Pro-Mix HP Growing Medium
Best professional grade substrate for serious indoor and outdoor container gardeners.
A high-porosity, peat-based substrate designed for maximum drainage and aeration. It excels in environments where root health is critical, using mycorrhizae to boost stress resistance and growth in water-sensitive or low-light crops.
$14.95
at
Greenergardensmn
More PRO-MIX HP options
Who it's for
- Indoor gardeners growing moisture-sensitive species like succulents or orchids
- Organic growers seeking stronger root development and better plant health
- Seed starters requiring a reliable and disease-free germination environment
Who should skip it
- Busy plant owners who cannot commit to a daily watering schedule
- Casual hobbyists looking for a simple 'just add water' soil solution
- Forgetful gardeners who struggle with maintaining consistent substrate moisture levels
Performance breakdown
Drainage Efficiency
High-porosity blend prevents root rot in even the most sensitive plants.
Root Development
Mycorrhizal fungi integration significantly accelerates root system colonization and overall health.
Aeration Quality
Perlite-heavy composition ensures consistent oxygen flow to the root zone.
Moisture Consistency
Wetting agent ensures uniform hydration, reducing dry pockets during watering cycles.
Professional Reliability
Consistent, sterile substrate minimizes variables for high-stakes commercial cultivation.
Ease of Handling
Large compressed bale requires significant effort to break down and hydrate.
Key Specs
Volume
3.8 cubic feet
Ingredients
Canadian Sphagnum peat moss, Perlite, Dolomitic and Calcitic limestone, Wetting Agent, Mycorrhizae
Drainage Level
High
Aeration Level
High
Beneficial Microbes Added
Yes
Disease Resistance Properties
Yes
Intended Use
Water sensitive crops, rooting cuttings, low-light growing conditions
Know before you buy
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Ask Metto anything about the Pro-Mix HP Growing Medium before you decide.