PRO-MIX HP Mycorrhizae Soilless Potting Mix, 2.8 cu. ft. - Pallet of 57 Bags

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PRO-MIX HP Mycorrhizae

PRO-MIX?« HP MYCORRHIZAE?Ö is a high porosity peat-based growing medium ideal for water sensitive crops, rooting cutting and/or low-light growing conditions that contains a beneficial mycorrhizal inoculum (Glomus intraradices). These microscopic fungi attach to and colonize root systems to benefit plants by increasing water and nutrients acquisition (especially Phosphorus, Copper and Zinc). This symbiotic relationship between fungi and plant results in overall improved plant growth. PRO-MIX HP MYCORRHIZAE?Ö is suitable for a wide variety of horticultural plants, especially when high air capacity and extra drainage are required.

Chemical Characteristics

PRO-MIX?« HP MYCORRHIZAE?Ö contains a balanced nutrient charge to promote initial plant development. During the course of crop production, it is necessary to initiate a fertilization program. The program selected should consider water nutrient content, crop type and stage of plant development. Begin fertilization within 7 days after planting and maintain fertilizer applications throughout the course of crop production. To insure plants receive proper nutrition, it is advisable to periodically analyze nutrient content of fertilizer solution, growing media and plant tissue to insure proper levels of nutrients are maintained throughout the crop cycle.


  • Sphagnum Peat Moss (65-75% in volume)
  • Horticultural Grade Perlite
  • Calcitic Limestone
  • Dolomitic Limestone
  • Macronutrients
  • Micronutrients
  • Wetting Agent

Physical Characteristics

  • Air Porosity: 14 - 20% by volume (6 inch pot)
  • Bulk Density: 8 - 10 lb./cu.ft. (0.13-0.16 g/cm3)
  • Moisture Content:30 - 50 % by weight
  • Saturated Weight: 55 lb./cu.ft. (880 g/l) avg
  • Water-Holding Capacity: 50 - 70 % by volume

Chemical Characteristics

  • pH Range: 5.2 - 6.2 (S.M.E.)
  • pH Incubated: < 6.2 after 7 days saturation (S.M.E.
  • Electrical Conductivity: 1.0 - 1.8 mmhos/cm (S.M.E.)

Features & Benefits:

  • Dries out more frequently than general purpose, peat-based mixes
  • Well suited for low-light growing conditions and high humidity
  • Less 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 crop cycle
  • MYCORRHIZAE improves overall growth of plants and increases yields of flowers/fruits.
  • High perlite content, peat-perlite based growing medium
  • Low water retention
  • Designed for water sensitive crops
  • Ideal for cultural conditions with low-light and excess moisture/humidity
  • Includes MYCORRHIZAE mycorrhizal inoculum (Glomus intraradices) fungi


  • Bedding Trays
  • Foliage
  • Hanging Baskets
  • Long-term Crops
  • Perennials
  • Potted Flowering
  • Propagation
  • Stock Plants
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Additional Information

Weight (lb.):
Prop 65:
Length (in.):
Width (in.):
Height (in.):
Shipping Restrictions:
Grow Media:
OMRI Certified:
Total Grow Media Volume:
159.6 cu. ft. (57 - 2.8 cu. ft. bags)
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