Eco-friendly plant growing medium has revolutionary impact for green roof applications

by whatworks on April 13, 2009

A new product has emerged that will revolutionize the gardening industry, including green roofs. Proprietary, patented growth matrix panels, made from recycled plastic, provide a perfect growing medium for plants and require no soil, minimal water (watering cycles of 30 to 60 days, and beyond), and greatly reduced need for fertilizer. Plants tested in the medium including bedding plants, small and medium-sized shrubs, turf, and interior plants, thrive in the environment. While the expanded plastic medium absorbs w

Green roof panels by Freedom Garden Products

Green roof panels by Freedom Garden Products

ater, engineered pores throughout it allow the roots of the plants to breathe, eliminating potential over-watering problems.

Discovered by Joe Byles, CEO of Freedom Garden Products, the lightweight material provides the perfect solution for green roofs.  “Currently, green roofs need anywhere from one half a foot to several feet of soil,” Byles explains.  “This amount of soil can weigh from 20 pounds per square foot up to hundreds of pounds per square foot, making a green roof or general rooftop garden prohibitive for older buildings.” Byles continues, “Also, plant material palettes have been limited.  With this material, there’s a wide range of shrubs, including woody ornamentals; bedding plants, and turf that can be planted on rooftops.”

The application has huge implications for streamlining green roofs and making them more cost affordable. “Companies save considerable money over time in utility costs with green roofs,” states Byles, “but installation has been costly and difficult.” Imagine having to lift tons of planting soil up to a roof top.  Now, green roof installers can fold the panels and carry them all to the roof via the elevator. “They’re very light weight,” says Byles. “Because the engineered material is flexible and continuous, you can just fold them up and carry a large number of them together with the plants in place.”

Byles, an inventor with more than 13 patents to date, is an aerospace engineer and a Master Gardener.  He discovered the growth matrix while researching fuel management in supersonic aircraft when he realized that it is the near perfect plant growth medium, and that it maintains air and water in the perfect ratio with no drainage. He then incorporated the material into landscape panels.  During university testing the product demonstrated up to 100 percent efficient use of water. The ability to grow plants in a non-drained state means all water applied to the plants is available with no loss.  The unique manufacturing process of the material ensures that air is always maintained within the matrix where the roots of the plants can access it.   In addition to green roofs, product application includes hanging flower baskets, bedding plant containers and large garden panels used to grow bedding plants that can be placed in landscapes in minutes with the benefits of the greatly extended watering intervals and reduced chemical usage.  Color rotation is incredibly easy with the panels on rooftops and in gardens.

Byles, residing in Texas, has also tested the product in extreme heat and in California locations subject to the Santa Anna winds.  “Plant material has done extremely well in these panels, no mater what the heat, wind, or rain conditions have been,” Byles says.

Gary Mangum, co-owner of Bell Nursery in Burtonsville, Md. with greenhouses throughout the mid-Atlantic and Ohio, has tested the panels.  “We have placed panels in various conditions to test vulnerability,” Mangum states. “In some cases, the plant material went 90 days before it required watering.”  Mangum also tested turf which went seven months and still was not in need of watering or mowing.  “In this material, turf will only grow to the height of its potential root depth,” Byles explains. The same theory does not apply to bedding plants or shrubs which have grown to normal heights in the medium.

For more information on green roof panels or other products by Joe Byles and Freedom Garden Products, please visit www.freedomgardenproducts.com or call 830-305-2299.

{ 3 comments… read them below or add one }

Jorg Breuning April 14, 2009 at 7:00 am

It seems like a very interesting idea.
I am desperately interested in a sample and would like to learn more about the longevity of the base product as well as about the long term function. Is it a green roof system or just panels?
From mineral components in engineered soil we know they will last for ever (some of them already 10,000 years old) and can be recycled for the same purposes again and again. How does that work with these panel .i.e. when people use it for annuals?
Thanks for posting this amazing idea.

whatworks April 21, 2009 at 10:14 pm

Thanks for your comment, Jorg. We think it’s a pretty amazing idea, too, and you raised some good questions. We’re going to follow-up with Freedom Garden Products and see what they say. We’re also hoping to hear from folks who have implemented the panels (our understanding is that thus far, they are just panels).

Please let us know if you find out more. Our mission is to find green building solutions that actually work, and to foster discussion amongst green builders – both professionals and d.i.y-ers.

Central Ohio May 22, 2009 at 3:10 am

For Central Ohio going green does not have to be hard. It can be the easiest thing you do today. You may wonder why it is necessary. The fact is that it is necessary because you want your children, or your grandchildren to enjoy the planet that you have so graciously been able to delight in.

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