If making popsicles, use 6 cups watermelon, 1/4 cup lemon juice, 2 tbs rosemary, 3-6 tbs honey or sugar (if using). In a blender, blend the watermelon, lemon juice, rosemary, and sugar (if using) until mostly smooth. Strain through a fine-mesh sieve into a pitcher. Pour the mixture among 6 popsicle molds or Dixie Cups. Reserve 1 cup of the watermelon juice. Freeze 2 hours or overnight, chill the reserved watermelon juice to use for blending