Preheat oven to 425°. Line a baking sheet with aluminum foil.
Carefully cut ⅛-inch slits along the top of each potato, stopping ½ inch (1 cm) from the bottom. I find it helpful to place a chop stick on each side of the potato to avoid slicing the potatoes all the way through. Melt butter. Stir in garlic, thyme, rosemary, lemon juice, salt, and pepper.
Place potatoes onto the lined baking sheet; brush with seasoned butter and roast until the center of the potatoes are beginning to soften, about 30 minutes. Remove from oven, brush with more seasoned butter, and fan the wedges out slightly with a fork. Return to oven and bake until the potatoes are soft and tender in the center and crispy on the outside, 15–30 minutes. Serve hot, brushed with seasoned butter and extra chopped herbs.