Early April is still an excellent time to prune olive trees. We pruned two or three trees a day at the Horta and disposed the branches in line. Despite the wide availability of fresh grass, our Churra algarvia ewes loved it. The day after, all the available leaves had been eaten and I was turning the branches to allow them to reach the rest of the leaves.
Here, you can see the pruning transformation of one of the isolated olive trees, after about one hour of patient work.