Time limit for druid ritual questline?

[A_Pepperoni_Lass]

So I'm wanting to explore the map, and I am getting into some tough encounters, so I'm having to long rest a lot.
Is there a time limit for me to finish this whole quest, find the lost druid, kill the goblin leader, etc. Before the druids finish their ritual?
Or is it one of those gaming moments of false urgency?

[M'igo Kazan]

It's false urgency, yes. The game is rather fond of that

[Jaggid Edje]

You can actually stop the ritual without doing any of the things you mention. (And without killing Kargha). Just as an FYI. It involves a very short trip from the grove and just a single battle (which is relatively difficult at level 3, the level you are likely to be if you do that immediately after visiting the grove).

That's what I've done on both of my playthroughs.

But no, there's no real urgency, just a false sense of urgency as already mentioned.