I'm trying to grow chili plants in my dorm room. So far I'm just starting, so I have just four small pots (until they grow larger and I have to give them a bigger home). I'm usually away for only a few days, but especially in summer my absence could be even a few weeks. The biggest problem so far is keeping the plants hydrated during the time that I'm absent from my university city.
One of the solutions that was suggested to me was Tropf Blumat system. Are there other ways of keeping them hydrated?