Jiffy Soilless Mix
Best lightweight medium for starting delicate indoor seeds and cuttings.
A reliable, fine-textured medium that simplifies the propagation process. It provides the essential balance of moisture and aeration needed to get seeds and cuttings off to a strong start without the guesswork.
$34.95
at
Harris Seeds
Who it's for
- Gardeners seeking a disease-free environment for sensitive young plants
- Indoor growers prioritizing healthy root expansion and oxygen flow
- Hobbyists wanting predictable results across every seed starting tray
Who should skip it
- Beginners who prefer a mix with pre-blended organic nutrients
- Busy plant owners who might miss a watering schedule
- Eco-conscious gardeners looking for renewable coconut coir alternatives
Performance breakdown
Germination Success Rate
The fine-textured blend provides an ideal environment for rapid sprouting.
Moisture Retention
Sphagnum peat holds water effectively without becoming waterlogged or heavy.
Root Aeration
Vermiculite content ensures roots get the oxygen needed for vigorous growth.
pH Stability
Consistent acidity levels prevent nutrient lockout during critical early stages.
Texture Consistency
Uniform particle size eliminates clumps that can hinder delicate root development.
Ease of Handling
Lightweight composition makes filling trays and pots effortless for growers.
Key Specs
Volume
2.8 cubic feet
pH Level
5.5-6.2
Key Ingredients
Canadian sphagnum peat, Vermiculite
Dry Bulk Density
8-10 lbs/cu ft
Intended Use
Seed starting, cutting propagation, transplanting
Soil Type
Soilless mix
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