Watering week 1-3

Hi there! Basically the soil needs to be wet around the root area. So you don't need to give that much during first weeks and if you wet the whole 20l bag most of the water will just evaporate in to the air 'cos the roots cant drink all of it. Maybe ~0.5l would be a good to start with or even less. If the soil feels dry after this ofc you can give more but just dont over do it. Perlite helps aerate the soil so overwatering is not so easy to do but vermiculite holds moisture so yuou dont need to add trhat much water.