Depends on the circumstances, in a hot moisty room, it will occur faster then in a freezer.
And it also depends on what kind of fruit, some last longer then others, be more specific.
If it is properly stored and never exposed to enough moisture for mold to grow, it will never mold.
2days unrefrigerated
50000
5000 years
It would take a longer time to grow mold on an orange in the fridge than it would being left out in room temperature. Putting fruit in the fridge helps the fruit stay fresher for a long time period. I would think it would take a couple of weeks, in other words a long time for an orange to grow mold while in the fridge.
50,000 years
about 1 week
How long it takes for lettuce to grow mold depends upon the conditions it is stored in. If the lettuce is stored in humid or damp conditions, it will grow mold in a few days.
Any fruit tree can take a very long time. They can take up to 5 years to get established and start to grow fruit.
It depends on what kind of bread it is!!!
That's pretty gross. Google it.
24 hrs .