... I was going to post a topic on this very subject. Is it one seedling with two stems? Or is it two separate trees? My lemon seedling is what appears to be two trees on one root system. I pulled the seedlings up by their roots so I could seperate them, but only found one root system. Hmm.

Yes, it's one seedling with 2 stems.

I've got 2 such twin seedlings. I cut off one stem from one of these 2 to see what happens.

I've now got 1 seedling with 3 stems emerging....mmm. I think I will leave it as it is and try to grow it.

The 3-stem seedling I mentioned above is now growing a 4th stem. Interesting. But is this good or bad? Somebody please advise.

As it wasn't growing as fast as the other single-stem seedlings I cut off 2 stems, leaving 2 stems. Lets see if it will grow faster now.