How do concrete outdoor flower pots compare to terracotta in heat retention for plant roots?

When choosing outdoor flower pots, heat retention is a critical factor for plant root health. Concrete and terracotta are two popular materials, but they behave differently under sunlight. Concrete pots are denser and heavier, absorbing and retaining heat longer, which can lead to higher soil temperatures. This may stress heat-sensitive plants but benefit those that thrive in warmth. Terracotta, being porous, allows better air circulation and evaporative cooling, keeping roots cooler in hot climates. However, it may dry out soil faster. For optimal plant health, consider your local climate and plant species when selecting between concrete and terracotta pots.