SunGro Horticulture Coir
Best organic growing medium for sustainable seed starting and container gardening
A professional-grade, coir-based medium designed to give plants a head start with added mycorrhizae and starter nutrients. It is an excellent, OMRI-listed choice for those who want a reliable, organic-certified foundation for container and raised-bed gardening.
$8.95
at
HTG Supply / SimplyHydro (HTG Supply network)
More Black Gold options
Who it's for
- Gardeners in dry climates needing consistent soil moisture levels
- Organic purists growing edible crops for their families
- Eco-conscious planters looking to reduce their environmental footprint
Who should skip it
- Low-maintenance growers who prefer set-it-and-forget-it soil mixes
- Hobbyists growing salt-sensitive tropicals or delicate seedlings
- Container gardeners seeking permanent, long-term structural stability
Performance breakdown
Root Development Support
Endomycorrhizae and silicon additives create an ideal environment for vigorous root systems.
Drainage Efficiency
The coir and perlite blend prevents waterlogging while maintaining necessary moisture retention.
Nutrient Availability
Starter fertilizer provides an immediate boost for seedlings and young transplants.
Organic Integrity
OMRI listing ensures strict compliance for certified organic gardening practices.
Versatility
Performs reliably across indoor containers, raised beds, and outdoor hanging baskets.
Ease of Handling
The 35-pound bag is substantial but manageable for most home gardeners.
Key Specs
Weight
35 lbs
Dimensions
22 x 14 x 17 inches
Volume
2 cu. ft.
OMRI Listed
Yes
Pre-fertilized
Yes
Beneficial Microbes Added
Yes
Know before you buy
Still have a question?
Ask Metto anything about the SunGro Horticulture Coir before you decide.