To make room on your farm, you must clear weeds, trees, and other rubble. Tap on the item you want to remove.
Then, tap on the Farmhand who will carry out the task.
The rewards and the amount of time it will take to complete the task will be shown. You will also see the materials needed for the task.
After completing the task, tap on the reward to claim it.
Related posts:
FarmVille 3: How do I cook and craft?
FarmVille 3: How do I use the Building and Decor Shops?
FarmVille 3: What is Happiness?
FarmVille 3: What is the Order Board?
FarmVille 3: What is the Market Stand?
FarmVille 3: How do I add neighbors?
FarmVille 3: What are Decoration Coins and how do I earn more?
FarmVille 3: What are Achievements?
FarmVille 3: How does the Water Well work?
FarmVille 3: How do I use the Barn Storage?