
Preheat oven to 350 degrees. Spray the cast iron with cooking spray. Cube the peaches and set aside.
Add the flour, sugar, cinnamon, cloves, and cardamom to a medium mixing bowl and stir to evenly combine. Add the blueberries, peaches, and agave nectar to the bowl. Stir until all the fruit is coated. Spread the fruit mixture evenly across the bottom of the cast iron.
In a separate smaller bowl, combine the oats, pecans, salt, flour, agave nectar, and coconut oil. Spread the crumble over top of the fruit mixture.
Bake for 55 minutes to an hour until the crumble is golden brown. Serve with ice cream.