PRO-MIX HP MYCORRHIZAE
HP - high porosity
With its high perlite content, PRO-MIX HP provides a great growing environment to growers looking for a significant drainage capacity, increased air porosity and lower water retention. The added benefit of fibrous peat moss and coarse perlite makes this formulation ideal for growers who require a superior-quality product adapted to their needs for watering flexibility and crop seasonality.
Crops
- Annuals
- Foliage plants
- Potted flowering plants
- Greenhouse vegetables
- Young plant propagation
- Vegetable transplants
- Hydroponic
Benefits
- Dries out more frequently 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 crop cycle
Certifications
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VeriFlora® is an agricultural sustainability certification and eco-labeling program recognized as the gold-standard in the floriculture and horticulture industries.
Publications
Active Ingredients
MYCORRHIZAE
- Improves fertilizer uptake; reduces fertilizer costs
- Increases the resistance of plant to stresses; reduces maintenance costs
- Optimizes results without changing growing practices
- Increased root mass, flower production, plant size, yield
- Improved water uptake and increased drought resistance

Advice from our specialist
Whether you require low moisture retention or prefer a high percentage of perlite, PRO-MIX HP is the choice of many growers for specialty crops, like poinsettias and flowering potted plants, or rooting cuttings. PRO-MIX HP provides the highest air porosity of all of the PRO-MIX blends with good moisture retention. During the winter months, many growers use this blend because of the low light intensity and short day length.
Training center
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Grower Profile: Ornamentales de Adjuntas
Ornamentales de Adjuntas in Puerto Rico offers a wide variety of poinsettias in different container sizes.
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PRO-MIX Growing Media Active Ingredient: MYCORRHIZAE
Horticulture Specialist Troy Buechel talks about one of the active ingredients contained in our PRO-MIX growing media: MYCORRHIZAE.
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Non-Living Plant Biostimulants: Can they benefit Your Crops? Part 1. Humic Substances
Biostimulants are becoming increasingly important in greenhouse and outdoor crop production. Many growers currently use living plant biostimulants, such as bacteria (e.g. Bacillus), fungi (e.g. mycorrhizae) and nematodes.
Ingredients
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SPHAGNUM PEAT MOSS (65-75%)
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Canadian Sphagnum peat moss is a natural, organic matter that comes from a peat bog. This primary resource is carefully harvested by vacuum harvesters. Peat moss comes in various fibrosity and levels of decomposition. Once carefully graded, peat moss assures that qualities of each grade are optimized for based on grower and uses for a final product reaching high quality requirements.
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PERLITE
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Perlite is an alumino-silicate ore of volcanic origin. The raw ore is crushed, graded and screened in various particle sizes. Perlite has a high total-porosity and improves drainage and air porosity.
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LIMESTONE
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Used to adjust pH to optimum range. Also a source of Calcium and Magnesium.
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WETTING AGENT
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A wetting agent is a substance that reduces the surface tension of water, allowing water to penetrate and uniformly wet growing media.
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MYCORRHIZAE - PTB297 TECHNOLOGY
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Mycorrhizae - PTB297 Technology is a Biological Growth Enhancer that increases the yield of flower, fruit and vegetable plants by extending the root system to acquire the most of available nutrients in the soil. Mycorrhizae also improve resistance to root diseases and stresses.
Documents and specifications
Code | Size (Regional availability may vary) | Units per pallet | Weight |
---|---|---|---|
20221RG | 2.2 cu ft Loose ** | 30 lb | |
** Sold at Lowes and Home Depot | |||
20281RG | 2.8 cu ft Loose | 57 | 25 - 35 lb |
20381RG | 3.8 cu ft Comp. | 30 | 60 - 75 lb |
20551RG | 55 cu ft Comp.* | 2 | 800 - 1050 lb |
20801RG | 80 cu ft Loose | 2 | 700 - 850 lb |
21351RG | 135 cu ft Comp. | 1 | 2200 - 2700 lb |
*West only |
20221RG | |
---|---|
Size (Regional availability may vary) | 2.2 cu ft Loose ** |
Units per pallet | |
Weight | 30 lb |
Size (Regional availability may vary) | ** Sold at Lowes and Home Depot |
Units per pallet | |
Weight |
20281RG | |
---|---|
Size (Regional availability may vary) | 2.8 cu ft Loose |
Units per pallet | 57 |
Weight | 25 - 35 lb |
20381RG | |
---|---|
Size (Regional availability may vary) | 3.8 cu ft Comp. |
Units per pallet | 30 |
Weight | 60 - 75 lb |
20551RG | |
---|---|
Size (Regional availability may vary) | 55 cu ft Comp.* |
Units per pallet | 2 |
Weight | 800 - 1050 lb |
20801RG | |
---|---|
Size (Regional availability may vary) | 80 cu ft Loose |
Units per pallet | 2 |
Weight | 700 - 850 lb |
21351RG | |
---|---|
Size (Regional availability may vary) | 135 cu ft Comp. |
Units per pallet | 1 |
Weight | 2200 - 2700 lb |
Size (Regional availability may vary) | *West only |
Units per pallet | |
Weight |