Most people would probably think that a project like this would be insanely expensive and require a great deal of work. But what if we told you that you could create a collection of miniature greenhouses just by replacing your windows? Garden windows from Window Depot USA add a little extra space by projecting slightly outward, allowing your plants the opportunity to catch plenty of sunlight. They are often installed in the kitchen but can be installed basically anywhere. They look like a small Bay or Bow Window.