Oct 08, It’s best to trim thuja trees between early spring and mid-summer; the specific timing depends upon how hard you need to cut back its foliage.
To maintain an ornamental shape, remove overgrowth in the spring and then wait until mid-summer to fine-tune the form. This timing allows the arborvitae an opportunity to put on new growth before bushremoval.buzz: Jeffrey Douglas.
Dec 10, Active growth begins in spring and continues until dormancy in fall. Like most evergreens, arborvitae should be trimmed while it is dormant. This is. Knowing your goal determines when is the best time to prune. Pruning Arborvitae to Maintain an Ornamental Look. Spring - Removing overgrowth is similar to helping the tree maintain its shape.
You will want to prune in mid-summer while the plant has time to grow to shoots before winter. The Best Time of Year to Trim Arborvitae Trees. Arborvitaes (Platycladus orientalis, Thuja occidentalis) are coniferous shrubs and trees with yellowish green, needlelike foliage.
The tree foliage is soft and feathery when young and grows more scalelike with age. Arborvitaes are best pruned and trimmed during late spring, if at all. Dec 26, A: The best time to prune arborvitae is at the end of winter -- right before new growth begins.
It's fine to shear them just don't go back so far that you're into bare wood.