Follow instructions on the pie dough package. With the top pie crust, use your leaf pie crust cut-out until all of the dough is used. Set aside.
In a large bowl, combine blackberries and apples. In a small bowl, combine brown sugar, cornstarch, cinnamon and nutmeg. Stir this into the fruit and toss to coat. Spoon into crust-lined pie plate and top with the leaf cut-outs.
Cover the pie with foil to prevent excessive browning and place in the oven. Bake for 50 minutes. Remove foil and bake for an additional 15-20 minutes or until golden brown.