Zest and juice the orange into a large mixing bowl. Add maple syrup and cinnamon, whisk until smooth.

Add grapes and blackberries to the dressing. Dice apples and add last. Toss to coat.

Toast pecans in a skillet over medium heat until golden and fragrant, then cool before adding to salad.

Fold toasted pecans into the salad before serving or store covered in refrigerator.