It’s not easy being Mrs. Green’s.

Just a few weeks after opening a new outpost in the West Village, the upscale, organic grocer has managed to put off its left-leaning customer base while giving union organizers added ammunition.

The grocer, in an apparent effort to gauge residents’ attitudes toward unions, asked whether it was “important” to shop at stores that employ union members, said a resident who participated in a phone survey Mrs. Green’s conducted a month ago.

“The West Village is pretty liberal,” said the resident, who did not want to be named. “The survey started out asking questions about the food options in the neighborhood and then veered towards unions.”

The move backfired when a number of residents ratted out Mrs. Green’s to the local United Food and Commercial Workers International.

The union, which has been picketing outside the store since it opened, soon started handing out leaflets asking, “Why is Mrs. Green’s calling the community, asking what they think about unions?”

“Mrs. Green’s has broken the law and we are trying to inform the community and inform the workers,” said Aly Waddy, director of organizing for Local 1500.

With 18 stores, mostly in the tri-state area, and aspirations to open more, Mrs. Green’s has been locked in a three-year battle with the UFCW, which succeeded last year in bringing NLRB charges against the grocer over the firing of eight employees involved in organizing at its Mount Kisco, NY, store. The grocer settled the dispute by agreeing to rehire the workers.

Mrs. Green’s says it pays its workers as much as $17 an hour — more than competitors — and that the West Village location is its highest volume store.

“This community outreach gives the West Village another opportunity to share their ideas and help us serve them better,” said Pat Brown, chief executive of Natural Markets Food Group, the privately held Canadian company that owns Mrs. Green’s.