No, the growing medium basically lasts forever! However, if you have grown something and want to start over with a new seed, it is recommended to get new medium, as the roots will be very entangled in it. We will provide this on our future web shop, or you could also find it in any gardening store.
It really depends. Some power banks will shut down when the consumption is less than certain threshold. In other words, we can not guarantee that it works with something different as the supplied power adapter.
This growing method is optimal for herbs and compact varieties of plants. We have tried out chili, basil, mint, small tomatoes, and many other type of herbs. But for sure, you can grow much more than that.
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