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Beyond Organic: PRO-MIX HPO

heart shaped soil

Finding quality organic products has become an important mission for many people in the cannabis industry. A significant number of growers look for ways to avoid using pesticides, herbicides, and other harsh chemicals. Growing organically not only aligns with these objectives, but also enables producers to respond to the market’s demands.

According to Deloitte in their 2019 survey Nurturing New Growth, "17% of consumers look for organic cannabis products—though organic products may be more important for those buying ingredients for home-made edibles”.

In 2020, Premier Tech, under its PRO-MIX brand, began working on an organic growing media with the same qualities as its PRO-MIX HP product: high air porosity, improved breathability, and lower water retention. The goal was to develop the organic version of a product designed as a blank canvas for cannabis growers.

This blank canvas would allow growers and producers to create their own mix according to their unique recipes, with ingredients such as compost, organic fertilizers, bokashi, worm castings, etc.

Enters PRO-MIX HPO: an organic, superior, and consistent growing media base with the added values of MYCORRHIZAE and Bacillus, that growers can build upon using their own natural ingredients. PRO-MIX HPO offers low water retention and high air porosity, providing ideal conditions for strong root growth and thriving soil life.

Among many other benefits, PRO-MIX HPO is well-suited for low-light and high-humidity growing conditions, making it more difficult to overwater cannabis plants. Its high porosity also helps reduce the incidence of water-related problems (root diseases, algae, and fungus gnats), and holds less water for better leaching of fertilizer salts during the crop cycle.

Beneficial Microorganisms for an Organic Growing Media

PRO-MIX HPO contains two beneficial microorganisms that work together naturally to feed and protect plants: mycorrhizae and Bacillus. With them, cannabis plants are better equipped to deal with stressful conditions thanks to the symbiotic relationships with their roots. The soil also benefits from these microorganisms, experiencing improvements in its structure, filtration, and water-holding capacity, so growers can use less water.

Mycorrhizae are the beneficial associations between a mycorrhizal fungus and roots, which boost the plant’s water and nutrient uptake. This increases the plant’s resistance to environmental stresses such as drought, compaction, salinity, low fertility, and transplant shock.



  • Expand root system growth
  • Enhance nutrient & water uptake
  • Increase tolerance to stresses
  • Reduce transplant shock

Bacillus are gram-positive bacteria with high motility that colonize plant roots. They form a biofilm around the root system, creating a protection against pathogens. Bacillus also increase the plant’s disease resistance, reducing the need for fungicide soil drenches, while accelerating seed germination and plant establishment.



  • Increase the number of root hairs for better nutrient absorption
  • Accelerate seed germination
  • Increase plant growth

Moreover, the overall improvement of the plant’s health enhances its natural defense mechanisms against pests and diseases, which help reduce mortality rates and the need for pesticides. This allows growers to find efficiencies for better cost management and higher returns on their investment.

PRO-MIX HPO is presented in a 3.8 cu ft. format, and it’s available in the US and Canada.

The information in this article was up to date at the time of publishing. Because of its continuous improvement policy, Premier Horticulture reserves the right to halt manufacturing, change products, or revise technical data and prices without further notification.

The availability of BIOFUNGICIDE based products in certain States may depend upon specific applicable State law or regulation. It is the user’s responsibility to ensure the use of such product is State compliant in the State where you plan to use it and Premier Horticulture disclaims any liability in this regard.

Product availability may vary depending on the territory. Premier Horticulture is not responsible of the use of its products in territories where cannabis is prohibited. All rights reserved. PRO-MIX and HP are registered trademarks of Premier Horticulture Ltd. BIOFUNGICIDE and MYCORRHIZAE are trademarks of Premier Tech Ltd. and are used under license by Premier Horticulture Ltd.

For more information, contact your Premier Tech Grower Services Representative:


   Ed Bloodnick           Nathan Wallace-Springer           Lance Lawson           Victor Brantly

Ed Bloodnick
Horticulture Director
South Eastern US,
Japan and Overseas 

Nathan Wallace-Springer
Horticulture Specialist
South Eastern US

Lance Lawson
Horticulture Specialist
Western US
and Western Canada

Victor Brantly
Horticulture Specialist
Central US

Troy Buechel Susan Parent  Jose Chen Lopez  

Troy Buechel
Horticulture Specialist
Eastern and
North Eastern US

Susan Parent
Horticulture Specialist
Eastern Canada and
North Eastern US 

Jose Chen Lopez
Horticulture Specialist
Mexico and
South Western US




PRO-MIX® is a registered trademark of PREMIER HORTICULTURE Ltd.

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