I need to do a posting for window growing, but it has to be for each family to be really useful.
So this is a very short list of a lot of choices.
Phals grow anywhere in a home, are easy to grow, but need a cooling period to flower. So for about a month you need to move it to a cool location in your home or outside the first temperate month in the spring. Even house temperatures can prevent them from flowering. They want low light so will grow without requiring window sills.
Dendrobium can grow well in a home, but with limited space, I feel they grow too tall. Den-Phals types, which you see mostly, are tall and many grow to over three feet. You have to really want one if you have limited space.
Cattleya can be big or small. So chose the miniature or semi-miniature types. Miniatures to me mean plants that stay under 6 inches in leaf height and semi miniature go to 8-10 inches. There are many to chose from in this range and there is no need to grow larger plants with only limited space.
Lc Loveknot is in the miniature class and good for a window sill
Hknsa Sogo Doll is one of the easiest to grow in the semi miniature class. It can flower twice a year and flowers very young.
Blc Little stars x Maikai grows almost as easily as a weed.
I need a lot of work to make a more extensive list of suggestions.
When you are ready to expand your collection then Paphiopedilums (Lady Slippers) are good for a home. They require almost no light so they do well on a bedroom dresser. They can be grown in a vase of water like here, and I have one on my desk growing hydroponically in a vase that may be even easier to keep. Test results are not completed.
