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No pruning is necessary when you plant"Green Giant" where it can attain its full height and diameter without encroaching on buildings, fences, power lines or other more desirable plants.

To form a. Sep 21, Trim Green Giant trees once a year to the height you desire. Standing on the ladder, use a hedge trimmer to cut a few feet off the top of the growing-strawberry-guava tree from cuttings. Create a hedge out of the trees by cutting off most of the height. Use the trimmer to create a box-like shape or rounded shape.

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 stumpcleanup.bar: Jeffrey Douglas. Start at the top reducing the height as much as possible, then prune the sides from the top down. Attempting to or keeping them approximately 1/4 their normal size will likely shorten their lives.

If growth on the sunny side has started cm sprigs or inches, at the same time, hard prune the shaded side as you had the sunny side.

Eventually they will get much bigger than desired as the wood will get so heavy and big you will not be able to prune them properly without letting them get bigger. Pruning Green Giant Arborvitae. Without any pruning, Thuja ‘Green Giant’ will grow into a stately pyramidal shape with foliage that stays dense all the way to the ground.

After its first year of growth, it can be pruned to fit your needs. Dec 15, Hand pruners are best for cutting branches that are less than 1/2 inch in diameter, whereas lopping shears should be used for branches that are. Jan 05, Prune your thuja preferably at the end of summer or at the beginning of spring. Feel free to prune severely because thuja tends to grow very, very fast.

A heavy pruning end of August is enough to keep this growth under control. That is also the season where sap descends and so it will slow the thuja’s growth a bit.