Tru Greenthumb

Tru Greenthumb is a licensed recreational cannabis dispensary at 1254 Mt Saint Helens Way NE St, Castle Rock, WA 98611, in Cowlitz County. It holds an active retail license (#445850) from the Washington State Liquor and Cannabis Board (WSLCB). It is one of Washington’s medically endorsed stores: patients registered in the Department of Health database can buy without sales tax, skip the 37% excise tax on DOH-compliant products, and purchase up to three times the adult-use limits.
Customers must be 21+ with a valid government ID (18+ with a medical card where medical sales apply). Call ahead or check the store’s menu for current hours, deals and stock.

See all dispensaries in Castle Rock, WA → Local guide, purchase limits, taxes and every licensed store in town.