Former first lady Laura Bush talks with landscape architect Herb Sweeney (right) and Mark Langdale, president of the George W. Bush Foundation, during a tour of the Texas interpretation of the White House Rose Garden at the George W. Bush Presidential Center in Dallas, which will open in late April. (Associated Press)

Former first lady Laura Bush talks with landscape architect Herb Sweeney (right) and Mark Langdale, president of the George W. Bush Foundation, during a tour of the Texas interpretation of the White House Rose Garden at the George W. Bush Presidential Center in Dallas, which will open in late April. (Associated Press)