Hello all! Long time no see!
A couple years ago I tried growing a seed from a starfruit that I ate. It sprouted and grew a couple true leaves (which I did not expect to be compound), but then after a few weeks it dried up and died. I couldn't figure out what I did wrong! Recently I was on YouTube and some guy from NZ was showing off his carambola seedlings, which he kept under plastic cups to keep the humidity up. I then understood what I did wrong!
This week I bought a couple carambola from the grocery store (mostly so I could try growing one again!), and ate one today, and got a few seeds from it. I'm not sure how viable they are, since some of them seemed a little flat. Once I was done eating, I collected them all from my plate and put them in a dish of water. This has a dual purpose: Firstly to clean all the gooey gunk off the seeds. Also, I had to go to class and didn't have time to pot them up, and I didn't want them to dry out.
This weekend I think I'll spend a little time putting them in dirt and figuring out some kind of miniature greenhouse for them. You know, so they don't die this time.
Edit: I ate an orange and got a seed! It was a navel orange, so I was surprised there were any seeds in the first place, but that's not the first time I've come across them from this variety. I actually got one to sprout earlier this year, but it only produced one leaf and I think it's slowly dying. So I put the orange seed in the water dish with all the carambola seeds.