Can I add stuff to the reservoir to change the flavour of my bud?

Below are the two processes in which plant roots select and deliver only
minerals.

1. cell membrane of endodermis provides for selective absorption:
2. active transport proteins move minerals against concentration gradient
from water into cytoplasm


There are many people who strongly believe that they can change the flavour of
their buds and there are also companies who sell so called products, but every
Department of Biological Sciences, are satisfied that wanted flavourings are not
absorbed through roots.