Premier Tech Horticulture

Introduced in 1968, PRO-MIX has always provided commercial growers and consumers with cutting-edge and value-added growing media products. PRO-MIX growing media are enhanced with high-performance active ingredients and are considered a reference in the market, as they represent innovative and unique solutions. Fine-tuned for growers who seek efficiency, superior plant quality, disease suppression and resistance to environmental stresses, PRO-MIX optimizes results. Choose PRO-MIX products with MYCORRHIZAE, BIOFUNGICIDE or both to deliver outstanding plant quality and crop performance. Premier Tech Horticulture, a Business Unit of Premier Tech, is among the North American leaders of peat moss-based growing media production and distribution. Thanks to its wide network of plants and distribution locations, Premier Tech Horticulture’s products are offered throughout North America and Latin America.

Company details

1, avenue Premier , Rivière-du-Loup , Québec G5R 6C1 Canada

More Office Locations Locations Served

Business Type:
Industry Type:
Agriculture - Horticulture
Market Focus:
Internationally (various countries)


Innovation means proposing new ideas, creating innovative concepts and bringing to life what was once only a thought. It’s making room for change and openness in order to move forward. In short, it means standing out!

Innovation has resulted in products, processes and methods that are unique and distinctive. For many years, clear leadership has been demonstrated, whether by being the first peat moss producer to ever bag growing media for market distribution, or by defining standards in growing media with active ingredients.

Twenty years after the first growing medium with mycorrhizae was launched, PRO-MIX is considered a reference in the industry, thanks to its ability to innovate and offer cutting-edge solutions through a unique selection of active ingredients delivering outstanding results.


For Premier Tech Horticulture, obtaining certifications is a validation of the methods, technologies and products developed. For customers, certifications issued by independent organizations represent a guarantee of quality and performance. For instance, obtaining the VeriFlora® Certified Peatland Products certification from Scientific Certification Systems, in 2016, proves the excellence of the company’s practices regarding sustainable development in the field of horticulture. The requirements of that certification for responsible peatland management regard every aspect of the production: from field preparation before harvesting to peat bog restoration, including product quality control and team members’ work conditions.

FROM 1923 TO 1983 1923

Premier Peat Moss Corporation is the very first company to distribute peat moss products in the Eastern United States.


Premier Peat Moss Corporation adopts plastic bags and considerably improves its distribution process.


Bernard Bélanger acquires Tourbières du Saint-Laurent in Rivière-du-Loup.


Tourbières du Saint-Laurent introduces vacuum harvesting. This innovation allows for large-scale production.


Official launch of PRO-MIX, the first line of “earthfree” growing media developed from research by the University of Cornwell. Since then, PRO-MIX has been the industry’s standard regarding professional growing media.


Creation of Tourbières Premier Ltd.
The company emerges from the association of Tourbières du Saint-Laurent and Premier Peat Moss Corporation.


Harvest begins in Western Canada with the opening of a peat bog in Manitoba. The company expands its distribution network from coast to coast.


Opening of the Research Center in Rivière-du-Loup. Research in horticulture begins with the inauguration of the largest research center dedicated to the development of biotechnologies linked to growing media. Notably, this approach has led to the creation of an innovative technological platform that allowed for the production of mycorrhizal inoculants worldwide.

FROM 1986 TO TODAY 1986

Tourbières Premier becomes the first manufacturer in the peat moss industry to automate its bagging process entirely.


Premier Tech Horticulture launches its new heat-sealed bags which protect products from water and contaminants.


Loading by the unit is replaced with a complete palletization program, which reduces handling costs and risks of damages to products during transit while facilitating product display in stores.


Official launch of the new lines of professional peat and bark-based growing media and PRO-MIX® with Options, which broaden the product offer intended for greenhouse growers.


Launch of the PRO-MIX Ultra series which offers consumers optimal performance for minimal plant care.


Innovation on the market with the launch of PRO-MIX with BIOFUNGICIDE, the very first growing medium with a biological control agent added to be approved by the United States’ Environmental Protection Agency (EPA).


Establishing a new standard in the industry, Mycorrhizae Premier Tech, the most evolved mycorrhizal inoculant on the market, is now a standard ingredient in the PRO-MIX products.


Premier Tech Horticulture launches the MEGA BALE, the largest professional size ever offered on the market.


Launch of new product lines, which comprise renowned and well-liked products as well as novelties. Those simplified lines suit the current needs of horticulturists.