In this event, you need to beat levels on your first try to collect free boosters. Beating more levels in a row means getting better boosters at the beginning of each level. When you fail at a level, you will have to start all over again.

All players who have reached level 19 can participate Garden Power event. 

The Garden Power event is designed to enhance player engagement by encouraging players to maintain consecutive wins, or “win streaks”. Players are rewarded with pre-level boosters in the next level if they complete the current level on their first attempt. The rewards scale with the length of the player’s win streak, incentivizing continued success.