How to care for a little cactus?
Since a cactus has to be kept mainly dry, the soil may harden, so that not much water will seep in when you water it and will just run through. It is therefore recommended that – instead of watering it with a watering can – you place the cactus-pot in a water-tight box or bowl and fill the box/bowl with water just so high that the water level reaches the top of the soil. Wait for a few minutes, then take the cactus-pot out and place it somewhere were the excess water can freely drip out. Usually, you would do this once a month during summer, but if it is really hot and really sunny (or, if the pot is placed above a radiator, and thus subject to a lot of extremely dry air), you might have to do it twice a month. Just remember that a cactus can cope better with too little water than with too much. In winter (Nov to Feb, roughly) you should put the cactus in a sunny but cool place (10-14°C) and not water it at all. If the place you choose is not really cool, but a bit warmer than 14°C, yo