ft.


GrowIT® High Arch Greenhouse

13 x 20 x 12 ft.


GrowIT® Greenhouse-in-a-Box® Pro

12 x 20 x 8 ft.