TreeHouse Collective is a marijuana dispensary in central NE Portland. TreeHouse Collective is open to all adults 21+ as well as OMMP participants. Separate bud rooms for medical patients and recreational customers. Professional, knowledgeable staff loves to help the cannabis community, from novice to connoisseur. Located on Sandy Blvd at the head of Portland's "Green Mile," you will find a top shelf flower selection and unmatched variety of edibles and concentrates for OMMP.