It's easy enough to find out.

First, poke your finger down from the top.
Do you feel dirt, or roots?

Next, look at the drainage holes.
Any escapees?
No can tell?

Let 'er dry out a li'l bit, lay the bucket on it's side and roll it back n forth a couple times.
That should loosen it.
Then put down a plastic bag and gently pull on the stalk, to slide the rootball out for a look.
If you see solid roots, it's time.

Looks like you have enough head room to "stack" it.
When they are tall, but not wide, they respond to stacking very well.
Drill a few 1" holes in the bottom of the bucket and set it on top of another bucket filled with fresh medium.
No mess, no stress.

Hope you sexed it before you started, because "it look a like a man" to me.
I'm just sayin'...

Aloha,
Weezard
Weezard Reviewed by Weezard on . 5gal bucket 6' tall Hi all, not new to growing but I have an indoor grow with a plant that took off growing on me and i just topped it. It now stands 6'3.... And I didn't think of root space until now. Is a 5gal bucket allowing enough root space for the entire grow?if not shud I transplant? How long do the roots grow? Heres some pics. Any feedback greatly appreciatrd! Rating: 5