The governing Tories had said they wouldn't run a candidate against Brian Gallant, who was named Liberal leader last October and does not hold a seat in the legislature.
But on Friday, the Progressive Conservative riding association in Kent chose March 20 as its date to name a candidate for the byelection.
The seat officially became vacant Monday, about a month after former Liberal premier Shawn Graham announced his resignation as the member for Kent over a conflict of interest scandal.
Graham was chastised in a report by the province's conflict of interest commissioner over his involvement in a cabinet decision to provide financial help to a construction company that had ties to his father.
A Tory official says the party has decided to run a candidate in Kent because of the circumstances surrounding Graham's resignation from politics.
No date has been chosen for the byelection.
(News 88.9, The Canadian Press)