Retail Greenhouse Structures, Wholesale Greenhouses, Plant Production, and More

The ornamental greenhouse horticulture market, represented by the floriculture, landscaping, and garden center retail sectors, incorporates tasks related to the cultivation, production, and management of flowers, foliage plants, ornamental grasses, nursery stock, trees/shrubs, vegetable transplants, and more.

Rough Brothers/RBI (founded in 1932) and Nexus Greenhouse Systems (founded in 1967) have served the horticulture industry for decades, providing the highest quality, best-crafted, and most reliable greenhouse structures to the most successful growers.

They have now joined forces under a dynamic new brand—Prospiant—to cover your greenhouse needs from end-to-end.

The Greenhouse Horticulture Market

Wholesale greenhouses and retail greenhouse structures play a central role in facilitating year-round production and maintaining the optimal growing conditions that premium specialty crop production demands.

Innovative automation, advanced growing systems, and other technologies have revolutionized the horticulture industry, contributing to increased productivity and operational efficiency.

Thanks to these advancements, growers and retailers now enjoy improved capabilities to meet consumer demands and drive industry growth.

A-Frame headhouse, Open-Roof retail greenhouse at White Oak Gardens

Services We Provide


  • Design and Consultation Services
  • In-house structural and mechanical engineers
  • Value Engineering

Build: Construction Services

  • Engineering
  • Site Development
  • Licensed, insured, and OSHA-certified insallers


  • Control and Zoning Systems
  • Automation and Growing Equipment
  • Heating Systems
  • Ventilation


  • Operations and Maintenance
  • Ongoing Support, Training, and Education

Prospiant’s Role

Prospiant provides garden center retail and wholesale greenhouse growers with world-class commercial greenhouse structures, benching, control systems, water treatment, HVAC, irrigation, and lighting.

We serve:

  • Production growers
  • Young plant growers
  • Rooting stations
  • Plug growers
  • Retail garden centers
  • Specialty growers
  • Wholesale greenhouses
  • Nurseries
  • Public Gardens
  • Research and Development
  • Educational Institutions
  • And more…

Our greenhouse specialists are seasoned pros, with years in the field working on countless projects for operations big and small.

Architectural design, value engineering, installation, integration, operations, maintenance, expansion — no matter your need, however simple or complex, there’s nothing we can’t handle.

Interior of Grand Teton production greenhouse at Visser Greenhouses

Prospiant is the largest North American greenhouse manufacturer of commercial greenhouses and retail greenhouse structures. With a comprehensive suite of greenhouse structures to offer you, we can meet all your greenhouse needs. If you don’t see what you want, just ask we also design and build customized structures.


Explore our equipment section, with everything from venting, benching, and HVAC to growing systems, retail greenhouse supplies, and more. If you don’t see what you need here, just ask. We offer customized solutions to cover every growing situation.

Wide shot of the New York Botanical Garden

Being new to growing in a Prospiant greenhouse is both exciting and overwhelming. After the structure was completed, Paul Golden (CEA engineer) helped me fine tune different systems to ensure the optimal start of the new greenhouse. Not only did Paul help me fix a leaky wet wall by sending him videos of the problem, he also got me lined out on wet wall maintenance. He assisted me until the issues were resolved, and his customer service has made all the difference. Thanks Paul! Thanks again Paul, I still can’t believe that I get to operate this Prospiant greenhouse. It’s the best balance between my dream come true and a huge reality check

Nikki Wilson Red Tail Gardens
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