The open top grow bag is the new delivery system solution for cannabis producers. With eight pre-made drip holes, a tear-off opening, and its availability in two sizes (1 ft3 and 0.5 ft3 loose-fill growing medium, equivalent to 7 and 3.5 gallons respectively), the open top grow bag solution ensures ease of use.

Its multiple openings improve aeration in the root zone for equal air distribution, increasing the breathability of the container and promoting root development. It includes mycorrhizae which enhance root growth, water and nutrient uptake, increase plant resistance to environmental stresses such as drought, compaction, salinity, and low fertility, and reduce transplant shock.

 

Benefits of the Open Top Grow Bag

One of the frequent problems when sowing or transplanting is the mess that remains in grow rooms or spaces. This new delivery system comes ready to use, without the mess. This easy-to-use system has an integrated tear-off opening, eight drip holes (2 on each side and 4 below), and is adapted for air distribution inside the bag. Keeping the interior of the bag lighter than usual containers will contribute to better root development and distribution by avoiding extra heat on the root system. The PRO-MIX® HP® open top grow bag solution helps you keep a cleaner growing environment, avoid contamination, and reduce the risk of plant disease. Grow room sanitation, disinfection and sterilization are simplified thanks to a quicker, cleaner set-up, with reduced manipulation.

PRO-MIX HP AGTIV REACH OTGB tear off

Formulation

With its high perlite content, PRO-MIX® HP® provides a great growing environment when you look to improve drainage capacity, increase air porosity, and reduce water retention. The added benefits of fibrous peat moss and coarse perlite make this formulation ideal for the grower who requires a superior-quality product adapted to their needs for watering flexibility and crop seasonality. The benefits in PRO-MIX® HP® are:

• Dries out faster than general-purpose, peat‑based mixes
• Well suited for low-light growing conditions and high humidity
• More difficult to overwater crops
• Reduces incidence of water-related problems (root diseases, algae, and fungus gnats)
• Holds less water for improved leaching of fertilizer salts during the crop cycle

Beneficial Microorganism

The PRO-MIX® HP® AGTIV REACH® open top grow bags include mycorrhizae. By incorporating beneficial mycorrhizae, they support a more efficient use of water and nutrients, helping plants reach their full potential in both yield and quality.

Mycorrhizae form a symbiotic relationship with plant roots, extending their reach into the substrate to improve access to water and nutrients. This enhanced absorption supports stronger, more uniform plant growth and helps plants better cope with environmental stresses.

Mycorrhizae under the microscope.

Mycorrhizae

Mycorrhizae from a microscope

Summary

These PRO-MIX® HP® open top grow bags were designed to perform:

  • Less labor
  • Quicker set-up
  • Easier handling
  • Pre-made drain holes
  • Easy tear-off
  • No need for cleaning or sterilization
  • Decreased risk of handling contamination
  • No containers required

For more information, contact your Premier Tech representative.

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