Prep your produce: Cube the watermelon and remove any black seeds. Rinse the greens. Peel the cucumber if it has a waxed skin.
Peel the ginger and kiwi.
Layer the blender: Start with watermelon and liquid at the bottom for easier blending. Add greens, cucumber, ginger, mint, and kiwi on top. If using, add avocado and yogurt last.
Blend until silky: Run on high for 30–60 seconds.
If it’s too thick, add a splash more liquid. For a colder, slushier texture, add ice and blend again.
Brighten and balance: Squeeze in the lime or lemon juice. Add a tiny pinch of salt to enhance the natural sweetness.
Blend for a few seconds to combine.
Taste and adjust: Want it sweeter? Add a couple more watermelon cubes or a small piece of ripe pear. Prefer more zing?
Add another slice of ginger or more citrus.
Serve immediately: Pour into a chilled glass and garnish with mint. Drink right away for the best flavor and nutrient retention.