Although most of the vegetables have been harvested in the White House Kitchen Garden, there will be a fall planting of cukes and radishes. Also, the White House may plant beets, turnips, lettuce, collards, and leeks, although that has not been confirmed.
What has been confirmed is that the Gardens will be open to the public for two days this October. From the White House Website:
The White House Gardens and Grounds Tours will be held from 10:00 a.m. to 4:00 p.m. on Saturday, October 17th, and from 10:00 a.m. to 3:00 p.m. on Sunday, October 18th, 2009.Visitors to the gardens will be able to view the Jacqueline Kennedy Garden, Rose Garden, Children's Garden and the South Lawn of the White House.
The Kitchen Garden, a new addition to the South Lawn, will be viewable from a distance along the tour route. There will be a visual explanation to help educate tourists on the elements of the garden.