Heat your grill to medium-high.
In a small bowl, whisk together the olive oil, lemon juice, salt, pepper, garlic, and Italian seasoning until well combined.
Cut zucchini into spears.
Add the zucchini to a large bowl and pour the marinade over it. Turn to coat evenly .
Brush grates of grill with olive oil.
Place zucchini on grill and cook for 3-4 minutes per side, or until tender.
Remove from the grill and sprinkle with parlsey, if using. Season to taste with salt and pepper. Serve with lemon wedges.