1891 Victorian vegetable garden at Mount Vernon, George Washington’s house. Between picking the last of the fall harvest and planting your first seeds this spring, what’s a gardener to do? The answer comes not outside but online. Mother Earth News online Vegetable Garden Planner helps users create virtual customized kitchen garden plans based on their local climate, desired crops and rotations within the garden. Knowing the best times to plant each crop is one of the trickiest aspects of food gardening. The Planner first determines someone’s local average spring and fall frost date by matching that user’s zip code to data from the nearest of almost 5,000 weather stations in the United States and Canada.