Coir's cation-exchange sites naturally hold sodium and potassium and can strip calcium and magnesium from your feed early in the crop. Buffering pre-loads those sites with Ca/Mg so your nutrition stays on target from day one.
Why buffer
Without buffering, fresh coir can lock up Ca and Mg during the critical establishment weeks, throwing off your feed. Buffered coir hands that control back to the grower.
- Prevents early Ca/Mg lock-up
- Stable nutrition from the start
- Essential for hydroponic & high-value crops
When unbuffered is fine
For soil mixing, composting or applications where you'll correct nutrition anyway, unbuffered coir can be the more economical choice.
How we supply it
We supply both. Buffered grades are charged with calcium and magnesium and EC/pH tested, with a Certificate of Analysis on every batch.