The big problem I've had isn't even the micromanaging the garden. Whatever resets the bugged sim happens after the fruit is harvested, but before the plant is reset to Mature - it'll still say "Harvest" even though there's no longer any produce and no "Harvest" interaction on the plant, and it stays that way. As far as I can tell, if a sim with the bug harvests a plant, it can never be harvested again.