First lady Melania Trump opens White House gardens to all Americans

Americans lined up early in the morning to view the Trump White House gardens across the South Lawn. 

Previously scheduled for both Saturday and Sunday, the tours were rescheduled to Sunday due to "an abundance of caution and to ensure the safety of all within proximity to public demonstrations planned near the White House," according to a press release. 

Currently, there are 33 commemorative plantings.

"Since the 1870s, most presidents have planted a commemorative tree while they were in office," the National Park Service says. "The White House Gardens are constantly changing with the seasons and administrations."

Nicholas Clemens, director of communications at The Office of the First Lady, told Fox News Digital, "We are proud to continue the longstanding tradition of Spring Garden Tours by inviting the public to enjoy the beauty and history of the White House grounds."

The tour on Sunday also offered the last chance for the public to view the Southern magnolia tree said to have been planted by President Andrew Jackson.

The nation's seventh president served from 1829 to 1837. 

The Jackson tree was seen propped up with wires on Sunday to ensure the safety of both the building and the visitors. 

The White House partners with the Trust for the National Mall in raising private donations and recruiting volunteers for the tour.

Julie Moore, spokesperson for the Trust for the National Mall, told Fox News Digital that they're honored by the partnership and "help care for the iconic White House Gardens all year long."

See more pictures of the White House Spring Garden Tours from Fox News Digital, below. 

The garden tour is separate from the White House tour.

The south grounds of the White House will open again to the public for another weekend in the fall, as per usual arrangements.