The following are the requirements after accepting this quest. Bring the Sadhu 2 Pumpkins, 2 Roses, 4 Saplings (of 2 different types), 2 Dandelions, and 2 Seeds.
The reward for completing this quest is 128 reputation points towards the village you started the Creation Quest in.
The Sadhu tells the player the following at the Accept/Reject screen.
Your first task will be simple. I need to assemble a collection of the main vegetation types to be found around here. I would go myself, but I have vowed to stay within reach of this tree for the next three full moons, so you will have to perform this task.
I will meditate in your absence.
After completing the quest, he tells the player to rest a while before starting the next one: Exploring the Forest