In a small bowl, whisk together 1/2 cup of the all-purpose flour, ice water, and vinegar until well blended. In a large bowl, combine remaining 1/4 cup all-purpose flour, whole wheat flour, confectioners' sugar and salt. Cut in shortening with 2 knives until mixture resembles coarse meal. Add vinegar mixture and toss with a fork until moist. Press dough into a disk and chill, covered tightly with plastic wrap, for 10 minutes.

Preheat the oven to 425°.

Cut off one-third of the dough and return remaining dough to the refrigerator. Place the dough third between 2 pieces of parchment paper. Roll the dough out 1/4-inch thick and remove the top layer of paper. Use a small flower-shaped cookie cutter to cut out flowers. Slide the parchment paper onto a baking sheet and bake for 10 minutes. Remove from oven and let cool on a wire rack. Set aside. Keep oven on.

On a lightly floured surface, roll out the remaining dough into a circle and press it into the bottom and sides of a 9-inch pie pan. Crimp the edges. With a fork, prick the bottom of the crust a few times. Set aside.

In a medium bowl, combine blueberries, granulated sugar, lemon juice, lemon zest and cornstarch. Mix gently until berries are evenly coated. Pour the filling into the pie crust.

Bake for 20 to 22 minutes, until crust is golden and filling just begins to bubble. Transfer to a wire rack to cool slightly. Top with the baked “flowers.”

Serve warm or at room temperature.