Here's another of my ideas for farming..
Instead of having a meter like a timer.. how about having a water meter? The meter could be based on like 10's.. the max the meter could be is 100.. and like every 30 seconds the meter goes down 10. When the meter reaches 0 the tree dies..
For every 10 times you water, the meter goes up 10. This way, the plant can be attended to long enough to keep it alive and still be able to water more plants.
Say for example, the tree gets down to 20 percent.. then the player waters it like 30 times and it raises to 50 percent. Then they can go water the other trees until that tree gets low again.. This way you have resting periods when you decide to have them, but if you wait too long your tree will eventually die.. But at least it gives you a bit of time to play with.
