Most food plants spread their roots outward before growing deeper.
That outward spread is where they absorb most of their water and nutrients.
Wide containers:
- hold moisture more evenly
- reduce hot, dry pockets
- help prevent stress and root rot caused by soggy bottoms
Deep pots have their place (think carrots or parsnips), but for many vegetables and herbs, width matters more than depth.
Grow smarter:
Match the container to how the plant grows underground, not how it looks above ground.