My response to those naysayers is usually the following: “If you can keep lettuce in the fridge, you can keep tropical plants on the windowsill.”We apologize, but this video has failed to load. Article contentIf you are new to tropical plants, or want to be, I recommend starting small. Rather than spending big dollars on mature plants, try your hand on a few smaller plants. I recommend a small investment of five or six plants in pots that are four or five inches in diameter. Smaller pots tend to dry out too quickly.