I have an indoor potted citrus tree (grown from a seed) that has a great sentimental value for me but that I have cared for improperly and it has been in a very bad shape. It has recovered now but growing very tall and spindly, and now it has reached some 180cm in height and bumping in the ceiling of the windowsill.
I know that I should prune it and so have started with cutting of the tip. But I very much would like to root this cutting and grow it into another new citrus tree. As a backup tree, if you will, before I engage in more risky pruning of the main tree.
This is what I have done thus far:
- Cut of the tip 20cm of the tree, I made the cut right below a leaf node in a 45 degree angle
- Removed all but two upper leaves (some where very big, some misshapen from rolling up against the ceiling)
- Lightly scored and scratched the bark of the first few centimetrs of the cutting at the bottom to hopefully promote root growth
- Have kept it in water with some growth hormone and a root promoting fertilizer mixed in.
The tip of the cutting has a few tiny new leaves growing. Should I cut the tip off? My reasoning is that the buds are just taking away the energy from growing roots. And also that the two large leaves that I left are more than enough for the plant for now.
I now worry that adding fertilizer to the water might have been a bad idea. It has humic, fulvic, ulmic acids in it and supposedly if for stimulating roots and also soaking seeds etc. Have I made a mistake with adding it or maybe I should also use it when transferring the cutting to soil?
How much light and warmth is necessary for the cutting at this stage? I now keep it at the windowsill but the light is muted and weather cold. Would adding artificial lights help at this stage?
I would greatly appreciate any comments on my approach and advice!