When to prune a topiary bay tree. Topiary bay trees are the most fragile and require trimming between late spring and midsummer. The plants should stay at a maximum height of 135cm, trimmed back ...

Plant Your Bay Tree: Place the young tree in the hole, backfill with soil around the base, and ensure it stands firm and upright. Water well, but avoid waterlogging the soil. 4.

If pruning a tree for shape, February and early March are best times. ... In Fort Collins, there is a 90% chance of seeing a hard freeze (28 degrees) on April 5 and a 50% chance on April 18.

Severe pruning — a.k.a. "coat racking" — is never good for ficus and other evergreen trees, but pruning during high heat is even worse.