On the note on the desk, in the living chambers, there is a list of available upgrades for Skyhold. The first one is the garden upgrade. After you gather all of the necessary ingredients, go to the quartermaster and complete the quest.
- 1 Logging Stand
- 30 Elfroot
- 30 Spindleweed
- 30 Blood Lotus
Then, go to the garden (M12,13) and pick the structure that you want to craft. There are the Chantry garden, and the herb garden to choose from. The selection of the former allows you to receive temple donations and unlocks the Eyes of the Maker operation, and you also receive a standard. In the case of the latter, you will be able to grow more plants in your garden but you receive no rewards (3 additional pots in the garden).
Rewards for completing the quest:
- Operation: Eyes of the Maker
- A Standard