I was thinking maybe one was watered with tap water and the other was watered differently. As they were both in the same location.
They are not air layered.You air layered it?
More hint: those trees are in same site, same lighting, same water.I was thinking maybe one was watered with tap water and the other was watered differently. As they were both in the same location.
I like your thinking process.Water hardness would affect both .