The difference between terra cotta and plastic grow pots for your indoor office green plants is the rate of evaporation of water from either of your terra cotta or plastic pots.
If your office plants are grown in terra cotta pots, your rate of evaporation will be much greater than if your potted green plants were potted in plastic. The reason is terra cotta pots are porous for water to evaporate threw, plastic pots are not.
Plastc pots tend to keep the water in the soil of the potted plants in longer, requiring you to water your office green plants less frequently.
Plantscape Designs Inc services the New England foliage of the 128RTE and Woburn, MA areas.