Reuse Old Soil
Mix into depleted media before planting again
GreenGro Earthshine Biochar - Biochar Soil Amendment
Discount automatically applied at checkout. Samples excluded.
Ready to breathe new life into used soil? Inspired by the Amazon's ancient terra preta, Earthshine blends biochar with worm castings, glacial rock dust, and 5% humic acid, which may increase micronutrient uptake. It lets you revive and reuse spent potting soil. Top-dress at any stage, mix it into soilless media, or add it to compost tea.
Download here
GreenGro Earthshine Biochar - Biochar Soil Amendment
Sale price$9.99
Bring Old Soil Back to Life
Give your used soil a fresh start with Earthshine Biochar Blend, a soil amendment designed to complement your soil revitalization routine.
Multiple Ways to Use
Boost New Soil
Blend into fresh soil mixes
Compost Tea
Use in aerated tea routines
Top Dress
Apply around established plants
Transplant Support
Add to the transplant hole
Bulk Mixing
Blend into larger soil batches
How Biochar Supports Soil
Once incorporated, the biochar in Earthshine helps stabilize carbon in the root zone for the long term, while improving soil structure season after season.
Helps Hold Water
Helps Hold Nutrients
Porous Structure
Strengthens Soil Structure Over Time
Build for Living Soil Routines
FAQ
What is Earthshine Biochar Blend?
A fortified, 5-ingredient biochar blend (biochar, worm castings, soybean meal, glacial rock dust, and humic acid) that rebuilds soil structure, holds water and nutrients, and feeds microbial life, registered as a CDFA Organic Input Material.
How much should I use?
Rates vary by use:
- Reuse Old Soil — 1 lb per 4 cubic feet
- Boost New Soil — 1 lb per 6 cubic feet
- Compost Tea — 1–2 tbsp per 5 gallons
- Top Dress — 1 cup per 4'×4' area
- Transplant Support — 1 tbsp per 6-inch potting hole
- Bulk Mixing — 30 lbs per pallet of new soil or 2 cubic yards of used soil
Why does it smell fermented?
Earthshine is a biologically active product, so a mild wine- or yeast-like smell can develop over time as the ingredients break down. That's a normal sign of microbial activity, not a sign that it's gone bad.
Can I use it to refresh old, depleted soil?
Yes, mixing Earthshine into used soil, coco coir, or raised bed media is one of its main uses, restoring structure and microbial life for another growing cycle.
What's in it?
Biochar, worm castings, soybean meal, glacial rock dust, and humic acid.
Can I use it in compost tea?
Yes, it's designed to boost compost tea and mycorrhizae applications, not just as a soil mix-in.