HELP pruning 'Candleabra' Espalier
for several years I have been working on a candelabra espalier which I created from a young Cotoneaster shrub (used for hedging). It has been a slow but fun process.
This spring I decided to cut off the top of each branch to the same level which in hindsight I regret. By doing this, I had to retrain a side shoot to become the new leader which was time consuming. I have never done this before so am trying to learn as I go. Here is a picture:
Is it possible to encourage leaves to grow on the bark where there are no leaves (mostly on the inside frame)? How can I encourage a "bud" to form (by making some type of cut)? Any help would be appreciated. Here is a close-up of the area I would like to encourage leaf growth: