Marietta Edgecombe is interested in an underwater plant growing in the caves beneath Hogwarts, and has asked you to retrieve it. Don’t be too hasty! You might need to find a way to hold your breath before you dive into the water.
Submerged Shrub is a side quest given by Marietta Edgecombe in the caves under Hogwarts. The quest involves diving in the water to find an underwater herb.
To find Mariettta, exit The Slytherin Common Room and climb the stairs, crossing the hall to the door immediately in front of you. You will enter the caves. Walk slightly right and you will quickly find Marietta (x=803, y=16, z=305).
Steps[]
- Collect the underwater plant
- Return to Marietta Edgecombe
Conversation[]
Marietta: Hello, there. Perhaps you can help me ...
You see, there is an underwater plant growing here in the caves beneath Hogwarts, that I'm interested in for my Herbology class.
Only problem is, I can't swim.
Maybe you could get it for me?
I'll be sure to give you something in return.
Player: I'll do it.
Marietta: Thank you!
The underwater plant is bright blue, so it should easy enough to spot.
Just return to me here when you have it.
[——— After completion ———]
Marietta: Oh you have got it! Wonderful.
This is so exciting - here, take this for your troubles.
How to Complete the Task[]
You will require Essence of Gillyweed potions to swim safely to the herb, preferably two or more. These can be found around the map or made after completing the quest Potions. The water is filled with Grindylows, so offensive spells, especially Bombarda Maxima, will be helpful. The compass will guide you to the shrub, after which you can continue down the path to a seperate pool (it is also possible to enter via this pool for a faster completion time). Return to Marietta for your reward.