How do I defeat Jarlath?

Hint 1 of 5:

Remember the profile you found on him in Melkior's diary?

Hint 2 of 5:

It said Jarlath was allergic to flowers.

Hint 3 of 5:

Use the flower from the bag on Jarlath.

Hint 4 of 5:

Note: If you didn't have the flower you need to go back to before you saved
Maximin.