Brunnings Horticultural Charcoal 5L

Pots and terrariums without a drainage hole can turn sour and smelly as water sits in the bottom. A layer of horticultural charcoal fixes that. Brunnings Horticultural Charcoal is a chunky, lightweight carbon that keeps the growing environment fresh and sweet.

Add it to the base of pots for drainage, or work it through the mix to keep it open and help hold moisture. In terrariums and closed pots it absorbs odours and helps keep harmful bacteria in check, so the soil doesn't go off.

It's also handy in aquariums to help keep the water clear.

Uses across pots, terrariums and aquariums are in the tabs below.