Patriot Care, which opened Boston's first medical dispensary at 21 Milk St., is looking for input on possible plans to add recreational marijuana offerings, even though it promised residents and city officials that's not something it wanted to do when it won approval for the dispensary in 2015.

The company, a subsidiary of a subsidiary of Columbia Care, holds an "outreach hearing" on the idea at 6 p.m. on March 28 in the Metro Meeting Center on the fourth floor of 101 Federal St. downtown.

Members of the public are encouraged to attend to hear the presentation of the applicant and those in attendance shall be permitted to ask questions related to their co-location of an adult use marijuana establishment at this location.

Patriot Care today declined comment, referring a reporter to the state Department of Public Health, which does not regulate recreational marijuana facilities. The state Cannabis Control Commission only recently finalized its regulations for pot shops, and says it is not taking applications from companies that already run dispensaries until April 2.

Patriot Care filed a hearing notice with the Boston City Clerk's office earlier this month; it was posted on March 14.

At the time Patriot Care was applying for city zoning permission in 2015, recreational marijuana sales were still illegal, but city officials had begun planning for possible passage of a referendum legalizing sales in the 2016 elections. Voters approved the measure, which created a commission to oversee licensing and sales.