How to add tiers to a 3-tier Apple Espalier
I planted these 6-in-1 three tier apple espaliers just over a year ago and they're finally well rooted. There are two planted about 12 feet apart from one another.
Three tier trees was all I could get, but want them to have at least 6 levels - or at least get up to about 6 feet high.
How can I train them higher since the leader was cut before I got them? On one tree there is a vertical shoot from about 1 foot below the top tier. Should I encourage that to be a new leader? There are also several vertical branches close to the middle off of the top tier.
I would like it to produce fruit so wondering if selecting a branch off of the top tier will limit the growth to the top of the trees.