Building Green

In greenhouse construction, as in all other areas of the industry, there is no one-size-fits-all approach. Growers need to consider a number of factors, from location and climate to production and logistics, in the process of planning a new greenhouse.

But in the advent of the age of sustainability, growers are weighing another factor: green building. Is the process of building “green greenhouses” worth it in the grand scheme of things? Are there extra costs and what can be accomplished by sourcing green materials and environmentally friendly production choices? How can a grower get started down this path?

Greenhouse engineer A.J. Both of Rutgers University says, like the process of conventional greenhouse construction, in “green” construction, much depends on local conditions, crops grown, grower experiences and preferences, fuel cost and supply, greenhouse design and other variants. He adds that the individual grower’s definition of green building also plays a part in the process of building the greenest greenhouse, as well as where one might draw the boundaries – local, regional, national or global.

“The greenest greenhouse is planet Earth,” Both says. “Like other ‘green’ endeavors, the obvious benefits are to our environment and to our future, and there are no real drawbacks as long as the business maintains economic sustainability.”

With no current, standardized definition of a “green greenhouse,” its value is difficult to quantify and would depend on the operation, says Kurt Parbst of Ludvig Svensson.

“If there were a standard and a benefit, such as entry into a market or premium pricing, building green becomes part of the investment analysis,” Parbst says. “Each case would be different, so a good start would be to adopt current technologies that have been demonstrated to be efficient, arranged in a design that will make the operation profitable.”

Building From Scratch

New greenhouses should maximize energy conservation and recapture stormwater runoff, among other environmental objectives. Parbst says as part of this goal, new construction should be designed to deliver heat where it is needed to increase heating efficiency.

“Most plants grow closer to the floor than the ceiling,” he says. “Growing crops in cold weather is energy-intensive, so new greenhouses should have the economically viable level of insulation, which comes in the combination of glazing type and energy curtains.”

Rebates are available for growers using energy-efficient coverings such as double poly with an IR /AC layer or 8-millimeter polycarbonate, and some greenhouse manufacturers recycle construction materials.

“Green-Tek offers an exclusive polycarbonate buyback program, which reuses old polycarbonate, thus being very conscientious toward offering green programs,” says Erin Kelly of Green-Tek. “All Green-Tek plastic products are recycled.”

Many growers have opted to install biomass boilers, which burn renewable fuels. This is not only a greener option to burning fossil fuels, but it’s also cost-effective. Biomass energy is an unlimited and renewable energy source generated from the surplus of organic waste and agricultural waste generated every day. These fuels include:

• Wood cuttings, trimmings, wood chips, sawdust, etc.

• Paper/cardboard waste

• Agricultural waste (shells, husks, crop waste)

• Dedicated crops (corn, trees, grasses)

• Animal waste or other materials

Choosing hydronic, or hot water, heating systems over traditional forced air or space heater options is a green alternative that saves growers money without the additional investment of growing crops for fuel, as some growers with biomass boilers have taken on, according to Mike Kovalycsik of Delta T Solutions.

“Radiant heating systems offer accelerated germination, rooting and plant growth, as well as 20 to 30 percent fuel savings over conventional forced air heating,” he says. “Maximum soil and plant temperature control combine with the ability to create different temperature zones for growing flexibility.”

Consider cutting electricity use with the added potential of selling energy to the local power grid by installing wind turbines. Eagle Creek Growers was successful in obtaining alternative energy grants from the U.S. Department of Agriculture and the Ohio Department of Development to help pay for the turbine. The operation, based in Mantua, Ohio, is working toward installing another turbine and aspires to be fossil fuel free by the end of this year.

Capturing and reusing runoff can be accomplished relatively easily using recirculating irrigation systems, Both says.
“In addition, rainwater collection systems can be used to either supply additional water to the greenhouse system, or to replenish the underground aquifer, in case maintaining a certain groundwater table is important,” he says.

Growers can help prevent runoff and protect water quality by implementing the U.S. Environmental Protection Agency’s stormwater best management practices and learn more about the importance of protecting ground water.

Other important areas for environmental greenhouse design might include natural ventilation, coverings, curtains, flood floors and benches and drip irrigation.

LEEDing The Way

Growers can find guidance for green building through the U.S. Green Building Council’s (USGBC) LEED Rating System and Checklist for New Construction and Major Renovations, or on the USGBC website’s LEED Resource page.

LEED, which stands for Leadership in Energy and Environmental Design, is an internationally recognized green building certification system, providing third-party verification for buildings designed, constructed and operated for improved environmental and human health performance. LEED addresses all building types and emphasizes state-of-the-art strategies in five areas: 1) sustainable site development, 2) water savings, 3) energy efficiency, 4) materials and resources selection and 5) indoor environmental quality.

“I think most greenhouse operations would qualify for LEED silver recognition,” says Leigh Coulter of Growers Greenhouse Supplies (GGS). “Steel, aluminum, glass, poly, etc. are in many cases composed partially from recycled material. Steel uses scrap, glass uses broken glass, etc. Growers should look for help from greenhouse manufacturers and builders like GGS and JGS Limited that have LEED experience.”

The process of getting LEED certification for a green building is costly in that growers have to keep immaculate records of where materials are sourced and how they are used in the building’s construction, Coulter says. And while green building and LEED certification, by extension, are not currently mandated in the greenhouse industry, it’s likely the market will eventually demand more environmentally minded construction in the future.

“Today the benefits are mostly in personal satisfaction and marketing,” Coulter says. “In the future, the big box stores will be looking for growers who are LEED recognized to attract the consumer marketshare that values ‘green.’”

The USGBC also provides a number of reference books, including the LEED Reference Guide for Green Building Design and Construction, 2009 Edition, a user’s manual that guides a LEED project from registration to certification of the design and construction of new or substantially renovated commercial buildings. It is available for purchase on the USGBC website.

Leave a Reply

Latest Stories

February 11, 2016

Succulents: A Mainstay Of The Green Revolution

Succulents offer many options for growers to provide waterwise, low-maintenance plants that work well for green infrastructure and other environmentally focused projects.

Read More

February 10, 2016

Poinsettia Production On The Decline

Poinsettia production is on the decline in several of the top 15 poinsettia-producing states.

Read More
GrowIt! Logo

February 9, 2016

GrowIt! And MasterTag Partner To Enhance Plant Care Inf…

The partnership allows MasterTag to provide plant care instructions to the wide catalog of plants available on GrowIt!, which helps consumers find plants in their area.

Read More
Wally and Delores Steinhauser FEATURE

February 9, 2016

To Reflect Changes In Customer Buying, Wingard’s …

Owner Wally Steinhauser explains why he decided to re-brand his store and how his customers' lifestyles changed what type of products they wanted to buy.

Read More
Heather combo with a birds nest at Minter Country Gardens

February 8, 2016

Winter Combo Garden Ideas From Minter Country Gardens […

On a recent visit to Minter Country Gardens outside of Vancouver, British Columbia, we spied several combo gardens filled with cool-weather plants with a strong winter appeal.

Read More
Bob's Garden Center roadside sign

February 8, 2016

Roadside Signs: Research Shows What Works Best

If zoning laws for roadside signs seem random to you, there’s a fair chance you’re right. Until 2011, zoning boards did not have solid research to rely on when developing their rules. That has finally changed, thanks to a report from USSC Foundation.

Read More
Pot Mum Combos (Syngenta Flowers)

February 8, 2016

Syngenta Has A New Buyer, Will Not Divest Flower Seeds …

Syngenta has announced that it will likely approve an offer from ChemChina to acquire the company, which means it no longer plans to divest its flower seed business.

Read More
Suzanne Wainwright-Evans

February 8, 2016

Register Now For Biocontrols USA 2016 Workshop

Biocontrol is becoming a mainstream part of growing plants commercially. Every good program starts with quality products and a good supply chain. Register now to join us from 1:00-4:00 p.m. on March 4, following the conclusion of the education program at the Biocontrols USA 2016 Conference & Expo in Monterey, CA for a special event that will help you improve your biocontrols program. In this informative, real-world workshop led by biocontrols expert Suzanne Wainwright-Evans, owner of Buglady Consulting, you’ll learn: The key players that are producing beneficials How to check product quality once you get them The latest trends and practices growers are using to implement beneficials into their programs Important pitfalls to avoid. A roundup of the current biocontrol research that can help you be more successful in your production practices this season. Wainwright-Evans, a pest management specialist, has been involved in the green industry for more than two […]

Read More
Gotham Greens Queens

February 8, 2016

Gotham Greens Opens Newest Greenhouse In Queens, NY

The new facility, which was partially funded by grants based on reduced energy consumption, nearly triples Gotham Greens’ overall production capacity in New York.

Read More
Dr Allan Armitage

February 8, 2016

Why Succulents Have Become The Hippest Plants On The Ma…

Allan Armitage says succulents used to be relegated to the far end of the display bench, but their adaptability, decorative value, and low maintenance requirements have now made them a staple.

Read More
Travis Higginbotham

February 8, 2016

Biocontrols And Next-Generation Production

Biocontrols are becoming much more established in greenhouse production. In some cases, it’s the next generation of growers that’s helping to support the adoption of this next generation of pest control. Travis Higginbotham, R&D Manager for Battlefield Farms, in Rapidan, VA, is a great example. Brought on in 2014, he is helping Battlefield take the next step in product development, as well as become more efficient as a business and adapt to new technologies and demands from their customers with a more proactive approach. Higginbotham will share information on Battlefield’s nematode program at the Biocontrols USA 2016 Conference and Expo, March 3-4, 2016 in Monterey, CA. We asked him about the details involved with building a new biocontrols program, as well as the future of sustainability in greenhouse production. Q: What are the differences in costs involved in using biocontrols? What costs should growers consider, aside from the hard costs […]

Read More
Jim Zablocki, Plant Prod

February 5, 2016

Sign Up For A Webinar On Using Plant Nutrition To Impro…

The webinar takes place March 2, and covers how leading growers are using plant nutrition to minimize costs, reduce the number of factors they need to worry about, and lessen environmental impacts.

Read More
Biocontrols Conference and Expo 2016

February 4, 2016

Biocontrols 2016 Conference Offers Insights And Learnin…

The Biocontrols 2016 Conference & Expo, which takes place March 3-4, 2016, in Monterey, CA, brings together growers, pest control advisers, suppliers, researchers, and other segments of the industry to share the latest information on biochemicals, microbial pesticides, and beneficials, and help you put biocontrols to work in your operation.

Read More

February 4, 2016

Poinsettia Growers Discuss Their Recent Trials And Triu…

Growers from Pennsylvania, Illinois, and North Carolina describer their experiences trialing everyone’s favorite holiday season flora.

Read More
LiveTrends Copper Wire Orb

February 3, 2016

The Coolest New Retail Products From TPIE

During the recent Tropical Plants Industry Exhibition (TPIE) in Ft. Lauderdale, FL, the Garden Center Group embarked on a search for the coolest new products for garden retailers. Here’s what they discovered.

Read More

February 3, 2016

New Plants, Products, And Trends From TPIE 2016

Tropicals, foliage, and succulents may be the way to new consumers’ hearts, based on the cool ideas, products, and trends presented at the Florida Nursery Growers and Landscape Association’s (FNGLA) 2016 Tropical Plant Industry Exhibition (TPIE), January 20-22, 2016 at the Broward County Convention Center in Ft. Lauderdale, FL. The theme this year, Elevating Expectations, was fulfilled, renewing and reinvigorating attendees to carry forth their businesses into 2016 and beyond. TPIE showcases the latest trends in foliage, floral, and tropical plants, with a tradeshow of more than 200,000 square feet of show-stopping displays. While checking out new plants and products is a great excuse to travel to South Florida in late January, the threat of Storm Jonas bringing the snowstorm of the century to the Mid-Atlantic and Southern states had some show attendees booking flights early to get home before they were stranded. Still, reports from FNGLA said this year’s TPIE […]

Read More
Rhododendron ‘Dandy Man’ (Proven Winners ColorChoice Shrubs)

February 2, 2016

Spring Meadow Nursery Partnering With Proven Winners Eu…

The expansion creates a cohesive brand for what is now a global market, immediately introducing more than 24 shrubs to the European market, with the potential for 125 or more in the future.

Read More

February 2, 2016

19 Strategies To Strengthen The Horticulture Industry

In Greenhouse Grower’s annual State Of The Industry Survey, we asked how your operation is living the GROW initiative’s five pillars: cultivate new customers, demand quality, drive consumer success, invest in the industry, and sharpen business management. Here is what you had to say.

Read More
[gravityform id="35" title="false" description="false"]