I love the lag free server that disabling growth has created. However, even if we ignore the needs of healers, trees are essential to minecraft, and I suspect many players would prefer to spend as little time cultivating them as possible if they will not grow by themselves.
Currently, without growth on, bonemeal is our only option for renewable crops. If we want to keep this awesome no lag with no cap server, could there be some sort of government sponsored free/very cheap bonemeal supply? Perhaps 5 bonemeal is awarded once per day? Perhaps a few stacks of bonemeal are awarded to townships on a regular basis? Perhaps logs are awarded daily and we skip the grow process all together?
This method could also be used to combat mushroom spread being disabled, although I believe that is a much less serious problem.
Step 1. Wake up in strange land.
Step 2. Punch Trees.
Step 3. ???
Step 4. Profit
without trees, we are all fucked.
also: turning on leaf decay would be excellent, otherwise we will see floating forests everywhere.