Rootbound:
When your plants' roots have grown in your pot to all possible spaces.

It's roots are "bound" inside the small confinements of the pot.
One way to know if it's root bound is to look under the pot... are roots sticking out of the drainage holes? If yes, then it's probably root bound.

Pros: It's good for your plants... they can grow.
Cons: It's not good for your plants. They can't grow that much.

Reversed? Yeah, just place them in a bigger pot.

I hope this helps... BTW: Wait for input from more experienced members of these boards... I might be wrong.

-turtle420
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