Rinse the chicken, inside and out, in a gentle stream of water. Pat it dry, then truss it with 100% cotton cooking twine.. Place the trussed chicken in a baking dish, and arrange the potatoes, garlic and lemons around the chicken.
Brush the chicken with olive oil, and sprinkle it generously with sea salt and chopped savory. Drizzle any remaining olive oil over the potatoes, lemon and garlic.
Roast, uncovered, at 275 F for 2 hours, increase the oven temperature to 375 F and continue roasting a further 45 minutes or until the skin of the chicken crisps and turns brown, and its juices run clear. Allow the chicken to rest for 10 minutes before slicing and serving.
Notes
If you cannot find savory, substitute fresh thyme.