Place the redbud flowers in a heatproof jar or container.
Pour boiling water over the redbud flowers.
Let cool until the jar/container is comfortable enough to handle, then cover and move to the refrigerator.
Infuse the redbuds for 12 hours.
Remove from the refrigerator and strain. The redbud tea might look very pale and unpromising at this point - that's okay!
Squeeze the juice of three lemons, then add the lemon juice to the redbud tea.
Stir well. The redbud tea should brighten up in color as soon as the lemon juice is added.
Add the sugar or your sweetener of choice. Stir well then taste test. If needed, add more sweetener until your lemonade tastes just right for you.
Pour over ice and enjoy your tangy and naturally pink lemonade!