Bumble Berry Pie Smoothie

2 C filtered water
1 C rhubarb, cut up
1 C frozen raspberries
1 C frozen blueberries
½ apple
½ pear
1 big handful of spinach or red swiss chard
Optional: 1 tsp.+ maple syrup, for sweetening

Place all ingredients into a high powered blender and blend until smooth. Add additional water if the mixture is too thick.