Yes, I had been reading over Ianto Evans' Polyculture in Gaia's Garden, but our goal is to create many polycultures using the variety of seeds we have.
This is the method we have been using to create a polyculture for each individual keyhole bed (linked in mandala fashion):
1. Create a seed list
2. Color code / Categorize each variety as being either fast, mid, or slow
3. Then, in three bowls (each marked
slow,
mid, or
fast), put in pieces of paper (each labeled with one seed variety)
4. Draw one or two (depending on how large you want your polyculture to be) from each bowl
5. Evaluate your drawings - we did this by cross-referencing each seed variety with a companion planting chart - right away, if two seeds butted heads we chose one to replace and started the evaluation over. For each seed variety, count the number of beneficial interactions it has with the other drawn seed varieties. The higher the end total - the stronger the polyculture. (We kept a simple tally sheet)
Here is an example of one of our strongest drawings thus far: tall utah celery, brandywine yellow tomato, genovese basil, bloomsdale spinach, broccoli, red onion (and we may modify it more later on...)
----This method builds a core for the polyculture. Now you can go through your strongest (highest points) and modify as you wish to strengthen even more (adding herbs, insectary plants, etc. just make sure no negative interactions exist between any two seeds in the polyculture!)
This method ensures you have plenty of succession variety AND beneficial interactions.
If anyone knows a better method, please let me know!