Plastic, clay, wood and metal are all good materials for plant containers. However, the most appropriate material to use for any plant container depends on a number of factors related to its specific use.
A variety of materials are suitable for plant containers. However, gardeners need to select a planter's material based on the needs of the plants they intend to place in that planter.
Plastic containers have the advantage of being one of the lightest materials available for plant containers. This makes them easy to move when necessary, and they also conserve moisture, which makes it possible to water plants less frequently. Plastic containers are available in a variety of sizes and styles, which makes it easier to find containers that suit the style of a particular garden.
Terra-cotta and clay planters are durable and inexpensive. Available in many styles, they are aesthetically pleasing in the majority of gardens. However, plants in these containers require frequent watering because these pots tend to dry out quickly. They are also susceptible to cracking if left out in areas where the temperature drops below freezing.
Wooden containers are ideal for gardeners who wish to leave the containers out throughout the year because they can withstand freezing temperatures. They also afford good water retention. Gardeners can paint wooden containers to match any kind of decor, but they are generally quite heavy, which makes them undesirable when gardeners need mobility.
Metal containers are generally heavy, which makes them an excellent choice for tall plants that need extra stability. However, this material absorbs heat, and frequent watering is necessary to make sure that the roots of the plant do not overheat and die.