While there are many Druid Rings in Norrath, those listed below are available to druids for telelportation, provided they have done the Blessings of Growth quests for each ring. Non-Druids must also have visited the ring and obtained a Blessing of Growth to be teleported there.
Players have to harvest the bush in a druid ring and then talk to a portal trainer in order to receive the spell.
See one of these trainers to get started:
Sorcerers should see a Teleport Trainer.