How to get and use coins?

Coins are an in-game currency. You can use them to:

You can get coins:

as a reward for beating match-3 levels
as a reward for completing game days
as a reward for restoring areas in the garden
from in-game characters as a token of their gratitude for your help or for other achievements
as random finds you come across in the garden as you're restoring it
for helping your team members
for inviting friends
for beating mini-games
as in-game purchases available for real money