Hi all, I'm new to the brassicas world, but I've heard tell of not planting such in the same bed more than a year in a row.
The limit should read not planting in the same
soil more than a year in a row
Would this apply even if the soil is renewed/refreshed?
Possibly...depending on the method of renewal. If you just add some synthetic fertilizer, for example, then No. If, on the other hand, you added composted animal manure, green manure, and changed out some soil, should work.
... What if they're on one end of the bed one year, then the opposite end on the other year (roughly 10-15 feet apart)?
I believe that would work just fine.
By the way, if you have had a soil test, check the boron levels. You may find, like myself, that your soil is low/empty of boron. It makes a huge difference in growing all the Brassicas. Just a bonus tip for you.