Schefflera arboricola: Dwarf Umbrella Tree in 6" Nursery Pot
This little Dwarf Umbrella tree can grow up to 4 to 8 feet indoors. Yes, that will take a long time, but if you love watching things grow it's a really fun one. It gets really cute little new leaves that keep coming out in the spring and summer and is fun to watch grow.
Light: It doesn't want to be in your brightest window but it can't handle a dark corner either. For best results, something like a north-facing window or the middle of a bright room would be great.
Humidity: It likes high humidity but as I'm writing this I have a lot of these that are doing well in lower humidity in my own home.