In a large measuring cup, add the boiling water and pea flowers. Cover loosely with a lid or towel and steep for 5 minutes.
In a large saucepan, add the boiling water and hibiscus tea. Cover with lid and steep for 5 minutes. Strain or remove the hibiscus tea and add the sugar. Heat over low, stirring until all of the sugar is dissolved. Continue to cook on low for 3-5 minutes to thicken.
Add ice to a large pitcher and pour in the lemonade. Make sure ice is above the liquid line before slowly pouring in the butterfly pea tea.
Next, slowly pour in ½ cup of the hibiscus syrup and stir to combine. We like to leave this step for the end because the presentation is magical!