Yeah, the new berry system doesn't exactly match real-world shrub cultivation hardly at all. I hate to be like "you should do it completely differently" but there are other mechanics you could have used to prevent transplanting an entire bush farm willy-nilly. For example, berry bushes could act similar to trees, where new ones are small and produce little fruit, but grow to a maximum output within a number of years (say, 5). The model need not exceed one block. You could keep the fertilizer boosting mechanic and use it to instead increase the chances that a newly planted bush survives. (Say, 20% without, 50% with.) These mechanics would really slow down new bush farms without making them require long-term maintenance. Additionally you could require pruning at the end-stage for growth in order to get/keep maximum output. Depending on how much you wanted to incentivize/require maintenance you could adjust the end-stage penalty for not pruning every year.