I think it’s a wonderful idea as plants can get a bit of outside in the office and create a fresh ambience. You can place them right at the reception as it gives a welcoming feel to the visitors.

You can install plants anywhere right from the lobby to the bathroom for a refreshing aura through out the office. Just take care of the plant size as if you have to place them at a desk or at some height they should be less in height. For floor plants you can choose taller ones.