Collective Premium Cannabis Littleton is a recreational cannabis dispensary in Littleton, Massachusetts. We’re conveniently located off the Blue Star Memorial Highway (exit 80 on US-495) in Middlesex County, MA and offer a wide variety of premium cannabis products, including flower, pre-rolls, edibles, concentrates, and much more. Our knowledgeable staff is always available to answer questions and help customers find the right products for their needs. Open daily.