As a livelihood starter why not assemble a flower growing kit? Then to generate interest and keep customers coming to your store. A modern approach to this would be to make online instructional videos.
This means people can come to your store and ask questions in person.
If there is no internet access in your area. You can still make videos and sell them offline. This using a simple Wifi transfer application from the smartphone or PC to the customers smartphone.
I assume something like this will keep customers coming for the flowers, the offline videos and the possibility for in person questions.