What are the effects of pot geometry on stone stress points?

The geometry of a pot plays a critical role in determining stress points on stones or other hard materials used in horticultural setups, such as bonsai cultivation. The shape, depth, and curvature of a container directly influence how weight and pressure are distributed across embedded stones, affecting both stability and plant health.

1. Shape and Stress Concentration:

- Round pots distribute stress evenly, reducing localized pressure on stones.

- Square or angular pots create concentrated stress points at corners, potentially causing fractures over time.

2. Depth and Load Distribution:

- Shallow pots increase lateral stress on stones, making them prone to tipping.

- Deeper pots provide vertical support, minimizing uneven stress but may require thicker stones.

3. Material Interaction:

- Glazed pots reduce friction, allowing slight stone movement and dynamic stress adjustment.

- Unglazed terra cotta increases grip, locking stones in place but amplifying static stress.

4. Practical Implications:

- For bonsai, selecting rounded, moderately deep pots preserves stone integrity.

- In rock gardens, shallow trays with wide bases prevent stress buildup.

Understanding these effects helps gardeners and designers optimize container choices, ensuring longevity for both stones and plants.