You will unlock the Enchanted Lotus when you reach XP level 10. Do daily quests to collect Magical Dew and revive the Enchanted Lotus.
You get Magical Dew and energy as a reward when you complete daily tasks. The list of tasks updates daily.
You should collect magical dew to revive the Enchanted Lotus.
You will get the reward when the Enchanted Lotus is revived.
You can also get the items of the Lotus collection as a reward.