In a medium pot, bring four qt of water to boil. Put artichoke, pandan leaves, lo han guo, rhizoma emperatate, sugar cane, corn silk, and cilantro in a pot and simmer for 20 minutes.
Bloom dried chrysanthemum in 2 cups hot water and set aside for later use.
After 20 minutes, add chrysanthemum and simmer for another 15 minutes, then turn off the heat.
Let the mixture steep for 15 minutes. Then carefully strain the tea through a big fine sieve, and discard all the ingredients.
Serve this herbal tea with ice. Add dried longan, mint leaves, and berries as garnish if desired. Enjoy!