Root poking through drainage hole

So one of my plants has a root growing out one of the pots drainage holes about 2-3 inches out.

Its 26 days old been flowering for 4 days.

Started off in 2 litre pots and at day 16 i transplanted to its final home of 5.5 litred as im cfl so looking to keep it smallish.

Should i worry about the root poking out?

Nope, it'll prune itself. No worries.

It will prune itself but when that happens i just transplant into a bigger pot.I would like my plant to grow as big as she can not keep her restricted because her roots cant grow no more..But thats me.Im sure it will be fine or you can do root pruning.There are a couple threads on here that show how you can do it..

sterilize some scissors and cut it off

Ok thanks, only reason I'm keeping them in 5.5 litre pots is cfls and limited room. Only vegd for 3wks too.