It's a challenge of bureaucracy, to find the right people, and get them in the right place at the right time, but if there's one thing his nation has shown, it's how to be prepared for anything. Experts are brought in to aid in the ancient ritual, which is dutifully studied and recorded. The effects are almost immediately apparent, as the very land around the city seems to thrum with life - and indoor plants suddenly spring into health. It would take some time to see what the longer-term effects would be, and it took a fair amount of time to perform, so it might be impractical to perform everywhere in the kingdom, but it could certainly be majorly beneficial, if used correctly.