This method can help deter pests and promote growth, but it won’t work for every plant The problem Enter any deep plant nerd space such as the Reddit threads, and you’ll find Leca. Hardcore followers cite positives to growing plants in these clay balls, such as fewer pests and watering mistakes, and faster growth. Switching from soil to semi-hydro is tempting, but does it actually make life easier? The hack Leca stands for lightweight expanded clay aggregate. Unlike soil, it is inert and doesn’t feed the plant. Its job is to hold moisture and air around the roots, while you provide everything else via a diluted fertiliser solution. Water sits at the bottom of the pot, and the clay wicks it upwards, keeping the root zone evenly damp. Continue reading...