Prune columnar apple trees in the late fall or in the early spring, when frost danger passes. Thin the tree when the fruit develops over the spring and summer months. Step 1: Clip off dead twigs, which feel brittle. Trim back unhealthy or dead growth to a healthy part of the branch.

What month is the best time to prune fruit trees?

When to Prune Fruit Trees

The best time for pruning fruit trees is at planting and in subsequent years, in early spring before buds break and trees are still dormant. Pruning should be undertaken at planting time where you cut the new stem off 24 to 30 inches (61-76 cm.) from the ground and remove any side shoots.

How do you care for a columnar apple tree?

Columnar Fruit Tree Care

Water columnar apple trees regularly; the soil should be neither soggy nor bone dry. Feed the trees regularly, using either a balanced fertilizer applied throughout the growing season, or a time-release fertilizer applied once every year.