Courtesy of Wally S., Wally's Urban Market Garden, Saskatoon SK
We often get asked, "Should I make all of my beds SPIN-size?" SPIN's “standard size bed“ is a theoretical construct, as well as a practical one. Its dimensions are 2 feet wide by 25 feet long. This bed size is a basic unit of measure in the SPIN-Farming Basics system, and it serves as a reference point for planting, as well as revenue targeting. Having this reference served me well in the initial stages of developing my backyard farming operation because it eliminated a lot of trial and error, and it allowed me to measure my work rates and income.
But with experience came the confidence to adapt and experiment. Now I often use short beds, around 12 feet long. In suburban or rural plots I use what I call long beds, which might be double or triple the length of a standard bed.
SPIN Basics also calls for 1 foot walkways. One foot walkways work for many crops, but not all. You can adjust walkway width to accommodate crops that require different spacing. Walkway width can be two feet or even more for crops that vine out, such as pumpkin. I also use double width beds for crops that are quick growing, require no weeding and can be harvested all in one work session, like radish.
You should not be a slave to SPIN's concepts, and in fact, those who have become successful, like Curtis Stone at Green City Acres, and Jean Martin Fortier at Les Jardins de la Grelinette have modified the system to suit their own circumstances and exercise their own creativity. Not surprisingly, they've been able to surpass SPIN's main revenue benchmark of $50,000 gross from 20,000 sq. ft.
Both SPIN Basics and SPIN 2.0 provide standardized constructs, but SPIN is not meant to be a plug and play system. Some beginning farmers come to it expecting a template, as one of them put it, "to avoid doing it the long tedious way." Using a system like SPIN can accelerate progress, but it does not eliminate process. You still have to think, make judgments and use your intuition. SPIN is not farming for dummies. You need to use your s-mall plot in-telligence.
Question: Which of the following are SPIN beds?
Answer: All of them. These are all plots that Gail and I farm. Some are urban, some are suburban and some are rural . We apply the SPIN system at all of them.