Biochar can be very useful, but it is often oversold.
Its main value is usually not as a fertiliser. It acts more like a long-lived habitat for microbes and a sponge-like structure that can help hold nutrients and moisture when used well.
A few basics:
- **Crush it to a sensible size**
- **Charge it first** by soaking or blending it with compost, urine, worm juice, manure tea, or finished compost
- **Apply modestly** and observe the response
- **Use it as part of a system**, not as a substitute for compost, mulch, minerals, and living roots
Fresh uncharged char can sometimes tie up nutrients temporarily. Treated properly, it can become a useful long-term soil amendment — especially in weathered or leached soils.
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