The move is viewed by some as an attempt by Johnson to push through a no-deal Brexit.
During the speech, Queen Elizabeth reads a speech prepared by the government, setting out a legislative agenda for the coming year.
A Queen’s Speech on Oct. 14 would effectively shut down parliament from mid-September for around a month and reduces the time in which lawmakers could try to block a no-deal Brexit.
Johnson has vowed to take the UK out of the European Union with or without a deal by October 31.
While suspending parliament ahead of a Queen’s Speech is the historical norm in Britain, the decision to limit parliamentary scrutiny weeks before the country’s most contentious policy decision in decades prompted an immediate outcry.
“This action is an utterly scandalous affront to our democracy,” Tom Watson, the deputy leader of the Labour Party, said on Twitter. “We cannot let this happen.”
Nicola Sturgeon, the first minister of Scotland, said Wednesday would go down as a “dark one indeed for UK democracy” unless politicians join forces next week to stop the prime minister.
On Tuesday, lawmakers opposed to a no-deal Brexit met to discuss ways they could use parliamentary procedure to force Johnson to seek a delay to Brexit.
Parliament returns from its summer break on Sept. 3 and had been expected to sit for two weeks before breaking up again to allow political parties to hold their annual conferences. Typically it begins sitting again in early October.