Incorporating good quality biochar like Kiwichar into your potting mix increases the abundance of soil microorganisms, soil nutrient retention and water storage, as well as carbon content.
It also is known to increase plants root depth by up to 40% making for a healthier, stronger plant. A good root system is vital to a plants survival.
 
Simply mix some Kiwichar with your potting mix before potting or sprinkle ontop of exsisting potted plants. As you water it will work its way down into the soil.
 
Kiwichar - 3L Bag