Terracotta pots have certain downsides that may make them less ideal for some plants.
Gardening experts say many plants will struggle when planted in terracotta pots. Here's why:
- Porous Nature: Terracotta is a porous material, meaning it absorbs water. This causes the soil inside to dry out more quickly than it would in non-porous containers, like plastic or glazed ceramic. For plants that require consistent moisture, such as ferns or tropical plants, terracotta pots can make it challenging to keep the soil sufficiently damp.
- Temperature Fluctuations: Terracotta pots don’t insulate well, so they are more susceptible to temperature changes. They can overheat in direct sunlight, drying out the soil quickly and harming roots. In winter, terracotta can become very cold, which can be stressful for plant roots, especially for indoor plants.
- Salt and Mineral Build-up: Because terracotta is porous, salts and minerals from water and fertilizers can seep into the pot, eventually causing a white crust to form on the outside. This buildup can sometimes leach back into the soil, potentially harming plants that are sensitive to salts.
- Heavy Weight: Terracotta pots tend to be heavy, which is inconvenient if you move plants around. They can easily crack or break if dropped or exposed to freezing temperatures with moisture inside.