Ultra Tech Medium Vermiculite
Best soil amendment for gardeners focused on seed starting and propagation.
This sterile mineral is the secret weapon for anyone struggling with thirsty soil or finicky seedlings. While it adds a step to your potting routine, the massive boost in aeration and moisture control makes it an essential insurance policy for healthier, more resilient root systems.
$51.78
at
Steve Regan Company
Who it's for
- Seed starters looking for high germination success rates
- Busy gardeners needing to reduce their watering frequency
- Indoor growers focused on healthy root development
Who should skip it
- Budget-conscious gardeners managing large-scale planting projects
- Gardeners seeking an all-in-one nutrient-rich soil solution
- Long-term planters requiring permanent soil structure
Performance breakdown
Moisture Retention
High-capacity mineral structure keeps roots hydrated during dry spells.
Soil Aeration
Coarse texture prevents compaction to ensure vital oxygen reaches root systems.
Nutrient Availability
Efficiently holds and releases essential minerals for consistent plant uptake.
Sterility Standards
Completely sterile composition eliminates risk of soil-borne pathogens or pests.
Propagation Efficacy
Provides the perfect stable environment for delicate cuttings and seedlings.
Hydroponic Versatility
Reliable performance in passive systems for soil-free growing applications.
Key Specs
Volume
4.0 cubic feet
Material
Horticultural vermiculite
Grade
V3
Nutrient Retention
Holds ammonium, potassium, calcium, and magnesium
Texture
Coarse
Intended Use
Seed Starting
Soil Type
Potting Mix
Drainage Level
Retains Moisture
Moisture Retention Level
High
Primary Amendment
Vermiculite
Know before you buy
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