I can see from the Google map of the house five years ago that people were parking their cars in this part of the yard. There is a concern that oil and other chemicals have gotten into the soil. Antifreeze lettuce doesn’t sound like a good deal. The house has been empty for six months and I do not know how long it has been since folks parked in the garden, but… I am looking at hugelkultur gardens, raised beds, and purifying plants. We’ll want sustainable, inexpensive, and easy ideas and come up with a garden plan. Tune in each day this week! It might be a little early, but spring planting is right around the corner!
Good luck!