At the Very Least it will be a money source for them. All of a sudden you will need to have paid inspections, permits, paperwork fees, taxes hiked to pay for Garden Wardens, specialty fertilizers, water treatments, etc. They will limit setbacks, sizes, "invasive" species (and fines). If you overgrow, they will confiscate. Heaven forbid you cross pollinate with your neighbor.

Basically, just imagine all the worst case scenarios.. that.