How do I get to Bud the Wizard?

Hint 1 of 12:

He lives in a tower on the courtyard.

Hint 2 of 12:

The only way in is that doorway above the garden.

Hint 3 of 12:

Ever read Jack and The Beanstalk?

Hint 4 of 12:

You'll need a magic bean to reach the doorway.

Hint 5 of 12:

Did you deal with Giovanni yet?

Hint 6 of 12:

Clothing often has pockets.