Hello, I'm establishing a 1/4 acre garden/farm this year. While designing the garden I've essentially grouped the vegetables by family. I figure I'll just rotate the 'families' around the 1/4 acre each year until each returns to its original spot 4 years later. Is this how you guys do rotations on larger plots like this? I'm imagining that by grouping all my nightshades together I could help a disease like late blight spread like wildfire. Is it wiser to avoid clumping families together? Thanks!