Herblore is a members-only skill; granted that Herbs are used in potion-making among other things, the answer to your question would be a definite yes. Free players cannot use herbs and as such cannot make potions.
you cant
You can add herbs or ingredient in it to make potions. -Adding stuff to potion is only available in members-
Runescape 1 is also known as Runescape classic. It's members only now, and only members who made a RSC account before August 2005 can go on it anymore.
In the desert. For members only.
Yes, Castle Wars is a members-only activity.
You can kill chaos druids to collect herbs.
No, the sawmill is a members only option.
Sorry to say, I believe it is members only.
Yes.
Yes.
Yes P2P only.
Bass is a members only fish, only members can fish it.