Preheat the oven to 325°F (165°C).
Prepare the turkey by removing the giblets and patting it dry.
Mix softened butter, salt, pepper, garlic powder, and thyme in a bowl.
Rub the butter mixture all over the turkey, including under the skin.
Stuff the cavity of the turkey with lemon quarters and fresh herbs.
Place the turkey on a rack in a roasting pan.
Roast in the preheated oven, basting every 30 minutes.
Cook until the internal temperature reaches 165°F (74°C) in the thickest part.
Let the turkey rest for 20 minutes before carving.
