• Starbucks announced on Monday it would be laying off 1,100 corporate employees.
• The coffee chain also said it would be removing 13 menu items on March 4.
• Among the menu items disappearing are nine of the chain's Frappuccino drinks.

Starbucks is shaking up its menu, trimming down offerings as part of a wave of bigger changes at the company.

A Starbucks representative told Business Insider the chain is removing several items from its menu that are less popular with guests, can be difficult or time-consuming to make, or are similar to other items on the menu.

"As part of our plan to get back to Starbucks, we're simplifying our menu to focus on fewer, more popular items, executed with excellence," the chain told Business Insider in an email. "This will make way for innovation, help reduce wait times, improve quality and consistency, and align with our core identity as a coffee company."

Starbucks plans to reduce its menu by roughly 30% by September.

The changes will make room for new menu items, as well as Starbucks' soon-to-be-released spring menu, which includes its lavender beverages lineup and a new drink, the Iced Cherry Chai.

A majority of the cut menu items include its Frappuccino offerings, as well as its matcha lemonade and Honey Almondmilk Flat White.

The changes come amid other shakeups at the company as it seeks to turn around declining sales. On Monday, Brian Niccol, who joined Starbucks as its CEO in September, announced the company would lay off 1,100 corporate employees this week.

"We are simplifying our structure, removing layers and duplication and creating smaller, more nimble teams," Niccol said in a letter sent to employees. "Our intent is to operate more efficiently, increase accountability, reduce complexity and drive better integration."

The company said that employees affected by the layoffs will be notified by midday Tuesday. Starbucks store employees will not be affected by the layoffs.