Video narration
Is charcoal really useless in a garden? Think of a kitchen sponge: tiny spaces hold water and dissolved nutrients. Biochar starts with plant material heated with very little oxygen, leaving a porous, carbon-rich material. Here's the turn: it isn't a dead lump. Its pores can hold water and nutrients in soil, keeping them available around plant roots. There's another benefit. Much of its carbon is stable, meaning it breaks down relatively slowly, so carbon can stay in the ground for a long time. But this is not magic. Results depend on the material, soil, and preparation. Fresh biochar may need mixing with compost or nutrients first, or it can briefly interfere with nutrient availability. So, is charcoal useless? No-biochar can hold water and nutrients while storing carbon, but it's a soil helper, not a replacement for fertilizer or good soil care.