PRO-MIX HP MYCORRHIZAE Soilless Potting Mix
Best high-drainage mix for gardeners wanting stronger, healthier root systems.
This is the gold standard for growers who tend to love their plants a little too much. By prioritizing aggressive drainage and aeration, it makes overwatering nearly impossible, though you’ll need to be more diligent about your feeding schedule since it holds less moisture than standard potting soils.
$52.99
at
Perris Hydroponics
More PRO-MIX HP options
Who it's for
- Plant parents seeking stronger root systems and better nutrient absorption
- Commercial growers needing predictable, consistent results every time
- Gardeners growing moisture-sensitive plants prone to root rot
Who should skip it
- Busy gardeners unable to maintain a frequent watering schedule
- Beginners looking for a low-maintenance, pre-fertilized soil option
- Indoor gardeners growing tall, top-heavy plants in lightweight pots
Performance breakdown
Drainage Efficiency
Coarse perlite structure ensures water flows through without waterlogging sensitive roots.
Root Development Support
Mycorrhizae inoculation actively expands root systems for superior nutrient uptake.
Aeration Quality
High porosity prevents soil compaction, keeping oxygen levels optimal for growth.
Disease Resistance
Beneficial microbes create a healthier rhizosphere, naturally suppressing common root pathogens.
Watering Flexibility
Low moisture retention makes it forgiving for growers prone to overwatering.
Nutrient Management
Requires active fertilization since the mix arrives without pre-added nutrients.
Key Specs
Soil Type
Potting Mix
Volume
3.8 cu.ft.
Volume
107.7 Quarts
Key Ingredients
Peat Moss, Perlite, Mycorrhizae
Primary Amendment
Mycorrhizae
Moisture Retention Level
Low
Drainage Level
Fast Draining
Aeration Level
High
Certification
VeriFlora Certified
Intended Use
Vegetables, Flowers
Know before you buy
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Ask Metto anything about the PRO-MIX HP MYCORRHIZAE Soilless Potting Mix before you decide.
