Standing for S-mall P-lot IN-tensive, SPIN farming is advertised as a non-technical, easy-to-learn and inexpensive-to-implement vegetable farming system that allows an individual to grow more than $50,000 worth of produce per half acre. The system was created by Wally Satzewich and Gail Vandersteen, who themselves manage Wallys Urban Market Garden, a multi-locational sub-acre urban farm in Saskatoon, Saskatchewan, Canada.