The inauguration ceremony for the Court Gardener's position isn't difficult; it merely requires one to create an art piece that satisfies the "Deity".
However, the hardware requirement for the 2-tier Gardener's profession, a long list of occupation prerequisites, is decidedly exaggerated.
Lu Ping'an asked about it. This requirement includes reaching an extraordinarily high level in the "Gardener" and "Scholar" professions, possessing spatial ability, and a certain level of artistic skill. If one had to start from scratch, it would take someone of normal talent at least ten years. It was like the hardware requirement of a third-tier profession.
A typical 2-tier profession only needs the accumulation and foundation of a single profession. What the Court Gardener needs is the accumulation of "three professions".