Air-layering an indoor orange tree (from shoot)
Hello everyone! : D
I have an indoor orange tree - a small houseplant really (although it grows for about 18 years) - now, shortly, the problem is: even after two months the branch doesn't grow roots in the air-layered soil AT ALL. What must I do to really make it happen?
Now some details:
I was reading some more in-detail stuff about air-layering a few months ago because I decided to try to reproduce my orange tree by such method (I knew about that method before - but never really *seriously* tried it - I just tried it once before with a plastic cup with hole on the bottom and cut so that it could fit around one small branch (0.5 cm in diameter) - but I never put too much fate that it would work).
As I said - now I really firmly decided to reproduce my orange tree using the air-layering method, and read stuff to make sure I am doing it properly. Anyway - this is how I did it: I took some wet houseplant soil (the commercial one for flowers and such, with coconut husk fibers in it or something), I put that wet soil in a saran wrap and then wrapped it around one fresh shoot on my orange tree (the shoot is about 0.5 cm in diameter and about 40-50 cm tall) - it's green and new - it doesn't have any real bark on it - so I thought I don't need to make a cut on it, wound it, or anything (maybe this is a problem - ? ), and then I wrapped the whole thing with some black cardboard so it hold the shape (the soil covers 10 cm in length and it's 5-6 cm in diameter) and additionally I wrapped the whole lot with aluminum foil so it is dark inside. I waited for three weeks at first and then looked at the results - nothing; I tried it again - after a month - even used hot water from the tap - nothing again - the branch looked as if I did nothing - clean with no roots whatsoever! So that's all (I know nothing about plant growing... never really considered using rooting agents... help).
It's winter now so I use artificial lighting on my little-old orange tree - both fluorescent and incandescent - that's why it's growing new shoots.
I really want to reproduce my tree - what do I do to make it really happen??
Many thanks in advance! :)