Starfruit (carambola) growing as a thin stick
I have 2 starfruits planted from seed. They are easy to germinate and grow but I am puzzled by how they are growing. They are 5 feet tall but pencil-thin, and fall over instantly without constant sturdy support. This doesn't seem to be improving as they get taller - if anything they are getting worse.
What am I supposed to be doing here? I like the little trees but how am I going to make them behave like a real tree rather than a vine?